./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.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_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/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_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/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_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/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 0a03a5fc32da65217c1f578a6fea0c2c0e07a09fd6b8159429f8d1aa4c1c45a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:18:34,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:18:34,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:18:34,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:18:34,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:18:34,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:18:34,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:18:34,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:18:34,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:18:34,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:18:34,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:18:34,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:18:34,927 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:18:34,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:18:34,928 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:18:34,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:18:34,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:18:34,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:18:34,930 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:18:34,931 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:18:34,932 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:18:34,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:18:34,933 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:18:34,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:18:34,934 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:18:34,934 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:18:34,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:18:34,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:18:34,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:18:34,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:34,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:18:34,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:18:34,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:18:34,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:18:34,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:18:34,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:18:34,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:18:34,939 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:18:34,940 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_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a03a5fc32da65217c1f578a6fea0c2c0e07a09fd6b8159429f8d1aa4c1c45a8 [2023-11-12 02:18:35,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:18:35,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:18:35,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:18:35,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:18:35,330 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:18:35,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:18:39,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:18:39,471 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:18:39,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:18:39,506 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/data/ee258a618/1683561d2a55494182b1bf942a956429/FLAG5905fca20 [2023-11-12 02:18:39,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/data/ee258a618/1683561d2a55494182b1bf942a956429 [2023-11-12 02:18:39,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:18:39,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:18:39,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:39,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:18:39,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:18:39,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:39" (1/1) ... [2023-11-12 02:18:39,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707d02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:39, skipping insertion in model container [2023-11-12 02:18:39,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:39" (1/1) ... [2023-11-12 02:18:39,646 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:18:40,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:40,198 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:18:40,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:40,393 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:18:40,394 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:18:40,404 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:18:40,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40 WrapperNode [2023-11-12 02:18:40,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:40,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:40,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:18:40,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:18:40,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,518 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2023-11-12 02:18:40,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:40,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:18:40,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:18:40,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:18:40,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:18:40,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:18:40,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:18:40,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:18:40,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (1/1) ... [2023-11-12 02:18:40,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:40,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:40,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:18:40,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:18:40,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:18:40,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:18:40,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:18:40,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:18:40,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:18:40,719 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:18:40,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:18:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:18:40,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:18:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:18:40,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:18:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:18:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:18:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:18:40,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:18:40,723 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 02:18:40,906 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:18:40,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:18:41,396 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:18:41,681 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:18:41,682 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:18:41,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:41 BoogieIcfgContainer [2023-11-12 02:18:41,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:18:41,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:18:41,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:18:41,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:18:41,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:18:39" (1/3) ... [2023-11-12 02:18:41,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b265fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:41, skipping insertion in model container [2023-11-12 02:18:41,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:40" (2/3) ... [2023-11-12 02:18:41,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b265fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:41, skipping insertion in model container [2023-11-12 02:18:41,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:41" (3/3) ... [2023-11-12 02:18:41,699 INFO L112 eAbstractionObserver]: Analyzing ICFG mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:18:41,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:18:41,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-12 02:18:41,726 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:18:41,826 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:18:41,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 124 transitions, 260 flow [2023-11-12 02:18:41,952 INFO L124 PetriNetUnfolderBase]: 3/121 cut-off events. [2023-11-12 02:18:41,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:18:41,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 3/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-12 02:18:41,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 124 transitions, 260 flow [2023-11-12 02:18:41,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 121 transitions, 251 flow [2023-11-12 02:18:41,971 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:18:41,987 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 121 transitions, 251 flow [2023-11-12 02:18:41,991 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 121 transitions, 251 flow [2023-11-12 02:18:41,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 121 transitions, 251 flow [2023-11-12 02:18:42,031 INFO L124 PetriNetUnfolderBase]: 3/121 cut-off events. [2023-11-12 02:18:42,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:18:42,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 3/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-12 02:18:42,037 INFO L119 LiptonReduction]: Number of co-enabled transitions 2356 [2023-11-12 02:18:48,847 INFO L134 LiptonReduction]: Checked pairs total: 5925 [2023-11-12 02:18:48,849 INFO L136 LiptonReduction]: Total number of compositions: 114 [2023-11-12 02:18:48,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:18:48,896 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;@17773ab4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:18:48,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-12 02:18:48,899 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:18:48,899 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:18:48,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:18:48,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:48,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:18:48,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:48,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:48,908 INFO L85 PathProgramCache]: Analyzing trace with hash 545, now seen corresponding path program 1 times [2023-11-12 02:18:48,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:48,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127261208] [2023-11-12 02:18:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:48,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:49,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:49,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127261208] [2023-11-12 02:18:49,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127261208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:49,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:49,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:18:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196020711] [2023-11-12 02:18:49,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:49,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:18:49,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:18:49,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:18:49,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 238 [2023-11-12 02:18:49,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 73 flow. Second operand has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:49,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:49,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 238 [2023-11-12 02:18:49,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:49,606 INFO L124 PetriNetUnfolderBase]: 1043/1567 cut-off events. [2023-11-12 02:18:49,606 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:18:49,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3158 conditions, 1567 events. 