./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 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_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx --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 28f58acc3eb15266c6a84eca373e682a200492b696916dc340e2c03025141f5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:15,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:15,863 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-21 22:11:15,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:15,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:15,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:15,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:15,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:15,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:15,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:15,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:15,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:15,926 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:15,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:15,928 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:15,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:11:15,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:15,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:15,930 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:11:15,930 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:11:15,931 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:11:15,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:15,932 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:11:15,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:11:15,932 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:15,933 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:15,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:15,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:15,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:11:15,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:15,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:15,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:15,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:15,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:11:15,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:11:15,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:15,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:15,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:15,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:15,939 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_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28f58acc3eb15266c6a84eca373e682a200492b696916dc340e2c03025141f5c [2023-11-21 22:11:16,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:16,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:16,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:16,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:16,329 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:16,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2023-11-21 22:11:19,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:19,816 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:19,817 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2023-11-21 22:11:19,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/data/328cdf6f1/9e67d5e236144c10b01a5c46bdf5bd07/FLAGba3b053e1 [2023-11-21 22:11:19,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/data/328cdf6f1/9e67d5e236144c10b01a5c46bdf5bd07 [2023-11-21 22:11:19,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:19,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:19,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:19,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:19,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:19,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:19" (1/1) ... [2023-11-21 22:11:19,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bac3fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:19, skipping insertion in model container [2023-11-21 22:11:19,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:19" (1/1) ... [2023-11-21 22:11:19,960 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:20,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:20,556 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:20,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:20,662 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:20,662 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:20,670 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:20,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20 WrapperNode [2023-11-21 22:11:20,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:20,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:20,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:20,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:20,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,728 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-11-21 22:11:20,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:20,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:20,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:20,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:20,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:20,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:20,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:20,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:20,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (1/1) ... [2023-11-21 22:11:20,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:20,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:20,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:20,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:11:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:11:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:11:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:11:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 22:11:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 22:11:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 22:11:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 22:11:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 22:11:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 22:11:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-21 22:11:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-21 22:11:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:11:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:11:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:20,886 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:11:21,055 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:21,057 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:21,533 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:21,821 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:21,821 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:11:21,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:21 BoogieIcfgContainer [2023-11-21 22:11:21,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:21,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:21,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:21,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:21,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:19" (1/3) ... [2023-11-21 22:11:21,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4160f64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:21, skipping insertion in model container [2023-11-21 22:11:21,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:20" (2/3) ... [2023-11-21 22:11:21,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4160f64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:21, skipping insertion in model container [2023-11-21 22:11:21,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:21" (3/3) ... [2023-11-21 22:11:21,836 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.opt_pso.opt_rmo.opt.i [2023-11-21 22:11:21,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:21,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-21 22:11:21,857 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:11:21,924 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:11:21,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 67 transitions, 150 flow [2023-11-21 22:11:22,000 INFO L124 PetriNetUnfolderBase]: 2/63 cut-off events. [2023-11-21 22:11:22,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:22,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 2/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-11-21 22:11:22,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 67 transitions, 150 flow [2023-11-21 22:11:22,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 63 transitions, 138 flow [2023-11-21 22:11:22,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:22,032 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;@62b9b60d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:22,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-21 