./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/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_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/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_c184824a-58cc-43c8-908f-efa5eced22dd/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 ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:31:51,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:31:51,441 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:31:51,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:31:51,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:31:51,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:31:51,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:31:51,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:31:51,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:31:51,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:31:51,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:31:51,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:31:51,517 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:31:51,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:31:51,520 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:31:51,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:31:51,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:31:51,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:31:51,522 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:31:51,523 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:31:51,523 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:31:51,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:31:51,524 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:31:51,525 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:31:51,525 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:31:51,526 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:31:51,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:31:51,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:31:51,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:31:51,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:51,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:31:51,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:31:51,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:31:51,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:31:51,530 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:31:51,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:31:51,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:31:51,530 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:31:51,531 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_c184824a-58cc-43c8-908f-efa5eced22dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 [2023-11-12 02:31:51,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:31:51,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:31:51,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:31:51,911 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:31:51,912 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:31:51,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-12 02:31:55,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:31:55,638 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:31:55,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-12 02:31:55,654 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/data/6fabe4ffb/23e652fa67234e90bee0872da76ec897/FLAG162227dfd [2023-11-12 02:31:55,669 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/data/6fabe4ffb/23e652fa67234e90bee0872da76ec897 [2023-11-12 02:31:55,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:31:55,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:31:55,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:55,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:31:55,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:31:55,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:55" (1/1) ... [2023-11-12 02:31:55,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6deebf55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:55, skipping insertion in model container [2023-11-12 02:31:55,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:55" (1/1) ... [2023-11-12 02:31:55,764 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:31:56,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:56,286 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:31:56,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:56,459 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:31:56,460 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:31:56,470 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:31:56,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56 WrapperNode [2023-11-12 02:31:56,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:56,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:56,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:31:56,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:31:56,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,570 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 141 [2023-11-12 02:31:56,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:56,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:31:56,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:31:56,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:31:56,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:31:56,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:31:56,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:31:56,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:31:56,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (1/1) ... [2023-11-12 02:31:56,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:56,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:56,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:31:56,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:31:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:31:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:31:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:31:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:31:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:31:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:31:56,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:31:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:31:56,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:31:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:31:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:31:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:31:56,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:31:56,767 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 02:31:57,042 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:31:57,048 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:31:57,517 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:31:57,810 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:31:57,810 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:31:57,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:57 BoogieIcfgContainer [2023-11-12 02:31:57,814 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:31:57,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:31:57,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:31:57,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:31:57,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:31:55" (1/3) ... [2023-11-12 02:31:57,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e520e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:57, skipping insertion in model container [2023-11-12 02:31:57,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:56" (2/3) ... [2023-11-12 02:31:57,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e520e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:57, skipping insertion in model container [2023-11-12 02:31:57,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:57" (3/3) ... [2023-11-12 02:31:57,827 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-12 02:31:57,852 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:31:57,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-12 02:31:57,853 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:31:57,936 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:31:57,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 220 flow [2023-11-12 02:31:58,101 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2023-11-12 02:31:58,103 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:31:58,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-11-12 02:31:58,109 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 106 transitions, 220 flow [2023-11-12 02:31:58,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 104 transitions, 214 flow [2023-11-12 02:31:58,121 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:31:58,135 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 104 transitions, 214 flow [2023-11-12 02:31:58,138 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 104 transitions, 214 flow [2023-11-12 02:31:58,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 214 flow [2023-11-12 02:31:58,176 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2023-11-12 02:31:58,176 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:31:58,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-11-12 02:31:58,181 INFO L119 LiptonReduction]: Number of co-enabled transitions 1592 [2023-11-12 02:32:06,603 INFO L134 LiptonReduction]: Checked pairs total: 4329 [2023-11-12 02:32:06,603 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-11-12 02:32:06,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:32:06,652 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;@4e9188ca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:32:06,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-12 02:32:06,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:32:06,654 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:32:06,655 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:06,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:06,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:32:06,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:06,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 495, now seen corresponding path program 1 times [2023-11-12 02:32:06,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:06,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898685581] [2023-11-12 02:32:06,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:06,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:06,842 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 02:32:06,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:06,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898685581] [2023-11-12 02:32:06,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898685581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:06,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:06,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:32:06,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093324143] [2023-11-12 02:32:06,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:06,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:32:06,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:06,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:32:06,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:32:06,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 215 [2023-11-12 02:32:06,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states 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 02:32:06,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:06,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 215 [2023-11-12 02:32:06,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:07,194 INFO L124 PetriNetUnfolderBase]: 173/313 cut-off events. [2023-11-12 02:32:07,194 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:32:07,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 313 events. 