1043/1567 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7461 event pairs, 1043 based on Foata normal form. 60/1326 useless extension candidates. Maximal degree in co-relation 3147. Up to 1555 conditions per place. [2023-11-12 02:18:49,627 INFO L140 encePairwiseOnDemand]: 231/238 looper letters, 22 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2023-11-12 02:18:49,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 103 flow [2023-11-12 02:18:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:18:49,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:18:49,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 251 transitions. [2023-11-12 02:18:49,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5273109243697479 [2023-11-12 02:18:49,650 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 251 transitions. [2023-11-12 02:18:49,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 251 transitions. [2023-11-12 02:18:49,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:49,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 251 transitions. [2023-11-12 02:18:49,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 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 02:18:49,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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 02:18:49,671 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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 02:18:49,673 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 73 flow. Second operand 2 states and 251 transitions. [2023-11-12 02:18:49,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 103 flow [2023-11-12 02:18:49,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:18:49,680 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 56 flow [2023-11-12 02:18:49,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2023-11-12 02:18:49,687 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places. [2023-11-12 02:18:49,687 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 56 flow [2023-11-12 02:18:49,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:49,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:49,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:49,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:18:49,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:49,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash 691142336, now seen corresponding path program 1 times [2023-11-12 02:18:49,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:49,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527562610] [2023-11-12 02:18:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:49,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:50,101 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 02:18:50,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:50,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527562610] [2023-11-12 02:18:50,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527562610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:50,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:50,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:18:50,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505368843] [2023-11-12 02:18:50,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:50,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:18:50,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:50,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:18:50,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:18:50,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 238 [2023-11-12 02:18:50,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:50,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:50,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 238 [2023-11-12 02:18:50,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:50,490 INFO L124 PetriNetUnfolderBase]: 823/1338 cut-off events. [2023-11-12 02:18:50,490 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:18:50,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 1338 events. 823/1338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7086 event pairs, 163 based on Foata normal form. 0/1190 useless extension candidates. Maximal degree in co-relation 2608. Up to 949 conditions per place. [2023-11-12 02:18:50,502 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 27 selfloop transitions, 2 changer transitions 4/36 dead transitions. [2023-11-12 02:18:50,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 144 flow [2023-11-12 02:18:50,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:18:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:18:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2023-11-12 02:18:50,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5098039215686274 [2023-11-12 02:18:50,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2023-11-12 02:18:50,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2023-11-12 02:18:50,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:50,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2023-11-12 02:18:50,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:50,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 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 02:18:50,523 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 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 02:18:50,524 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 56 flow. Second operand 3 states and 364 transitions. [2023-11-12 02:18:50,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 144 flow [2023-11-12 02:18:50,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 144 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:18:50,529 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 54 flow [2023-11-12 02:18:50,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2023-11-12 02:18:50,530 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2023-11-12 02:18:50,531 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 54 flow [2023-11-12 02:18:50,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:50,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:50,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:50,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:18:50,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:50,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:50,539 INFO L85 PathProgramCache]: Analyzing trace with hash -249513008, now seen corresponding path program 1 times [2023-11-12 02:18:50,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:50,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711683981] [2023-11-12 02:18:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:51,457 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 02:18:51,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:51,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711683981] [2023-11-12 02:18:51,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711683981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:51,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:51,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:18:51,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836474835] [2023-11-12 02:18:51,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:51,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:51,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:51,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:51,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:51,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 238 [2023-11-12 02:18:51,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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 02:18:51,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:51,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 238 [2023-11-12 02:18:51,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:52,392 INFO L124 PetriNetUnfolderBase]: 1694/2649 cut-off events. [2023-11-12 02:18:52,392 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2023-11-12 02:18:52,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5403 conditions, 2649 events. 1694/2649 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 13940 event pairs, 131 based on Foata normal form. 0/2549 useless extension candidates. Maximal degree in co-relation 5399. Up to 1627 conditions per place. [2023-11-12 02:18:52,416 INFO L140 encePairwiseOnDemand]: 227/238 looper letters, 55 selfloop transitions, 23 changer transitions 0/79 dead transitions. [2023-11-12 02:18:52,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 79 transitions, 340 flow [2023-11-12 02:18:52,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:18:52,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:18:52,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 760 transitions. [2023-11-12 02:18:52,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4561824729891957 [2023-11-12 02:18:52,421 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 760 transitions. [2023-11-12 02:18:52,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 760 transitions. [2023-11-12 02:18:52,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:52,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 760 transitions. [2023-11-12 02:18:52,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 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 02:18:52,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:18:52,431 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:18:52,431 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 54 flow. Second operand 7 states and 760 transitions. [2023-11-12 02:18:52,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 79 transitions, 340 flow [2023-11-12 02:18:52,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 79 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:18:52,436 INFO L231 Difference]: Finished difference. Result has 40 places, 45 transitions, 207 flow [2023-11-12 02:18:52,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=207, PETRI_PLACES=40, PETRI_TRANSITIONS=45} [2023-11-12 02:18:52,437 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2023-11-12 02:18:52,438 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 45 transitions, 207 flow [2023-11-12 02:18:52,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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 02:18:52,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:52,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:52,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:18:52,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:52,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:52,445 INFO L85 PathProgramCache]: Analyzing trace with hash 855030458, now seen corresponding path program 1 times [2023-11-12 02:18:52,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:52,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093066509] [2023-11-12 02:18:52,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:52,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:52,924 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 02:18:52,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:52,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093066509] [2023-11-12 02:18:52,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093066509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:52,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:52,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:18:52,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894676313] [2023-11-12 02:18:52,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:52,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:52,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:52,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:52,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:53,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 238 [2023-11-12 02:18:53,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 45 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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 02:18:53,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:53,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 238 [2023-11-12 02:18:53,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:53,499 INFO L124 PetriNetUnfolderBase]: 1156/1824 cut-off events. [2023-11-12 02:18:53,499 INFO L125 PetriNetUnfolderBase]: For 1709/1853 co-relation queries the response was YES. [2023-11-12 02:18:53,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5538 conditions, 1824 events. 1156/1824 cut-off events. For 1709/1853 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 9490 event pairs, 593 based on Foata normal form. 205/1963 useless extension candidates. Maximal degree in co-relation 5530. Up to 1645 conditions per place. [2023-11-12 02:18:53,519 INFO L140 encePairwiseOnDemand]: 234/238 looper letters, 30 selfloop transitions, 3 changer transitions 11/49 dead transitions. [2023-11-12 02:18:53,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 295 flow [2023-11-12 02:18:53,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:18:53,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:18:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 501 transitions. [2023-11-12 02:18:53,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42100840336134454 [2023-11-12 02:18:53,522 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 501 transitions. [2023-11-12 02:18:53,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 501 transitions. [2023-11-12 02:18:53,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:53,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 501 transitions. [2023-11-12 02:18:53,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 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 02:18:53,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 02:18:53,531 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 02:18:53,531 INFO L175 Difference]: Start difference. First operand has 40 places, 45 transitions, 207 flow. Second operand 5 states and 501 transitions. [2023-11-12 02:18:53,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 295 flow [2023-11-12 02:18:53,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 49 transitions, 295 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:18:53,540 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 126 flow [2023-11-12 02:18:53,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2023-11-12 02:18:53,543 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-11-12 02:18:53,543 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 126 flow [2023-11-12 02:18:53,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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 02:18:53,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:53,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:53,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:18:53,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:53,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1314938909, now seen corresponding path program 1 times [2023-11-12 02:18:53,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:53,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878023320] [2023-11-12 02:18:53,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:53,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:54,123 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 02:18:54,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:54,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878023320] [2023-11-12 02:18:54,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878023320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:54,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:54,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:18:54,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807589743] [2023-11-12 02:18:54,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:54,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:54,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:54,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:54,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 238 [2023-11-12 02:18:54,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 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 02:18:54,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:54,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 238 [2023-11-12 02:18:54,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:54,671 INFO L124 PetriNetUnfolderBase]: 1307/2116 cut-off events. [2023-11-12 02:18:54,671 INFO L125 PetriNetUnfolderBase]: For 2000/2113 co-relation queries the response was YES. [2023-11-12 02:18:54,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6236 conditions, 2116 events. 