22:11:22,035 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:11:22,035 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-21 22:11:22,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:22,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:22,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-21 22:11:22,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:22,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:22,042 INFO L85 PathProgramCache]: Analyzing trace with hash 13478, now seen corresponding path program 1 times [2023-11-21 22:11:22,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:22,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546909255] [2023-11-21 22:11:22,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:22,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:22,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:22,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546909255] [2023-11-21 22:11:22,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546909255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:22,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:22,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:11:22,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873176397] [2023-11-21 22:11:22,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:22,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:22,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:22,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:22,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:22,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 67 [2023-11-21 22:11:22,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 63 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:22,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:22,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 67 [2023-11-21 22:11:22,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:23,364 INFO L124 PetriNetUnfolderBase]: 1941/3577 cut-off events. [2023-11-21 22:11:23,365 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-11-21 22:11:23,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6400 conditions, 3577 events. 1941/3577 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28398 event pairs, 1467 based on Foata normal form. 180/3416 useless extension candidates. Maximal degree in co-relation 6385. Up to 2085 conditions per place. [2023-11-21 22:11:23,413 INFO L140 encePairwiseOnDemand]: 62/67 looper letters, 32 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2023-11-21 22:11:23,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 68 transitions, 216 flow [2023-11-21 22:11:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:23,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2023-11-21 22:11:23,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7512437810945274 [2023-11-21 22:11:23,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 151 transitions. [2023-11-21 22:11:23,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 151 transitions. [2023-11-21 22:11:23,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:23,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 151 transitions. [2023-11-21 22:11:23,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:23,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:23,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:23,450 INFO L175 Difference]: Start difference. First operand has 74 places, 63 transitions, 138 flow. Second operand 3 states and 151 transitions. [2023-11-21 22:11:23,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 68 transitions, 216 flow [2023-11-21 22:11:23,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 68 transitions, 212 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:11:23,466 INFO L231 Difference]: Finished difference. Result has 70 places, 59 transitions, 130 flow [2023-11-21 22:11:23,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2023-11-21 22:11:23,472 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -4 predicate places. [2023-11-21 22:11:23,473 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 59 transitions, 130 flow [2023-11-21 22:11:23,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:23,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:23,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-21 22:11:23,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:23,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:23,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:23,476 INFO L85 PathProgramCache]: Analyzing trace with hash 13479, now seen corresponding path program 1 times [2023-11-21 22:11:23,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:23,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660891331] [2023-11-21 22:11:23,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:23,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:23,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:23,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660891331] [2023-11-21 22:11:23,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660891331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:23,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:23,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:11:23,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672669745] [2023-11-21 22:11:23,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:23,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:23,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:23,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:23,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:23,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 67 [2023-11-21 22:11:23,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 59 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:23,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:23,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 67 [2023-11-21 22:11:23,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:24,412 INFO L124 PetriNetUnfolderBase]: 1941/3576 cut-off events. [2023-11-21 22:11:24,413 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-11-21 22:11:24,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6486 conditions, 3576 events. 1941/3576 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28519 event pairs, 1467 based on Foata normal form. 1/3236 useless extension candidates. Maximal degree in co-relation 6475. Up to 2084 conditions per place. [2023-11-21 22:11:24,448 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 31 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2023-11-21 22:11:24,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 67 transitions, 212 flow [2023-11-21 22:11:24,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:24,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2023-11-21 22:11:24,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7512437810945274 [2023-11-21 22:11:24,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 151 transitions. [2023-11-21 22:11:24,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 151 transitions. [2023-11-21 22:11:24,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:24,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 151 transitions. [2023-11-21 22:11:24,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:24,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:24,460 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:24,460 INFO L175 Difference]: Start difference. First operand has 70 places, 59 transitions, 130 flow. Second operand 3 states and 151 transitions. [2023-11-21 22:11:24,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 67 transitions, 212 flow [2023-11-21 22:11:24,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 67 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:24,469 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 128 flow [2023-11-21 22:11:24,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2023-11-21 22:11:24,471 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -5 predicate places. [2023-11-21 22:11:24,472 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 128 flow [2023-11-21 22:11:24,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:24,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:24,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:11:24,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:11:24,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:24,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:24,479 INFO L85 PathProgramCache]: Analyzing trace with hash 401949806, now seen corresponding path program 1 times [2023-11-21 22:11:24,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:24,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906210952] [2023-11-21 22:11:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:24,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:24,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906210952] [2023-11-21 22:11:24,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906210952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:24,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:24,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:24,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845756674] [2023-11-21 22:11:24,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:24,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:24,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:24,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:24,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:24,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 67 [2023-11-21 22:11:24,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:24,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:24,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 67 [2023-11-21 22:11:24,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:25,354 INFO L124 PetriNetUnfolderBase]: 1942/3574 cut-off events. [2023-11-21 22:11:25,354 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-11-21 22:11:25,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6487 conditions, 3574 events. 