173/313 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1277 event pairs, 173 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 619. Up to 303 conditions per place. [2023-11-12 02:32:07,200 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 16 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-11-12 02:32:07,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 78 flow [2023-11-12 02:32:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:32:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:32:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 209 transitions. [2023-11-12 02:32:07,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48604651162790696 [2023-11-12 02:32:07,218 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 209 transitions. [2023-11-12 02:32:07,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 209 transitions. [2023-11-12 02:32:07,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:07,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 209 transitions. [2023-11-12 02:32:07,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 02:32:07,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states 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 02:32:07,233 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states 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 02:32:07,235 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 56 flow. Second operand 2 states and 209 transitions. [2023-11-12 02:32:07,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 78 flow [2023-11-12 02:32:07,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:32:07,240 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 44 flow [2023-11-12 02:32:07,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-11-12 02:32:07,245 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-11-12 02:32:07,246 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 44 flow [2023-11-12 02:32:07,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states 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 02:32:07,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:07,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:32:07,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:32:07,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:07,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:07,248 INFO L85 PathProgramCache]: Analyzing trace with hash 469198571, now seen corresponding path program 1 times [2023-11-12 02:32:07,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:07,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140836430] [2023-11-12 02:32:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:07,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:07,684 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 02:32:07,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:07,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140836430] [2023-11-12 02:32:07,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140836430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:07,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:07,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:32:07,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171576743] [2023-11-12 02:32:07,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:07,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:32:07,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:07,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:32:07,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:32:07,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 215 [2023-11-12 02:32:07,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states 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 02:32:07,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:07,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 215 [2023-11-12 02:32:07,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:07,860 INFO L124 PetriNetUnfolderBase]: 135/314 cut-off events. [2023-11-12 02:32:07,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:07,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 314 events. 135/314 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1516 event pairs, 21 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 564. Up to 187 conditions per place. [2023-11-12 02:32:07,865 INFO L140 encePairwiseOnDemand]: 212/215 looper letters, 19 selfloop transitions, 2 changer transitions 2/27 dead transitions. [2023-11-12 02:32:07,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 104 flow [2023-11-12 02:32:07,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:32:07,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:32:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2023-11-12 02:32:07,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4697674418604651 [2023-11-12 02:32:07,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2023-11-12 02:32:07,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2023-11-12 02:32:07,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:07,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2023-11-12 02:32:07,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states 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 02:32:07,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 02:32:07,877 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 02:32:07,877 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 44 flow. Second operand 3 states and 303 transitions. [2023-11-12 02:32:07,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 104 flow [2023-11-12 02:32:07,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 104 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:32:07,879 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-11-12 02:32:07,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-11-12 02:32:07,881 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2023-11-12 02:32:07,881 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-11-12 02:32:07,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states 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 02:32:07,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:07,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:07,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:32:07,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:07,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:07,884 INFO L85 PathProgramCache]: Analyzing trace with hash -71690708, now seen corresponding path program 1 times [2023-11-12 02:32:07,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:07,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538369488] [2023-11-12 02:32:07,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:07,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:08,373 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 02:32:08,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538369488] [2023-11-12 02:32:08,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538369488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:08,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:08,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:32:08,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468357580] [2023-11-12 02:32:08,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:08,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:08,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:08,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:08,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:08,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 215 [2023-11-12 02:32:08,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states 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 02:32:08,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:08,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 215 [2023-11-12 02:32:08,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:08,669 INFO L124 PetriNetUnfolderBase]: 111/217 cut-off events. [2023-11-12 02:32:08,669 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-12 02:32:08,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 217 events. 111/217 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 801 event pairs, 48 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 444. Up to 195 conditions per place. [2023-11-12 02:32:08,673 INFO L140 encePairwiseOnDemand]: 212/215 looper letters, 15 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2023-11-12 02:32:08,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 82 flow [2023-11-12 02:32:08,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:32:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:32:08,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 346 transitions. [2023-11-12 02:32:08,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40232558139534885 [2023-11-12 02:32:08,677 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 346 transitions. [2023-11-12 02:32:08,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 346 transitions. [2023-11-12 02:32:08,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:08,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 346 transitions. [2023-11-12 02:32:08,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states 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 02:32:08,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states 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 02:32:08,688 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states 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 02:32:08,689 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 4 states and 346 transitions. [2023-11-12 02:32:08,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 82 flow [2023-11-12 02:32:08,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:32:08,691 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 42 flow [2023-11-12 