1307/2116 cut-off events. For 2000/2113 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11194 event pairs, 432 based on Foata normal form. 110/2179 useless extension candidates. Maximal degree in co-relation 6227. Up to 1612 conditions per place. [2023-11-12 02:18:54,697 INFO L140 encePairwiseOnDemand]: 233/238 looper letters, 34 selfloop transitions, 4 changer transitions 19/61 dead transitions. [2023-11-12 02:18:54,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 61 transitions, 361 flow [2023-11-12 02:18:54,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:18:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:18:54,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 565 transitions. [2023-11-12 02:18:54,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47478991596638653 [2023-11-12 02:18:54,701 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 565 transitions. [2023-11-12 02:18:54,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 565 transitions. [2023-11-12 02:18:54,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:54,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 565 transitions. [2023-11-12 02:18:54,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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 02:18:54,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 02:18:54,709 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 02:18:54,710 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 126 flow. Second operand 5 states and 565 transitions. [2023-11-12 02:18:54,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 61 transitions, 361 flow [2023-11-12 02:18:54,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 61 transitions, 351 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-11-12 02:18:54,754 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 160 flow [2023-11-12 02:18:54,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=160, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-11-12 02:18:54,755 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-11-12 02:18:54,756 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 160 flow [2023-11-12 02:18:54,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 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 02:18:54,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:54,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:54,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:18:54,757 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:54,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:54,758 INFO L85 PathProgramCache]: Analyzing trace with hash 2108320407, now seen corresponding path program 1 times [2023-11-12 02:18:54,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:54,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382700314] [2023-11-12 02:18:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:54,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:55,129 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 02:18:55,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:55,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382700314] [2023-11-12 02:18:55,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382700314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:55,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:55,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:55,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020843689] [2023-11-12 02:18:55,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:55,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:18:55,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:55,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:18:55,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:18:55,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 238 [2023-11-12 02:18:55,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:55,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:55,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 238 [2023-11-12 02:18:55,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:55,668 INFO L124 PetriNetUnfolderBase]: 1271/2067 cut-off events. [2023-11-12 02:18:55,669 INFO L125 PetriNetUnfolderBase]: For 2483/2524 co-relation queries the response was YES. [2023-11-12 02:18:55,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6683 conditions, 2067 events. 1271/2067 cut-off events. For 2483/2524 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10770 event pairs, 216 based on Foata normal form. 79/2120 useless extension candidates. Maximal degree in co-relation 6673. Up to 1353 conditions per place. [2023-11-12 02:18:55,691 INFO L140 encePairwiseOnDemand]: 231/238 looper letters, 40 selfloop transitions, 12 changer transitions 16/72 dead transitions. [2023-11-12 02:18:55,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 72 transitions, 475 flow [2023-11-12 02:18:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:18:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 669 transitions. [2023-11-12 02:18:55,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4684873949579832 [2023-11-12 02:18:55,695 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 669 transitions. [2023-11-12 02:18:55,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 669 transitions. [2023-11-12 02:18:55,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:55,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 669 transitions. [2023-11-12 02:18:55,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 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 02:18:55,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:18:55,702 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:18:55,702 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 160 flow. Second operand 6 states and 669 transitions. [2023-11-12 02:18:55,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 72 transitions, 475 flow [2023-11-12 02:18:55,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 465 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-12 02:18:55,720 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 236 flow [2023-11-12 02:18:55,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-11-12 02:18:55,723 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2023-11-12 02:18:55,723 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 236 flow [2023-11-12 02:18:55,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:55,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:55,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:55,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:18:55,725 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:55,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2106705927, now seen corresponding path program 2 times [2023-11-12 02:18:55,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:55,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861131725] [2023-11-12 02:18:55,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:55,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:56,180 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 02:18:56,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:56,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861131725] [2023-11-12 02:18:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861131725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:56,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:56,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827077821] [2023-11-12 02:18:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:56,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:18:56,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:56,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:18:56,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:18:56,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 238 [2023-11-12 02:18:56,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:56,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:56,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 238 [2023-11-12 02:18:56,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:56,734 INFO L124 PetriNetUnfolderBase]: 1211/1969 cut-off events. [2023-11-12 02:18:56,734 INFO L125 PetriNetUnfolderBase]: For 3789/3877 co-relation queries the response was YES. [2023-11-12 02:18:56,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6892 conditions, 1969 events. 1211/1969 cut-off events. For 3789/3877 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 10167 event pairs, 236 based on Foata normal form. 89/2018 useless extension candidates. Maximal degree in co-relation 6880. Up to 1327 conditions per place. [2023-11-12 02:18:56,756 INFO L140 encePairwiseOnDemand]: 231/238 looper letters, 38 selfloop transitions, 12 changer transitions 16/70 dead transitions. [2023-11-12 02:18:56,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 70 transitions, 516 flow [2023-11-12 02:18:56,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:56,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:18:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 667 transitions. [2023-11-12 02:18:56,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46708683473389356 [2023-11-12 02:18:56,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 667 transitions. [2023-11-12 02:18:56,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 667 transitions. [2023-11-12 02:18:56,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:56,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 667 transitions. [2023-11-12 02:18:56,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 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 02:18:56,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:18:56,767 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:18:56,767 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 236 flow. Second operand 6 states and 667 transitions. [2023-11-12 02:18:56,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 70 transitions, 516 flow [2023-11-12 02:18:56,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 70 transitions, 483 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-11-12 02:18:56,793 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 249 flow [2023-11-12 02:18:56,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-11-12 02:18:56,794 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2023-11-12 02:18:56,794 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 249 flow [2023-11-12 02:18:56,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:56,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:56,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:56,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:18:56,795 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:56,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:56,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2108368457, now seen corresponding path program 1 times [2023-11-12 02:18:56,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:56,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436397722] [2023-11-12 02:18:56,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:56,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:57,286 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 02:18:57,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:57,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436397722] [2023-11-12 02:18:57,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436397722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:57,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:57,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:57,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524027296] [2023-11-12 02:18:57,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:57,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:18:57,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:57,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:18:57,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:18:57,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 238 [2023-11-12 02:18:57,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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 02:18:57,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:57,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 238 [2023-11-12 02:18:57,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:57,834 INFO L124 PetriNetUnfolderBase]: 1172/1905 cut-off events. [2023-11-12 02:18:57,834 INFO L125 PetriNetUnfolderBase]: For 3960/4074 co-relation queries the response was YES. [2023-11-12 02:18:57,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6674 conditions, 1905 events. 