1942/3574 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28428 event pairs, 1467 based on Foata normal form. 0/3237 useless extension candidates. Maximal degree in co-relation 6476. Up to 2084 conditions per place. [2023-11-21 22:11:25,390 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 32 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2023-11-21 22:11:25,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 212 flow [2023-11-21 22:11:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:25,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2023-11-21 22:11:25,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7412935323383084 [2023-11-21 22:11:25,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 149 transitions. [2023-11-21 22:11:25,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 149 transitions. [2023-11-21 22:11:25,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:25,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 149 transitions. [2023-11-21 22:11:25,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:25,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:25,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:25,395 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 128 flow. Second operand 3 states and 149 transitions. [2023-11-21 22:11:25,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 212 flow [2023-11-21 22:11:25,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:25,403 INFO L231 Difference]: Finished difference. Result has 68 places, 57 transitions, 126 flow [2023-11-21 22:11:25,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2023-11-21 22:11:25,404 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -6 predicate places. [2023-11-21 22:11:25,404 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 126 flow [2023-11-21 22:11:25,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:25,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:25,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:11:25,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:11:25,405 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:25,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:25,406 INFO L85 PathProgramCache]: Analyzing trace with hash 401949807, now seen corresponding path program 1 times [2023-11-21 22:11:25,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:25,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85103369] [2023-11-21 22:11:25,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:25,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:25,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:25,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85103369] [2023-11-21 22:11:25,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85103369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:25,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:25,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:25,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418082558] [2023-11-21 22:11:25,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:25,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:25,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:25,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:25,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 67 [2023-11-21 22:11:25,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:25,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:25,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 67 [2023-11-21 22:11:25,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:26,286 INFO L124 PetriNetUnfolderBase]: 1941/3572 cut-off events. [2023-11-21 22:11:26,286 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-11-21 22:11:26,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6483 conditions, 3572 events. 1941/3572 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28041 event pairs, 1250 based on Foata normal form. 2/3238 useless extension candidates. Maximal degree in co-relation 6473. Up to 2081 conditions per place. [2023-11-21 22:11:26,315 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 31 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2023-11-21 22:11:26,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 65 transitions, 208 flow [2023-11-21 22:11:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2023-11-21 22:11:26,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7512437810945274 [2023-11-21 22:11:26,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 151 transitions. [2023-11-21 22:11:26,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 151 transitions. [2023-11-21 22:11:26,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:26,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 151 transitions. [2023-11-21 22:11:26,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,322 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 126 flow. Second operand 3 states and 151 transitions. [2023-11-21 22:11:26,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 65 transitions, 208 flow [2023-11-21 22:11:26,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 65 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:26,329 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 124 flow [2023-11-21 22:11:26,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2023-11-21 22:11:26,331 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -7 predicate places. [2023-11-21 22:11:26,331 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 124 flow [2023-11-21 22:11:26,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:26,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:26,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:11:26,332 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:26,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash 118270648, now seen corresponding path program 1 times [2023-11-21 22:11:26,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:26,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333818743] [2023-11-21 22:11:26,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:26,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:26,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:26,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:26,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333818743] [2023-11-21 22:11:26,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333818743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:26,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:26,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:26,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903500924] [2023-11-21 22:11:26,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:26,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:26,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:26,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:26,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:26,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 67 [2023-11-21 22:11:26,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:26,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:26,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 67 [2023-11-21 22:11:26,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:27,069 INFO L124 PetriNetUnfolderBase]: 1948/3534 cut-off events. [2023-11-21 22:11:27,069 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-11-21 22:11:27,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6458 conditions, 3534 events. 