02:32:08,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-11-12 02:32:08,693 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-11-12 02:32:08,694 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 42 flow [2023-11-12 02:32:08,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states 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 02:32:08,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:08,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:08,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:32:08,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:08,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:08,703 INFO L85 PathProgramCache]: Analyzing trace with hash -71690721, now seen corresponding path program 1 times [2023-11-12 02:32:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:08,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238000987] [2023-11-12 02:32:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:09,435 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 02:32:09,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:09,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238000987] [2023-11-12 02:32:09,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238000987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:09,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:09,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:32:09,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087486944] [2023-11-12 02:32:09,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:09,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:09,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:09,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:09,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:09,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 215 [2023-11-12 02:32:09,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:32:09,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:09,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 215 [2023-11-12 02:32:09,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:09,667 INFO L124 PetriNetUnfolderBase]: 144/263 cut-off events. [2023-11-12 02:32:09,668 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:32:09,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 263 events. 144/263 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 901 event pairs, 67 based on Foata normal form. 20/282 useless extension candidates. Maximal degree in co-relation 537. Up to 121 conditions per place. [2023-11-12 02:32:09,671 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 21 selfloop transitions, 6 changer transitions 0/28 dead transitions. [2023-11-12 02:32:09,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 28 transitions, 118 flow [2023-11-12 02:32:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:32:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:32:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2023-11-12 02:32:09,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4197674418604651 [2023-11-12 02:32:09,675 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 361 transitions. [2023-11-12 02:32:09,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 361 transitions. [2023-11-12 02:32:09,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:09,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 361 transitions. [2023-11-12 02:32:09,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:32:09,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states 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 02:32:09,682 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states 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 02:32:09,682 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 42 flow. Second operand 4 states and 361 transitions. [2023-11-12 02:32:09,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 28 transitions, 118 flow [2023-11-12 02:32:09,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 115 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:32:09,684 INFO L231 Difference]: Finished difference. Result has 29 places, 21 transitions, 78 flow [2023-11-12 02:32:09,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2023-11-12 02:32:09,686 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2023-11-12 02:32:09,686 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 78 flow [2023-11-12 02:32:09,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:32:09,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:09,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:09,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:32:09,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:09,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:09,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2073662314, now seen corresponding path program 1 times [2023-11-12 02:32:09,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:09,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028847614] [2023-11-12 02:32:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:09,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:10,265 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 02:32:10,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:10,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028847614] [2023-11-12 02:32:10,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028847614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:10,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:10,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:32:10,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767998243] [2023-11-12 02:32:10,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:10,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:10,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:10,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:10,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:10,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 215 [2023-11-12 02:32:10,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states 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 02:32:10,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:10,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 215 [2023-11-12 02:32:10,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:10,533 INFO L124 PetriNetUnfolderBase]: 210/397 cut-off events. [2023-11-12 02:32:10,533 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-11-12 02:32:10,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 397 events. 210/397 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1743 event pairs, 39 based on Foata normal form. 12/409 useless extension candidates. Maximal degree in co-relation 1074. Up to 194 conditions per place. [2023-11-12 02:32:10,537 INFO L140 encePairwiseOnDemand]: 205/215 looper letters, 22 selfloop transitions, 12 changer transitions 7/42 dead transitions. [2023-11-12 02:32:10,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 42 transitions, 236 flow [2023-11-12 02:32:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:32:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:32:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2023-11-12 02:32:10,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42790697674418604 [2023-11-12 02:32:10,541 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 368 transitions. [2023-11-12 02:32:10,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 368 transitions. [2023-11-12 02:32:10,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:10,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 368 transitions. [2023-11-12 02:32:10,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:32:10,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states 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 02:32:10,548 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states 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 02:32:10,548 INFO L175 Difference]: Start difference. First operand has 29 places, 21 transitions, 78 flow. Second operand 4 states and 368 transitions. [2023-11-12 02:32:10,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 42 transitions, 236 flow [2023-11-12 02:32:10,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:32:10,553 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 160 flow [2023-11-12 02:32:10,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2023-11-12 02:32:10,555 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2023-11-12 02:32:10,555 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 160 flow [2023-11-12 02:32:10,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states 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 02:32:10,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:10,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:10,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:32:10,557 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:10,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:10,557 INFO L85 PathProgramCache]: Analyzing trace with hash -270062058, now seen corresponding path program 1 times [2023-11-12 02:32:10,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:10,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814410619] [2023-11-12 02:32:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:10,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:11,197 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 02:32:11,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:11,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814410619] [2023-11-12 02:32:11,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814410619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:11,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:11,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:32:11,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997532822] [2023-11-12 02:32:11,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:11,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:32:11,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:11,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:32:11,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:11,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 215 [2023-11-12 02:32:11,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states 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 02:32:11,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:11,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 215 [2023-11-12 02:32:11,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:11,359 INFO L124 PetriNetUnfolderBase]: 118/219 cut-off events. [2023-11-12 02:32:11,359 INFO L125 PetriNetUnfolderBase]: For 292/321 co-relation queries the response was YES. [2023-11-12 02:32:11,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 219 events. 