1172/1905 cut-off events. For 3960/4074 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9746 event pairs, 263 based on Foata normal form. 95/1960 useless extension candidates. Maximal degree in co-relation 6661. Up to 1338 conditions per place. [2023-11-12 02:18:57,866 INFO L140 encePairwiseOnDemand]: 232/238 looper letters, 50 selfloop transitions, 8 changer transitions 14/76 dead transitions. [2023-11-12 02:18:57,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 76 transitions, 560 flow [2023-11-12 02:18:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:18:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 663 transitions. [2023-11-12 02:18:57,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2023-11-12 02:18:57,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 663 transitions. [2023-11-12 02:18:57,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 663 transitions. [2023-11-12 02:18:57,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:57,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 663 transitions. [2023-11-12 02:18:57,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 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 02:18:57,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:18:57,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:18:57,883 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 249 flow. Second operand 6 states and 663 transitions. [2023-11-12 02:18:57,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 76 transitions, 560 flow [2023-11-12 02:18:57,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 76 transitions, 532 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-11-12 02:18:57,898 INFO L231 Difference]: Finished difference. Result has 50 places, 42 transitions, 289 flow [2023-11-12 02:18:57,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=289, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2023-11-12 02:18:57,901 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2023-11-12 02:18:57,901 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 289 flow [2023-11-12 02:18:57,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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 02:18:57,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:57,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:57,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:18:57,903 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:57,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:57,903 INFO L85 PathProgramCache]: Analyzing trace with hash 933391119, now seen corresponding path program 1 times [2023-11-12 02:18:57,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:57,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153468890] [2023-11-12 02:18:57,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:57,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:58,344 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 02:18:58,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:58,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153468890] [2023-11-12 02:18:58,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153468890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:58,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:58,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:58,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581246455] [2023-11-12 02:18:58,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:58,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:18:58,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:58,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:18:58,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:18:58,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 238 [2023-11-12 02:18:58,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 289 flow. Second operand has 6 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 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 02:18:58,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:58,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 238 [2023-11-12 02:18:58,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:58,877 INFO L124 PetriNetUnfolderBase]: 1209/1953 cut-off events. [2023-11-12 02:18:58,877 INFO L125 PetriNetUnfolderBase]: For 4918/5037 co-relation queries the response was YES. [2023-11-12 02:18:58,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7361 conditions, 1953 events. 1209/1953 cut-off events. For 4918/5037 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9968 event pairs, 244 based on Foata normal form. 66/1975 useless extension candidates. Maximal degree in co-relation 7347. Up to 1333 conditions per place. [2023-11-12 02:18:58,922 INFO L140 encePairwiseOnDemand]: 230/238 looper letters, 45 selfloop transitions, 18 changer transitions 9/76 dead transitions. [2023-11-12 02:18:58,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 76 transitions, 602 flow [2023-11-12 02:18:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:18:58,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2023-11-12 02:18:58,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46288515406162467 [2023-11-12 02:18:58,927 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 661 transitions. [2023-11-12 02:18:58,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 661 transitions. [2023-11-12 02:18:58,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:58,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 661 transitions. [2023-11-12 02:18:58,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 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 02:18:58,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:18:58,935 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:18:58,935 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 289 flow. Second operand 6 states and 661 transitions. [2023-11-12 02:18:58,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 76 transitions, 602 flow [2023-11-12 02:18:58,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 76 transitions, 583 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-11-12 02:18:58,952 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 377 flow [2023-11-12 02:18:58,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=377, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2023-11-12 02:18:58,953 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2023-11-12 02:18:58,953 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 377 flow [2023-11-12 02:18:58,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 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 02:18:58,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:58,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:58,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:18:58,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:18:58,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:58,955 INFO L85 PathProgramCache]: Analyzing trace with hash 883169259, now seen corresponding path program 2 times [2023-11-12 02:18:58,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:58,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710765981] [2023-11-12 02:18:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:58,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:59,456 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 02:18:59,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:59,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710765981] [2023-11-12 02:18:59,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710765981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:59,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:59,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:18:59,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499047416] [2023-11-12 02:18:59,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:59,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:18:59,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:59,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:18:59,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:18:59,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 238 [2023-11-12 02:18:59,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 377 flow. Second operand has 7 states, 7 states have (on average 103.85714285714286) internal successors, (727), 7 states have internal predecessors, (727), 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 02:18:59,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:59,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 238 [2023-11-12 02:18:59,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:00,124 INFO L124 PetriNetUnfolderBase]: 1232/1994 cut-off events. [2023-11-12 02:19:00,125 INFO L125 PetriNetUnfolderBase]: For 6538/6654 co-relation queries the response was YES. [2023-11-12 02:19:00,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8165 conditions, 1994 events. 1232/1994 cut-off events. For 6538/6654 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 10275 event pairs, 236 based on Foata normal form. 74/2018 useless extension candidates. Maximal degree in co-relation 8150. Up to 1337 conditions per place. [2023-11-12 02:19:00,149 INFO L140 encePairwiseOnDemand]: 230/238 looper letters, 49 selfloop transitions, 21 changer transitions 12/86 dead transitions. [2023-11-12 02:19:00,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 86 transitions, 769 flow [2023-11-12 02:19:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:19:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:19:00,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 768 transitions. [2023-11-12 02:19:00,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460984393757503 [2023-11-12 02:19:00,154 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 768 transitions. [2023-11-12 02:19:00,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 768 transitions. [2023-11-12 02:19:00,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:00,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 768 transitions. [2023-11-12 02:19:00,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 109.71428571428571) internal successors, (768), 7 states have internal predecessors, (768), 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 02:19:00,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:19:00,163 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:19:00,164 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 377 flow. Second operand 7 states and 768 transitions. [2023-11-12 02:19:00,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 86 transitions, 769 flow [2023-11-12 02:19:00,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 86 transitions, 719 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-11-12 02:19:00,186 INFO L231 Difference]: Finished difference. Result has 56 places, 53 transitions, 459 flow [2023-11-12 02:19:00,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=459, PETRI_PLACES=56, PETRI_TRANSITIONS=53} [2023-11-12 02:19:00,187 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2023-11-12 02:19:00,187 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 53 transitions, 459 flow [2023-11-12 02:19:00,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 103.85714285714286) internal successors, (727), 7 states have internal predecessors, (727), 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 02:19:00,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:00,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:00,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:19:00,188 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:00,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash 883342239, now seen corresponding path program 3 times [2023-11-12 02:19:00,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:00,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346570854] [2023-11-12 02:19:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:00,676 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 02:19:00,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:00,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346570854] [2023-11-12 02:19:00,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346570854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:00,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:00,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:19:00,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416837327] [2023-11-12 02:19:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:00,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:19:00,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:00,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:19:00,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:19:00,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 238 [2023-11-12 02:19:00,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 459 flow. Second operand has 7 states, 7 states have (on average 103.85714285714286) internal successors, (727), 7 states have internal predecessors, (727), 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 02:19:00,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:00,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 238 [2023-11-12 02:19:00,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:01,348 INFO L124 PetriNetUnfolderBase]: 1306/2135 cut-off events. [2023-11-12 02:19:01,363 INFO L125 PetriNetUnfolderBase]: For 9997/10118 co-relation queries the response was YES. [2023-11-12 02:19:01,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9209 conditions, 2135 events. 