118/219 cut-off events. For 292/321 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 791 event pairs, 27 based on Foata normal form. 22/234 useless extension candidates. Maximal degree in co-relation 753. Up to 171 conditions per place. [2023-11-12 02:32:11,363 INFO L140 encePairwiseOnDemand]: 211/215 looper letters, 26 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2023-11-12 02:32:11,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 268 flow [2023-11-12 02:32:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:32:11,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:32:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2023-11-12 02:32:11,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4542635658914729 [2023-11-12 02:32:11,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2023-11-12 02:32:11,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2023-11-12 02:32:11,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:11,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2023-11-12 02:32:11,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states 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 02:32:11,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 02:32:11,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 02:32:11,374 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 160 flow. Second operand 3 states and 293 transitions. [2023-11-12 02:32:11,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 268 flow [2023-11-12 02:32:11,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:32:11,382 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 194 flow [2023-11-12 02:32:11,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2023-11-12 02:32:11,386 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-11-12 02:32:11,386 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 194 flow [2023-11-12 02:32:11,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states 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 02:32:11,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:11,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:11,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:32:11,388 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:11,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:11,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1379813170, now seen corresponding path program 1 times [2023-11-12 02:32:11,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:11,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948085386] [2023-11-12 02:32:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:11,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:11,885 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 02:32:11,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:11,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948085386] [2023-11-12 02:32:11,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948085386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:11,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:11,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:11,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278811493] [2023-11-12 02:32:11,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:11,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:32:11,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:11,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:32:11,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:11,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 215 [2023-11-12 02:32:11,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 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 02:32:11,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:11,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 215 [2023-11-12 02:32:11,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:12,285 INFO L124 PetriNetUnfolderBase]: 161/308 cut-off events. [2023-11-12 02:32:12,285 INFO L125 PetriNetUnfolderBase]: For 379/385 co-relation queries the response was YES. [2023-11-12 02:32:12,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1119 conditions, 308 events. 161/308 cut-off events. For 379/385 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1219 event pairs, 29 based on Foata normal form. 17/325 useless extension candidates. Maximal degree in co-relation 1109. Up to 140 conditions per place. [2023-11-12 02:32:12,288 INFO L140 encePairwiseOnDemand]: 205/215 looper letters, 19 selfloop transitions, 11 changer transitions 19/51 dead transitions. [2023-11-12 02:32:12,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 385 flow [2023-11-12 02:32:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:32:12,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:32:12,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 539 transitions. [2023-11-12 02:32:12,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4178294573643411 [2023-11-12 02:32:12,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 539 transitions. [2023-11-12 02:32:12,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 539 transitions. [2023-11-12 02:32:12,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:12,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 539 transitions. [2023-11-12 02:32:12,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 02:32:12,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 215.0) internal successors, (1505), 7 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states 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 02:32:12,301 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 215.0) internal successors, (1505), 7 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states 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 02:32:12,302 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 194 flow. Second operand 6 states and 539 transitions. [2023-11-12 02:32:12,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 385 flow [2023-11-12 02:32:12,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 51 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:32:12,310 INFO L231 Difference]: Finished difference. Result has 43 places, 27 transitions, 199 flow [2023-11-12 02:32:12,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=43, PETRI_TRANSITIONS=27} [2023-11-12 02:32:12,312 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 12 predicate places. [2023-11-12 02:32:12,313 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 199 flow [2023-11-12 02:32:12,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 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 02:32:12,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:12,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:12,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:32:12,316 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:12,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:12,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1865663377, now seen corresponding path program 1 times [2023-11-12 02:32:12,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:12,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931993753] [2023-11-12 02:32:12,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:12,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:12,859 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 02:32:12,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:12,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931993753] [2023-11-12 02:32:12,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931993753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:12,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:12,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:12,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482858996] [2023-11-12 02:32:12,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:12,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:32:12,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:12,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:32:12,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:32:12,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 215 [2023-11-12 02:32:12,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 02:32:12,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:12,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 215 [2023-11-12 02:32:12,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:13,082 INFO L124 PetriNetUnfolderBase]: 82/173 cut-off events. [2023-11-12 02:32:13,083 INFO L125 PetriNetUnfolderBase]: For 382/382 co-relation queries the response was YES. [2023-11-12 02:32:13,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 173 events. 82/173 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 558 event pairs, 31 based on Foata normal form. 3/176 useless extension candidates. Maximal degree in co-relation 685. Up to 136 conditions per place. [2023-11-12 02:32:13,086 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 20 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-11-12 02:32:13,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 33 transitions, 281 flow [2023-11-12 02:32:13,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:32:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:32:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 467 transitions. [2023-11-12 02:32:13,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4344186046511628 [2023-11-12 02:32:13,090 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 467 transitions. [2023-11-12 02:32:13,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 467 transitions. [2023-11-12 02:32:13,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:13,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 467 transitions. [2023-11-12 02:32:13,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states 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 02:32:13,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states 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 02:32:13,097 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states 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 02:32:13,097 INFO L175 Difference]: Start difference. First operand has 43 places, 27 transitions, 199 flow. Second operand 5 states and 467 transitions. [2023-11-12 02:32:13,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 33 transitions, 281 flow [2023-11-12 02:32:13,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 33 transitions, 265 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-11-12 02:32:13,102 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 232 flow [2023-11-12 02:32:13,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2023-11-12 02:32:13,103 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 12 predicate places. [2023-11-12 02:32:13,104 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 232 flow [2023-11-12 02:32:13,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 02:32:13,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:13,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:13,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:32:13,105 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:13,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:13,106 INFO L85 PathProgramCache]: Analyzing trace with hash 216877206, now seen corresponding path program 2 times [2023-11-12 02:32:13,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:13,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167824803] [2023-11-12 02:32:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:13,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:13,368 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 02:32:13,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:13,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167824803] [2023-11-12 02:32:13,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167824803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:13,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:13,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:32:13,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036289219] [2023-11-12 02:32:13,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:13,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:13,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:13,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 215 [2023-11-12 02:32:13,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:32:13,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:13,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 215 [2023-11-12 02:32:13,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:13,517 INFO L124 PetriNetUnfolderBase]: 41/101 cut-off events. [2023-11-12 02:32:13,518 INFO L125 PetriNetUnfolderBase]: For 449/457 co-relation queries the response was YES. [2023-11-12 02:32:13,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 101 events. 41/101 cut-off events. For 449/457 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 309 event pairs, 3 based on Foata normal form. 29/130 useless extension candidates. Maximal degree in co-relation 424. Up to 52 conditions per place. [2023-11-12 02:32:13,519 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 22 selfloop transitions, 3 changer transitions 18/48 dead transitions. [2023-11-12 02:32:13,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 48 transitions, 427 flow [2023-11-12 02:32:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:32:13,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:32:13,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 477 transitions. [2023-11-12 02:32:13,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44372093023255815 [2023-11-12 02:32:13,523 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 477 transitions. [2023-11-12 02:32:13,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 477 transitions. [2023-11-12 02:32:13,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:13,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 477 transitions. [2023-11-12 02:32:13,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 95.4) internal successors, (477), 5 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 02:32:13,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states 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 02:32:13,530 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states 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 02:32:13,531 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 232 flow. Second operand 5 states and 477 transitions. [2023-11-12 02:32:13,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 48 transitions, 427 flow [2023-11-12 02:32:13,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 349 flow, removed 20 selfloop flow, removed 7 redundant places. [2023-11-12 02:32:13,534 INFO L231 Difference]: Finished difference. Result has 43 places, 26 transitions, 164 flow [2023-11-12 02:32:13,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=43, PETRI_TRANSITIONS=26} [2023-11-12 02:32:13,536 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 12 predicate places. [2023-11-12 02:32:13,536 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 26 transitions, 164 flow [2023-11-12 02:32:13,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:32:13,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:13,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:13,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:32:13,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:13,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:13,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1026001004, now seen corresponding path program 1 times [2023-11-12 02:32:13,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:13,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125943576] [2023-11-12 02:32:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:13,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:13,756 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 02:32:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125943576] [2023-11-12 02:32:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125943576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:13,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:13,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:13,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430511505] [2023-11-12 02:32:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:13,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:32:13,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:13,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:32:13,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:13,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 215 [2023-11-12 02:32:13,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 26 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 02:32:13,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:13,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 215 [2023-11-12 02:32:13,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:13,938 INFO L124 PetriNetUnfolderBase]: 13/46 cut-off events. [2023-11-12 02:32:13,938 INFO L125 PetriNetUnfolderBase]: For 182/183 co-relation queries the response was YES. [2023-11-12 02:32:13,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 46 events. 13/46 cut-off events. For 182/183 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 0 based on Foata normal form. 9/55 useless extension candidates. Maximal degree in co-relation 183. Up to 18 conditions per place. [2023-11-12 02:32:13,940 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 19 selfloop transitions, 5 changer transitions 7/36 dead transitions. [2023-11-12 02:32:13,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 290 flow [2023-11-12 02:32:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:32:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:32:13,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 560 transitions. [2023-11-12 02:32:13,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43410852713178294 [2023-11-12 02:32:13,945 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 560 transitions. [2023-11-12 02:32:13,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 560 transitions. [2023-11-12 02:32:13,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:13,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 560 transitions. [2023-11-12 02:32:13,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 0 states have call successors, (0), 0 states 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 02:32:13,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 215.0) internal successors, (1505), 7 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states 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 02:32:13,953 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 215.0) internal successors, (1505), 7 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states 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 02:32:13,954 INFO L175 Difference]: Start difference. First operand has 43 places, 26 transitions, 164 flow. Second operand 6 states and 560 transitions. [2023-11-12 02:32:13,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 290 flow [2023-11-12 02:32:13,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 232 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-11-12 02:32:13,957 INFO L231 Difference]: Finished difference. Result has 44 places, 25 transitions, 138 flow [2023-11-12 02:32:13,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=44, PETRI_TRANSITIONS=25} [2023-11-12 02:32:13,959 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2023-11-12 02:32:13,960 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 25 transitions, 138 flow [2023-11-12 02:32:13,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 02:32:13,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:13,961 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 02:32:13,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:32:13,961 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:13,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:13,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1349577662, now seen corresponding path program 1 times [2023-11-12 02:32:13,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:13,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312993601] [2023-11-12 02:32:13,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:13,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:32:14,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:32:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:32:14,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:32:14,154 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:32:14,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-11-12 02:32:14,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2023-11-12 02:32:14,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-11-12 02:32:14,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2023-11-12 02:32:14,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2023-11-12 02:32:14,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2023-11-12 02:32:14,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-11-12 02:32:14,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2023-11-12 02:32:14,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2023-11-12 02:32:14,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-11-12 02:32:14,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:32:14,161 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:14,170 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:32:14,170 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:32:14,245 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre3 could not be translated [2023-11-12 02:32:14,248 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-12 02:32:14,256 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-12 02:32:14,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:32:14 BasicIcfg [2023-11-12 02:32:14,280 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:32:14,281 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:32:14,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:32:14,282 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:32:14,283 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:57" (3/4) ... [2023-11-12 02:32:14,285 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:32:14,287 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:32:14,288 INFO L158 Benchmark]: Toolchain (without parser) took 18609.86ms. Allocated memory was 123.7MB in the beginning and 268.4MB in the end (delta: 144.7MB). Free memory was 77.5MB in the beginning and 197.3MB in the end (delta: -119.8MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-11-12 02:32:14,288 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:32:14,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.30ms. Allocated memory is still 123.7MB. Free memory was 77.5MB in the beginning and 54.7MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 02:32:14,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.30ms. Allocated memory is still 123.7MB. Free memory was 54.7MB in the beginning and 51.