1306/2135 cut-off events. For 9997/10118 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11269 event pairs, 240 based on Foata normal form. 80/2179 useless extension candidates. Maximal degree in co-relation 9193. Up to 1107 conditions per place. [2023-11-12 02:19:01,394 INFO L140 encePairwiseOnDemand]: 230/238 looper letters, 53 selfloop transitions, 28 changer transitions 14/99 dead transitions. [2023-11-12 02:19:01,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 99 transitions, 973 flow [2023-11-12 02:19:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:19:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:19:01,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 773 transitions. [2023-11-12 02:19:01,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4639855942376951 [2023-11-12 02:19:01,400 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 773 transitions. [2023-11-12 02:19:01,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 773 transitions. [2023-11-12 02:19:01,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:01,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 773 transitions. [2023-11-12 02:19:01,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 110.42857142857143) internal successors, (773), 7 states have internal predecessors, (773), 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 02:19:01,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:19:01,409 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:19:01,410 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 459 flow. Second operand 7 states and 773 transitions. [2023-11-12 02:19:01,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 99 transitions, 973 flow [2023-11-12 02:19:01,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 99 transitions, 921 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-11-12 02:19:01,441 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 567 flow [2023-11-12 02:19:01,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=567, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2023-11-12 02:19:01,442 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 19 predicate places. [2023-11-12 02:19:01,442 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 567 flow [2023-11-12 02:19:01,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 103.85714285714286) internal successors, (727), 7 states have internal predecessors, (727), 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 02:19:01,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:01,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:01,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:19:01,443 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:01,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:01,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1129725530, now seen corresponding path program 1 times [2023-11-12 02:19:01,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:01,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717230733] [2023-11-12 02:19:01,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:01,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:02,045 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 02:19:02,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:02,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717230733] [2023-11-12 02:19:02,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717230733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:02,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:02,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:19:02,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39092041] [2023-11-12 02:19:02,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:02,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:19:02,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:02,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:19:02,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:19:02,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 238 [2023-11-12 02:19:02,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 567 flow. Second operand has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 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 02:19:02,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:02,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 238 [2023-11-12 02:19:02,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:02,753 INFO L124 PetriNetUnfolderBase]: 1345/2200 cut-off events. [2023-11-12 02:19:02,753 INFO L125 PetriNetUnfolderBase]: For 13913/14000 co-relation queries the response was YES. [2023-11-12 02:19:02,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10190 conditions, 2200 events. 1345/2200 cut-off events. For 13913/14000 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11731 event pairs, 253 based on Foata normal form. 54/2218 useless extension candidates. Maximal degree in co-relation 10172. Up to 1449 conditions per place. [2023-11-12 02:19:02,777 INFO L140 encePairwiseOnDemand]: 230/238 looper letters, 60 selfloop transitions, 21 changer transitions 3/88 dead transitions. [2023-11-12 02:19:02,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 88 transitions, 950 flow [2023-11-12 02:19:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:19:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:19:02,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2023-11-12 02:19:02,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46288515406162467 [2023-11-12 02:19:02,781 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 661 transitions. [2023-11-12 02:19:02,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 661 transitions. [2023-11-12 02:19:02,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:02,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 661 transitions. [2023-11-12 02:19:02,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 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 02:19:02,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:19:02,788 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 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 02:19:02,788 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 567 flow. Second operand 6 states and 661 transitions. [2023-11-12 02:19:02,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 88 transitions, 950 flow [2023-11-12 02:19:02,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 88 transitions, 880 flow, removed 19 selfloop flow, removed 4 redundant places. [2023-11-12 02:19:02,838 INFO L231 Difference]: Finished difference. Result has 62 places, 62 transitions, 645 flow [2023-11-12 02:19:02,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=645, PETRI_PLACES=62, PETRI_TRANSITIONS=62} [2023-11-12 02:19:02,839 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 21 predicate places. [2023-11-12 02:19:02,840 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 62 transitions, 645 flow [2023-11-12 02:19:02,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 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 02:19:02,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:02,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:02,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:19:02,841 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:02,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:02,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1606778456, now seen corresponding path program 2 times [2023-11-12 02:19:02,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:02,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907217847] [2023-11-12 02:19:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:02,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:03,537 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 02:19:03,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:03,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907217847] [2023-11-12 02:19:03,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907217847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:03,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:03,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:19:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895287909] [2023-11-12 02:19:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:03,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:19:03,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:19:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:19:03,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 238 [2023-11-12 02:19:03,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 62 transitions, 645 flow. Second operand has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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 02:19:03,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:03,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 238 [2023-11-12 02:19:03,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:04,308 INFO L124 PetriNetUnfolderBase]: 1314/2170 cut-off events. [2023-11-12 02:19:04,309 INFO L125 PetriNetUnfolderBase]: For 12881/12968 co-relation queries the response was YES. [2023-11-12 02:19:04,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9908 conditions, 2170 events. 1314/2170 cut-off events. For 12881/12968 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 11653 event pairs, 233 based on Foata normal form. 54/2191 useless extension candidates. Maximal degree in co-relation 9889. Up to 854 conditions per place. [2023-11-12 02:19:04,342 INFO L140 encePairwiseOnDemand]: 230/238 looper letters, 59 selfloop transitions, 27 changer transitions 8/98 dead transitions. [2023-11-12 02:19:04,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 98 transitions, 1036 flow [2023-11-12 02:19:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:19:04,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:19:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 755 transitions. [2023-11-12 02:19:04,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4531812725090036 [2023-11-12 02:19:04,347 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 755 transitions. [2023-11-12 02:19:04,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 755 transitions. [2023-11-12 02:19:04,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:04,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 755 transitions. [2023-11-12 02:19:04,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 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 02:19:04,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:19:04,356 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:19:04,356 INFO L175 Difference]: Start difference. First operand has 62 places, 62 transitions, 645 flow. Second operand 7 states and 755 transitions. [2023-11-12 02:19:04,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 98 transitions, 1036 flow [2023-11-12 02:19:04,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 98 transitions, 959 flow, removed 23 selfloop flow, removed 4 redundant places. [2023-11-12 02:19:04,417 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 664 flow [2023-11-12 02:19:04,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=664, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2023-11-12 02:19:04,418 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 26 predicate places. [2023-11-12 02:19:04,418 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 664 flow [2023-11-12 02:19:04,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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 02:19:04,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:04,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:04,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:19:04,420 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:04,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:04,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1084793014, now seen corresponding path program 1 times [2023-11-12 02:19:04,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:04,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446451731] [2023-11-12 02:19:04,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:04,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:04,566 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 02:19:04,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:04,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446451731] [2023-11-12 02:19:04,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446451731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:04,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:04,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:04,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718217807] [2023-11-12 02:19:04,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:04,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:19:04,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:04,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:19:04,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:19:04,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 238 [2023-11-12 02:19:04,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 02:19:04,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:04,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 238 [2023-11-12 02:19:04,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:04,822 INFO L124 PetriNetUnfolderBase]: 655/1143 cut-off events. [2023-11-12 02:19:04,822 INFO L125 PetriNetUnfolderBase]: For 8354/8447 co-relation queries the response was YES. [2023-11-12 02:19:04,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5485 conditions, 1143 events. 