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:32:14,289 INFO L158 Benchmark]: Boogie Preprocessor took 42.26ms. Allocated memory is still 123.7MB. Free memory was 51.9MB in the beginning and 50.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:32:14,290 INFO L158 Benchmark]: RCFGBuilder took 1199.60ms. Allocated memory was 123.7MB in the beginning and 184.5MB in the end (delta: 60.8MB). Free memory was 50.2MB in the beginning and 128.1MB in the end (delta: -77.9MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-11-12 02:32:14,291 INFO L158 Benchmark]: TraceAbstraction took 16462.38ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 127.1MB in the beginning and 197.3MB in the end (delta: -70.2MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-12 02:32:14,291 INFO L158 Benchmark]: Witness Printer took 5.93ms. Allocated memory is still 268.4MB. Free memory is still 197.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:32:14,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.30ms. Allocated memory is still 123.7MB. Free memory was 77.5MB in the beginning and 54.7MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.30ms. Allocated memory is still 123.7MB. Free memory was 54.7MB in the beginning and 51.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.26ms. Allocated memory is still 123.7MB. Free memory was 51.9MB in the beginning and 50.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1199.60ms. Allocated memory was 123.7MB in the beginning and 184.5MB in the end (delta: 60.8MB). Free memory was 50.2MB in the beginning and 128.1MB in the end (delta: -77.9MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 16462.38ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 127.1MB in the beginning and 197.3MB in the end (delta: -70.2MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 5.93ms. Allocated memory is still 268.4MB. Free memory is still 197.3MB. 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: 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: 8.5s, 108 PlacesBefore, 31 PlacesAfterwards, 104 TransitionsBefore, 25 TransitionsAfterwards, 1592 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 109 TotalNumberOfCompositions, 4329 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1848, independent: 1697, independent conditional: 0, independent unconditional: 1697, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 885, independent: 852, independent conditional: 0, independent unconditional: 852, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1848, independent: 845, independent conditional: 0, independent unconditional: 845, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 885, unknown conditional: 0, unknown unconditional: 885] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L800] 0 pthread_t t1587; [L801] FCALL, FORK 0 pthread_create(&t1587, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1587={5:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L802] 0 pthread_t t1588; [L803] FCALL, FORK 0 pthread_create(&t1588, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1587={5:0}, t1588={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L758] 2 x$w_buff1 = x$w_buff0 [L759] 2 x$w_buff0 = 2 [L760] 2 x$w_buff1_used = x$w_buff0_used [L761] 2 x$w_buff0_used = (_Bool)1 [L762] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L762] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L763] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L764] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L765] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L766] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L769] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=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$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L775] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L738] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L741] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, 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$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L744] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L745] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L746] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L747] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L748] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L753] 1 return 0; [L805] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L807] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L807] RET 0 assume_abort_if_not(main$tmp_guard0) [L809] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L810] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L811] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L812] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L813] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1587={5:0}, t1588={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L816] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L817] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L818] 0 x$flush_delayed = weak$$choice2 [L819] 0 x$mem_tmp = x [L820] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L821] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L822] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L823] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L824] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L825] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L826] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) [L828] 0 x = x$flush_delayed ? x$mem_tmp : x [L829] 0 x$flush_delayed = (_Bool)0 [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "rfi000_power.opt_pso.opt_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] - 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: 798]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 803]: 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: 801]: 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 5 procedures, 125 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 297 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 137 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 578 IncrementalHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 64 mSDtfsCounter, 578 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=8, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 904 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 02:32:14,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/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_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/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_c184824a-58cc-43c8-908f-efa5eced22dd/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 ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:32:17,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:32:17,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:32:17,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:32:17,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:32:17,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:32:17,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:32:17,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:32:17,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:32:17,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:32:17,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:32:17,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:32:17,881 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:32:17,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:32:17,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:32:17,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:32:17,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:32:17,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:32:17,886 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:32:17,888 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:32:17,888 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:32:17,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:32:17,889 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:32:17,890 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:32:17,891 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:32:17,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:32:17,892 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:32:17,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:32:17,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:32:17,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:32:17,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:32:17,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:32:17,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:32:17,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:32:17,898 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:32:17,898 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:32:17,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:32:17,899 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:32:17,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:32:17,900 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:32:17,901 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:32:17,901 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_c184824a-58cc-43c8-908f-efa5eced22dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 [2023-11-12 02:32:18,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:32:18,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:32:18,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:32:18,508 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:32:18,509 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:32:18,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-12 02:32:22,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:32:22,525 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:32:22,525 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-12 02:32:22,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/data/7b8aea715/7656ae05550545f881bcdec6cf307a44/FLAGb22c2b9d9 [2023-11-12 02:32:22,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/data/7b8aea715/7656ae05550545f881bcdec6cf307a44 [2023-11-12 02:32:22,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:32:22,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:32:22,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:32:22,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:32:22,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:32:22,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:32:22" (1/1) ... [2023-11-12 02:32:22,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531baf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:22, skipping insertion in model container [2023-11-12 02:32:22,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:32:22" (1/1) ... [2023-11-12 02:32:22,675 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:32:23,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:32:23,390 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:32:23,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:32:23,563 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:32:23,564 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:32:23,575 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:32:23,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23 WrapperNode [2023-11-12 02:32:23,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:32:23,578 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:32:23,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:32:23,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:32:23,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,708 INFO L138 Inliner]: procedures = 178, calls = 46, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 142 [2023-11-12 02:32:23,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:32:23,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:32:23,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:32:23,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:32:23,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,773 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,797 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:32:23,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:32:23,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:32:23,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:32:23,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:32:23,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:32:23,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:32:23,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:32:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:32:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:32:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:32:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:32:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:32:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:32:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:32:23,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:32:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:32:23,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:32:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:32:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:32:23,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:32:23,947 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 02:32:24,177 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:32:24,180 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:32:24,677 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:32:24,911 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:32:24,911 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:32:24,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:32:24 BoogieIcfgContainer [2023-11-12 02:32:24,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:32:24,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:32:24,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:32:24,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:32:24,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:32:22" (1/3) ... [2023-11-12 02:32:24,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6af13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:32:24, skipping insertion in model container [2023-11-12 02:32:24,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23" (2/3) ... [2023-11-12 02:32:24,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6af13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:32:24, skipping insertion in model container [2023-11-12 02:32:24,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:32:24" (3/3) ... [2023-11-12 02:32:24,927 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-12 02:32:24,947 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:32:24,947 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-12 02:32:24,948 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:32:25,025 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:32:25,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 107 transitions, 222 flow [2023-11-12 02:32:25,125 INFO L124 PetriNetUnfolderBase]: 3/105 cut-off events. [2023-11-12 02:32:25,125 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:25,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 3/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-11-12 02:32:25,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 107 transitions, 222 flow [2023-11-12 02:32:25,137 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 105 transitions, 216 flow [2023-11-12 02:32:25,141 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:32:25,152 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 105 transitions, 216 flow [2023-11-12 02:32:25,155 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 105 transitions, 216 flow [2023-11-12 02:32:25,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 105 transitions, 216 flow [2023-11-12 02:32:25,183 INFO L124 PetriNetUnfolderBase]: 3/105 cut-off events. [2023-11-12 02:32:25,183 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:25,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 3/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-11-12 02:32:25,187 INFO L119 LiptonReduction]: Number of co-enabled transitions 1592 [2023-11-12 02:32:36,044 INFO L134 LiptonReduction]: Checked pairs total: 4152 [2023-11-12 02:32:36,045 INFO L136 LiptonReduction]: Total number of compositions: 112 [2023-11-12 02:32:36,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:32:36,071 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;@301dcffb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:32:36,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-12 02:32:36,074 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:32:36,074 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:32:36,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:36,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:36,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:32:36,076 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:36,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:36,082 INFO L85 PathProgramCache]: Analyzing trace with hash 502, now seen corresponding path program 1 times [2023-11-12 02:32:36,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:32:36,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321498031] [2023-11-12 02:32:36,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:36,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:32:36,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:32:36,109 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:32:36,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 02:32:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:36,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:32:36,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:32:36,223 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 02:32:36,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:32:36,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:32:36,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321498031] [2023-11-12 02:32:36,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321498031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:36,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:36,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:32:36,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909867384] [2023-11-12 02:32:36,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:36,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:32:36,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:32:36,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:32:36,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:32:36,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 219 [2023-11-12 02:32:36,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 02:32:36,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:36,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 219 [2023-11-12 02:32:36,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:36,619 INFO L124 PetriNetUnfolderBase]: 173/321 cut-off events. [2023-11-12 02:32:36,619 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:32:36,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 321 events. 