655/1143 cut-off events. For 8354/8447 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5891 event pairs, 140 based on Foata normal form. 62/1175 useless extension candidates. Maximal degree in co-relation 5464. Up to 904 conditions per place. [2023-11-12 02:19:04,837 INFO L140 encePairwiseOnDemand]: 233/238 looper letters, 83 selfloop transitions, 4 changer transitions 1/95 dead transitions. [2023-11-12 02:19:04,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 95 transitions, 1203 flow [2023-11-12 02:19:04,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:19:04,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:19:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2023-11-12 02:19:04,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49299719887955185 [2023-11-12 02:19:04,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 352 transitions. [2023-11-12 02:19:04,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions. [2023-11-12 02:19:04,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:04,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions. [2023-11-12 02:19:04,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 02:19:04,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 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 02:19:04,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 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 02:19:04,844 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 664 flow. Second operand 3 states and 352 transitions. [2023-11-12 02:19:04,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 95 transitions, 1203 flow [2023-11-12 02:19:04,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 95 transitions, 1129 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-11-12 02:19:04,865 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 602 flow [2023-11-12 02:19:04,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2023-11-12 02:19:04,866 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 22 predicate places. [2023-11-12 02:19:04,866 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 602 flow [2023-11-12 02:19:04,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 02:19:04,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:04,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:04,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:19:04,867 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:04,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:04,868 INFO L85 PathProgramCache]: Analyzing trace with hash 116821798, now seen corresponding path program 1 times [2023-11-12 02:19:04,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:04,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706833232] [2023-11-12 02:19:04,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:04,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:05,010 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 02:19:05,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:05,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706833232] [2023-11-12 02:19:05,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706833232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:05,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:05,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:19:05,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611291068] [2023-11-12 02:19:05,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:05,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:19:05,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:05,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:19:05,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:19:05,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 238 [2023-11-12 02:19:05,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 602 flow. Second operand has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 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 02:19:05,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:05,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 238 [2023-11-12 02:19:05,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:05,188 INFO L124 PetriNetUnfolderBase]: 304/589 cut-off events. [2023-11-12 02:19:05,188 INFO L125 PetriNetUnfolderBase]: For 3431/3484 co-relation queries the response was YES. [2023-11-12 02:19:05,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 589 events. 304/589 cut-off events. For 3431/3484 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2799 event pairs, 54 based on Foata normal form. 84/659 useless extension candidates. Maximal degree in co-relation 2853. Up to 237 conditions per place. [2023-11-12 02:19:05,195 INFO L140 encePairwiseOnDemand]: 233/238 looper letters, 91 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2023-11-12 02:19:05,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 105 transitions, 1250 flow [2023-11-12 02:19:05,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:19:05,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:19:05,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2023-11-12 02:19:05,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49264705882352944 [2023-11-12 02:19:05,199 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 469 transitions. [2023-11-12 02:19:05,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 469 transitions. [2023-11-12 02:19:05,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:05,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 469 transitions. [2023-11-12 02:19:05,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:05,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 238.0) internal successors, (1190), 5 states have internal predecessors, (1190), 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 02:19:05,204 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 238.0) internal successors, (1190), 5 states have internal predecessors, (1190), 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 02:19:05,204 INFO L175 Difference]: Start difference. First operand has 63 places, 62 transitions, 602 flow. Second operand 4 states and 469 transitions. [2023-11-12 02:19:05,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 105 transitions, 1250 flow [2023-11-12 02:19:05,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 105 transitions, 1196 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-11-12 02:19:05,215 INFO L231 Difference]: Finished difference. Result has 61 places, 58 transitions, 541 flow [2023-11-12 02:19:05,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=541, PETRI_PLACES=61, PETRI_TRANSITIONS=58} [2023-11-12 02:19:05,216 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 20 predicate places. [2023-11-12 02:19:05,216 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 58 transitions, 541 flow [2023-11-12 02:19:05,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 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 02:19:05,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:05,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:05,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 02:19:05,218 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:05,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:05,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1087707200, now seen corresponding path program 1 times [2023-11-12 02:19:05,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:05,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738419437] [2023-11-12 02:19:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:05,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:05,661 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 02:19:05,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:05,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738419437] [2023-11-12 02:19:05,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738419437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:05,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:05,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:19:05,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991077532] [2023-11-12 02:19:05,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:05,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:19:05,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:05,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:19:05,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:19:05,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 238 [2023-11-12 02:19:05,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 58 transitions, 541 flow. Second operand has 6 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 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 02:19:05,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:05,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 238 [2023-11-12 02:19:05,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:06,235 INFO L124 PetriNetUnfolderBase]: 503/965 cut-off events. [2023-11-12 02:19:06,235 INFO L125 PetriNetUnfolderBase]: For 4560/4613 co-relation queries the response was YES. [2023-11-12 02:19:06,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4847 conditions, 965 events. 503/965 cut-off events. For 4560/4613 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4943 event pairs, 21 based on Foata normal form. 28/992 useless extension candidates. Maximal degree in co-relation 4827. Up to 365 conditions per place. [2023-11-12 02:19:06,244 INFO L140 encePairwiseOnDemand]: 227/238 looper letters, 64 selfloop transitions, 17 changer transitions 64/148 dead transitions. [2023-11-12 02:19:06,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 148 transitions, 1625 flow [2023-11-12 02:19:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:19:06,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:19:06,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 736 transitions. [2023-11-12 02:19:06,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4417767106842737 [2023-11-12 02:19:06,248 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 736 transitions. [2023-11-12 02:19:06,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 736 transitions. [2023-11-12 02:19:06,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:06,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 736 transitions. [2023-11-12 02:19:06,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 105.14285714285714) internal successors, (736), 7 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 02:19:06,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:19:06,258 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 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 02:19:06,258 INFO L175 Difference]: Start difference. First operand has 61 places, 58 transitions, 541 flow. Second operand 7 states and 736 transitions. [2023-11-12 02:19:06,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 148 transitions, 1625 flow [2023-11-12 02:19:06,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 148 transitions, 1579 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-11-12 02:19:06,276 INFO L231 Difference]: Finished difference. Result has 70 places, 54 transitions, 548 flow [2023-11-12 02:19:06,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=548, PETRI_PLACES=70, PETRI_TRANSITIONS=54} [2023-11-12 02:19:06,277 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 29 predicate places. [2023-11-12 02:19:06,277 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 54 transitions, 548 flow [2023-11-12 02:19:06,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 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 02:19:06,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:06,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:06,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-12 02:19:06,278 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:06,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash 720662312, now seen corresponding path program 2 times [2023-11-12 02:19:06,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:06,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959500740] [2023-11-12 02:19:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:06,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:06,466 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 02:19:06,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:06,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959500740] [2023-11-12 02:19:06,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959500740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:06,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:06,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:19:06,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799101469] [2023-11-12 02:19:06,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:06,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:19:06,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:06,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:19:06,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:19:06,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 238 [2023-11-12 02:19:06,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 54 transitions, 548 flow. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 02:19:06,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:06,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 238 [2023-11-12 02:19:06,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:06,680 INFO L124 PetriNetUnfolderBase]: 268/582 cut-off events. [2023-11-12 02:19:06,680 INFO L125 PetriNetUnfolderBase]: For 3831/3849 co-relation queries the response was YES. [2023-11-12 02:19:06,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3082 conditions, 582 events. 268/582 cut-off events. For 3831/3849 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2937 event pairs, 77 based on Foata normal form. 24/601 useless extension candidates. Maximal degree in co-relation 3057. Up to 281 conditions per place. [2023-11-12 02:19:06,686 INFO L140 encePairwiseOnDemand]: 234/238 looper letters, 45 selfloop transitions, 4 changer transitions 28/81 dead transitions. [2023-11-12 02:19:06,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 81 transitions, 933 flow [2023-11-12 02:19:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:19:06,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:19:06,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 556 transitions. [2023-11-12 02:19:06,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4672268907563025 [2023-11-12 02:19:06,689 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 556 transitions. [2023-11-12 02:19:06,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 556 transitions. [2023-11-12 02:19:06,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:06,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 556 transitions. [2023-11-12 02:19:06,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 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 02:19:06,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 02:19:06,695 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 02:19:06,696 INFO L175 Difference]: Start difference. First operand has 70 places, 54 transitions, 548 flow. Second operand 5 states and 556 transitions. [2023-11-12 02:19:06,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 81 transitions, 933 flow [2023-11-12 02:19:06,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 81 transitions, 872 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-12 02:19:06,708 INFO L231 Difference]: Finished difference. Result has 68 places, 45 transitions, 399 flow [2023-11-12 02:19:06,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=399, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2023-11-12 02:19:06,709 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2023-11-12 02:19:06,709 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 45 transitions, 399 flow [2023-11-12 02:19:06,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 02:19:06,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:06,710 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 02:19:06,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-12 02:19:06,710 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:06,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:06,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1385619549, now seen corresponding path program 1 times [2023-11-12 02:19:06,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:06,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342115595] [2023-11-12 02:19:06,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:06,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:06,892 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 02:19:06,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:06,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342115595] [2023-11-12 02:19:06,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342115595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:06,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:06,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:19:06,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767011789] [2023-11-12 02:19:06,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:06,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:19:06,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:06,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:19:06,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:19:06,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 238 [2023-11-12 02:19:06,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 45 transitions, 399 flow. Second operand has 5 states, 5 states have (on average 110.2) internal successors, (551), 5 states have internal predecessors, (551), 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 02:19:06,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:06,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 238 [2023-11-12 02:19:06,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:07,043 INFO L124 PetriNetUnfolderBase]: 138/330 cut-off events. [2023-11-12 02:19:07,043 INFO L125 PetriNetUnfolderBase]: For 1586/1596 co-relation queries the response was YES. [2023-11-12 02:19:07,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 330 events. 138/330 cut-off events. For 1586/1596 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1667 event pairs, 25 based on Foata normal form. 31/355 useless extension candidates. Maximal degree in co-relation 1467. Up to 120 conditions per place. [2023-11-12 02:19:07,046 INFO L140 encePairwiseOnDemand]: 233/238 looper letters, 32 selfloop transitions, 10 changer transitions 20/66 dead transitions. [2023-11-12 02:19:07,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 711 flow [2023-11-12 02:19:07,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:19:07,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:19:07,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 573 transitions. [2023-11-12 02:19:07,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4815126050420168 [2023-11-12 02:19:07,050 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 573 transitions. [2023-11-12 02:19:07,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 573 transitions. [2023-11-12 02:19:07,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:07,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 573 transitions. [2023-11-12 02:19:07,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 02:19:07,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 02:19:07,058 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 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 02:19:07,058 INFO L175 Difference]: Start difference. First operand has 68 places, 45 transitions, 399 flow. Second operand 5 states and 573 transitions. [2023-11-12 02:19:07,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 711 flow [2023-11-12 02:19:07,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 617 flow, removed 27 selfloop flow, removed 8 redundant places. [2023-11-12 02:19:07,066 INFO L231 Difference]: Finished difference. Result has 63 places, 33 transitions, 245 flow [2023-11-12 02:19:07,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=245, PETRI_PLACES=63, PETRI_TRANSITIONS=33} [2023-11-12 02:19:07,067 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 22 predicate places. [2023-11-12 02:19:07,067 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 33 transitions, 245 flow [2023-11-12 02:19:07,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.2) internal successors, (551), 5 states have internal predecessors, (551), 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 02:19:07,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:07,085 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] [2023-11-12 02:19:07,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-12 02:19:07,085 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-12 02:19:07,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:07,085 INFO L85 PathProgramCache]: Analyzing trace with hash 902593500, now seen corresponding path program 1 times [2023-11-12 02:19:07,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:07,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201327060] [2023-11-12 02:19:07,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:07,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:19:07,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:19:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:19:07,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:19:07,277 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:19:07,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-11-12 02:19:07,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2023-11-12 02:19:07,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-11-12 02:19:07,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-11-12 02:19:07,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-11-12 02:19:07,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-11-12 02:19:07,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-11-12 02:19:07,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2023-11-12 02:19:07,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2023-11-12 02:19:07,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-11-12 02:19:07,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-11-12 02:19:07,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-11-12 02:19:07,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-11-12 02:19:07,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-12 02:19:07,284 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:07,291 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:19:07,291 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:19:07,366 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre3 could not be translated [2023-11-12 02:19:07,368 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-12 02:19:07,371 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-12 02:19:07,387 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-12 02:19:07,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:19:07 BasicIcfg [2023-11-12 02:19:07,404 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:19:07,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:19:07,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:19:07,405 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:19:07,406 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:41" (3/4) ... [2023-11-12 02:19:07,407 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:19:07,409 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:19:07,410 INFO L158 Benchmark]: Toolchain (without parser) took 27868.73ms. Allocated memory was 127.9MB in the beginning and 371.2MB in the end (delta: 243.3MB). Free memory was 95.4MB in the beginning and 126.8MB in the end (delta: -31.4MB). Peak memory consumption was 213.3MB. Max. memory is 16.1GB. [2023-11-12 02:19:07,410 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 94.4MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:07,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 862.51ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 72.3MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 02:19:07,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.29ms. Allocated memory is still 127.9MB. Free memory was 72.3MB in the beginning and 69.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:19:07,411 INFO L158 Benchmark]: Boogie Preprocessor took 84.57ms. Allocated memory is still 127.9MB. Free memory was 69.5MB in the beginning and 67.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:19:07,412 INFO L158 Benchmark]: RCFGBuilder took 1070.07ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 67.4MB in the beginning and 110.6MB in the end (delta: -43.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-11-12 02:19:07,412 INFO L158 Benchmark]: TraceAbstraction took 25714.54ms. Allocated memory was 159.4MB in the beginning and 371.2MB in the end (delta: 211.8MB). Free memory was 109.8MB in the beginning and 126.8MB in the end (delta: -17.0MB). Peak memory consumption was 195.5MB. Max. memory is 16.1GB. [2023-11-12 02:19:07,412 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 371.2MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:07,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 94.4MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 862.51ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 72.3MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.29ms. Allocated memory is still 127.9MB. Free memory was 72.3MB in the beginning and 69.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.57ms. Allocated memory is still 127.9MB. Free memory was 69.5MB in the beginning and 67.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1070.07ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 67.4MB in the beginning and 110.6MB in the end (delta: -43.