173/321 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1338 event pairs, 173 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 627. Up to 303 conditions per place. [2023-11-12 02:32:36,625 INFO L140 encePairwiseOnDemand]: 215/219 looper letters, 16 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-11-12 02:32:36,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 78 flow [2023-11-12 02:32:36,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:32:36,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:32:36,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 210 transitions. [2023-11-12 02:32:36,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4794520547945205 [2023-11-12 02:32:36,641 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 210 transitions. [2023-11-12 02:32:36,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 210 transitions. [2023-11-12 02:32:36,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:36,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 210 transitions. [2023-11-12 02:32:36,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states 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 02:32:36,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states 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 02:32:36,656 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states 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 02:32:36,659 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 54 flow. Second operand 2 states and 210 transitions. [2023-11-12 02:32:36,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 78 flow [2023-11-12 02:32:36,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:32:36,664 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 44 flow [2023-11-12 02:32:36,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-11-12 02:32:36,669 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-11-12 02:32:36,670 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 44 flow [2023-11-12 02:32:36,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 02:32:36,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:36,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:32:36,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-12 02:32:36,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:32:36,882 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:36,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:36,883 INFO L85 PathProgramCache]: Analyzing trace with hash 473814354, now seen corresponding path program 1 times [2023-11-12 02:32:36,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:32:36,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309433675] [2023-11-12 02:32:36,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:36,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:32:36,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:32:36,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:32:36,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 02:32:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:36,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:32:36,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:32:37,012 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 02:32:37,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:32:37,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:32:37,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309433675] [2023-11-12 02:32:37,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309433675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:37,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:37,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:32:37,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150677663] [2023-11-12 02:32:37,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:37,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:32:37,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:32:37,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:32:37,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:32:37,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 219 [2023-11-12 02:32:37,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states 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 02:32:37,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:37,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 219 [2023-11-12 02:32:37,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:37,207 INFO L124 PetriNetUnfolderBase]: 135/313 cut-off events. [2023-11-12 02:32:37,207 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:37,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 313 events. 135/313 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1493 event pairs, 21 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 563. Up to 187 conditions per place. [2023-11-12 02:32:37,212 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 19 selfloop transitions, 2 changer transitions 2/27 dead transitions. [2023-11-12 02:32:37,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 104 flow [2023-11-12 02:32:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:32:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:32:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-11-12 02:32:37,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4657534246575342 [2023-11-12 02:32:37,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-11-12 02:32:37,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-11-12 02:32:37,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:37,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-11-12 02:32:37,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states 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 02:32:37,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 0 states have call successors, (0), 0 states 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 02:32:37,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 0 states have call successors, (0), 0 states 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 02:32:37,248 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 44 flow. Second operand 3 states and 306 transitions. [2023-11-12 02:32:37,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 104 flow [2023-11-12 02:32:37,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 104 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:32:37,251 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-11-12 02:32:37,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-11-12 02:32:37,253 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2023-11-12 02:32:37,254 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-11-12 02:32:37,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states 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 02:32:37,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:37,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:37,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:32:37,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:32:37,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:37,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:37,471 INFO L85 PathProgramCache]: Analyzing trace with hash 69143549, now seen corresponding path program 1 times [2023-11-12 02:32:37,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:32:37,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785470455] [2023-11-12 02:32:37,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:37,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:32:37,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:32:37,506 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:32:37,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 02:32:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:37,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:32:37,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:32:37,741 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 02:32:37,741 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:32:37,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:32:37,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785470455] [2023-11-12 02:32:37,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785470455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:37,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:37,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:32:37,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198418188] [2023-11-12 02:32:37,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:37,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:37,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:32:37,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:37,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:37,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 219 [2023-11-12 02:32:37,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 02:32:37,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:37,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 219 [2023-11-12 02:32:37,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:37,967 INFO L124 PetriNetUnfolderBase]: 56/135 cut-off events. [2023-11-12 02:32:37,967 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-12 02:32:37,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 135 events. 56/135 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 470 event pairs, 12 based on Foata normal form. 16/141 useless extension candidates. Maximal degree in co-relation 283. Up to 69 conditions per place. [2023-11-12 02:32:37,970 INFO L140 encePairwiseOnDemand]: 214/219 looper letters, 19 selfloop transitions, 3 changer transitions 13/39 dead transitions. [2023-11-12 02:32:37,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 39 transitions, 164 flow [2023-11-12 02:32:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:32:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:32:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 472 transitions. [2023-11-12 02:32:37,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43105022831050227 [2023-11-12 02:32:37,975 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 472 transitions. [2023-11-12 02:32:37,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 472 transitions. [2023-11-12 02:32:37,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:37,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 472 transitions. [2023-11-12 02:32:37,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 0 states have call successors, (0), 0 states 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 02:32:37,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 02:32:37,983 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 02:32:37,984 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 5 states and 472 transitions. [2023-11-12 02:32:37,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 39 transitions, 164 flow [2023-11-12 02:32:37,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 39 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:32:37,986 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 67 flow [2023-11-12 02:32:37,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-11-12 02:32:37,988 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-11-12 02:32:37,988 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 67 flow [2023-11-12 02:32:37,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 02:32:37,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:37,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:38,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:32:38,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:32:38,209 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:32:38,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:38,210 INFO L85 PathProgramCache]: Analyzing trace with hash -803862262, now seen corresponding path program 1 times [2023-11-12 02:32:38,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:32:38,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505730846] [2023-11-12 02:32:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:38,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:32:38,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:32:38,213 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c184824a-58cc-43c8-908f-efa5eced22dd/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)