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * TraceAbstraction took 25714.54ms. Allocated memory was 159.4MB in the beginning and 371.2MB in the end (delta: 211.8MB). Free memory was 109.8MB in the beginning and 126.8MB in the end (delta: -17.0MB). Peak memory consumption was 195.5MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 371.2MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9s, 128 PlacesBefore, 41 PlacesAfterwards, 121 TransitionsBefore, 32 TransitionsAfterwards, 2356 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 114 TotalNumberOfCompositions, 5925 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2388, independent: 2212, independent conditional: 0, independent unconditional: 2212, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1220, independent: 1186, independent conditional: 0, independent unconditional: 1186, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2388, independent: 1026, independent conditional: 0, independent unconditional: 1026, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 1220, unknown conditional: 0, unknown unconditional: 1220] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L735] 0 int z = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L813] 0 pthread_t t1492; [L814] FCALL, FORK 0 pthread_create(&t1492, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1492={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L815] 0 pthread_t t1493; [L816] FCALL, FORK 0 pthread_create(&t1493, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L817] 0 pthread_t t1494; [L818] FCALL, FORK 0 pthread_create(&t1494, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L776] 3 y$w_buff1 = y$w_buff0 [L777] 3 y$w_buff0 = 2 [L778] 3 y$w_buff1_used = y$w_buff0_used [L779] 3 y$w_buff0_used = (_Bool)1 [L780] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L780] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L781] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L782] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L783] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L784] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L785] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L788] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L741] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L756] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L759] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L762] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L763] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L764] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L765] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L766] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 1 return 0; [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2, z=1] [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 3 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L822] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L822] RET 0 assume_abort_if_not(main$tmp_guard0) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2, z=1] [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L846] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 814]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 149 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 25.4s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 888 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 646 mSDsluCounter, 668 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 526 mSDsCounter, 204 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2347 IncrementalHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 204 mSolverCounterUnsat, 142 mSDtfsCounter, 2347 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=664occurred in iteration=13, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 1795 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:19:07,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/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_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/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 0a03a5fc32da65217c1f578a6fea0c2c0e07a09fd6b8159429f8d1aa4c1c45a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:19:10,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:19:10,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:19:10,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:19:10,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:19:10,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:19:10,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:19:10,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:19:10,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:19:10,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:19:10,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:19:10,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:19:10,237 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:19:10,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:19:10,239 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:19:10,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:19:10,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:19:10,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:19:10,241 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:19:10,242 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:19:10,243 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:19:10,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:19:10,244 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:19:10,244 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:19:10,244 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:19:10,245 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:19:10,245 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:19:10,246 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:19:10,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:19:10,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:19:10,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:19:10,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:10,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:19:10,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:19:10,250 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:19:10,250 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:19:10,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:19:10,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:19:10,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:19:10,252 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:19:10,253 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:19:10,253 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_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a03a5fc32da65217c1f578a6fea0c2c0e07a09fd6b8159429f8d1aa4c1c45a8 [2023-11-12 02:19:10,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:19:10,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:19:10,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:19:10,681 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:19:10,681 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:19:10,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:19:14,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:19:14,869 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:19:14,870 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:19:14,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/data/becc15d92/476fcca5d65e4924bd67eb7afb4f2061/FLAG0ede9fb64 [2023-11-12 02:19:14,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/data/becc15d92/476fcca5d65e4924bd67eb7afb4f2061 [2023-11-12 02:19:14,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:19:14,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:19:14,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:14,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:19:14,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:19:14,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:14" (1/1) ... [2023-11-12 02:19:14,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39299258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:14, skipping insertion in model container [2023-11-12 02:19:14,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:14" (1/1) ... [2023-11-12 02:19:15,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:19:15,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:15,637 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:19:15,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:15,762 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:19:15,766 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:19:15,776 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:19:15,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15 WrapperNode [2023-11-12 02:19:15,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:15,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:15,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:19:15,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:19:15,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,890 INFO L138 Inliner]: procedures = 179, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-11-12 02:19:15,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:15,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:19:15,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:19:15,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:19:15,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:15,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:19:15,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:19:15,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:19:15,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:19:15,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (1/1) ... [2023-11-12 02:19:16,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:16,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:16,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:19:16,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec656c7-b18a-4a88-9dee-21bc27b7d0c4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:19:16,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:19:16,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:19:16,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:19:16,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:19:16,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:19:16,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:19:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:19:16,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:19:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:19:16,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:19:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:19:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:19:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:19:16,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:19:16,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:19:16,107 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 02:19:16,409 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:19:16,412 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:19:16,960 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:19:17,176 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:19:17,176 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:19:17,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:17 BoogieIcfgContainer [2023-11-12 02:19:17,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:19:17,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:19:17,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:19:17,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:19:17,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:19:14" (1/3) ... [2023-11-12 02:19:17,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413440f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:17, skipping insertion in model container [2023-11-12 02:19:17,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:15" (2/3) ... [2023-11-12 02:19:17,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413440f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:17, skipping insertion in model container [2023-11-12 02:19:17,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:17" (3/3) ... [2023-11-12 02:19:17,188 INFO L112 eAbstractionObserver]: Analyzing ICFG mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:19:17,207 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:19:17,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-12 02:19:17,208 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:19:17,277 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:19:17,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 125 transitions, 262 flow [2023-11-12 02:19:17,405 INFO L124 PetriNetUnfolderBase]: 3/122 cut-off events. [2023-11-12 02:19:17,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:17,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 3/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-12 02:19:17,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 125 transitions, 262 flow [2023-11-12 02:19:17,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 122 transitions, 253 flow [2023-11-12 02:19:17,434 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:19:17,453 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 122 transitions, 253 flow [2023-11-12 02:19:17,463 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 122 transitions, 253 flow [2023-11-12 02:19:17,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 122 transitions, 253 flow [2023-11-12 02:19:17,535 INFO L124 PetriNetUnfolderBase]: 3/122 cut-off events. [2023-11-12 02:19:17,535 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:17,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 3/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-12 02:19:17,542 INFO L119 LiptonReduction]: Number of co-enabled transitions 2356