1948/3534 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 26966 event pairs, 1499 based on Foata normal form. 0/3214 useless extension candidates. Maximal degree in co-relation 6448. Up to 2082 conditions per place. [2023-11-21 22:11:27,098 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 32 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2023-11-21 22:11:27,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 208 flow [2023-11-21 22:11:27,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:27,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:27,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2023-11-21 22:11:27,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7412935323383084 [2023-11-21 22:11:27,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 149 transitions. [2023-11-21 22:11:27,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 149 transitions. [2023-11-21 22:11:27,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:27,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 149 transitions. [2023-11-21 22:11:27,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,104 INFO L175 Difference]: Start difference. First operand has 67 places, 56 transitions, 124 flow. Second operand 3 states and 149 transitions. [2023-11-21 22:11:27,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 208 flow [2023-11-21 22:11:27,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:27,111 INFO L231 Difference]: Finished difference. Result has 66 places, 55 transitions, 122 flow [2023-11-21 22:11:27,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2023-11-21 22:11:27,115 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -8 predicate places. [2023-11-21 22:11:27,115 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 122 flow [2023-11-21 22:11:27,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:27,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:27,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:11:27,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:27,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash 118270649, now seen corresponding path program 1 times [2023-11-21 22:11:27,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:27,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878731485] [2023-11-21 22:11:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:27,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:27,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:27,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878731485] [2023-11-21 22:11:27,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878731485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:27,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:27,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:27,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2270830] [2023-11-21 22:11:27,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:27,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:27,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:27,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:27,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:27,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 67 [2023-11-21 22:11:27,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:27,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 67 [2023-11-21 22:11:27,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:27,815 INFO L124 PetriNetUnfolderBase]: 1941/3560 cut-off events. [2023-11-21 22:11:27,815 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-11-21 22:11:27,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6475 conditions, 3560 events. 1941/3560 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28059 event pairs, 970 based on Foata normal form. 6/3246 useless extension candidates. Maximal degree in co-relation 6465. Up to 2069 conditions per place. [2023-11-21 22:11:27,846 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 31 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2023-11-21 22:11:27,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 204 flow [2023-11-21 22:11:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:27,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2023-11-21 22:11:27,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7512437810945274 [2023-11-21 22:11:27,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 151 transitions. [2023-11-21 22:11:27,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 151 transitions. [2023-11-21 22:11:27,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:27,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 151 transitions. [2023-11-21 22:11:27,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,851 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 122 flow. Second operand 3 states and 151 transitions. [2023-11-21 22:11:27,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 204 flow [2023-11-21 22:11:27,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:27,855 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 120 flow [2023-11-21 22:11:27,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2023-11-21 22:11:27,859 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -9 predicate places. [2023-11-21 22:11:27,859 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 120 flow [2023-11-21 22:11:27,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:27,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:27,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:27,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:11:27,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:27,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:27,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1528121145, now seen corresponding path program 1 times [2023-11-21 22:11:27,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:27,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917207473] [2023-11-21 22:11:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:27,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:28,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:28,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917207473] [2023-11-21 22:11:28,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917207473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:28,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:28,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:11:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178786735] [2023-11-21 22:11:28,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:28,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:28,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:28,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:28,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:28,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 67 [2023-11-21 22:11:28,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:28,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 67 [2023-11-21 22:11:28,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:28,532 INFO L124 PetriNetUnfolderBase]: 1525/2664 cut-off events. [2023-11-21 22:11:28,532 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2023-11-21 22:11:28,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4977 conditions, 2664 events. 1525/2664 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 19633 event pairs, 277 based on Foata normal form. 0/2613 useless extension candidates. Maximal degree in co-relation 4967. Up to 1717 conditions per place. [2023-11-21 22:11:28,553 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 33 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2023-11-21 22:11:28,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 67 transitions, 224 flow [2023-11-21 22:11:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2023-11-21 22:11:28,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7860696517412935 [2023-11-21 22:11:28,557 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 158 transitions. [2023-11-21 22:11:28,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 158 transitions. [2023-11-21 22:11:28,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:28,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 158 transitions. [2023-11-21 22:11:28,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,563 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 120 flow. Second operand 3 states and 158 transitions. [2023-11-21 22:11:28,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 67 transitions, 224 flow [2023-11-21 22:11:28,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:28,569 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 116 flow [2023-11-21 22:11:28,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2023-11-21 22:11:28,571 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -10 predicate places. [2023-11-21 22:11:28,571 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 116 flow [2023-11-21 22:11:28,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:28,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:28,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:11:28,572 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:28,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:28,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1528120004, now seen corresponding path program 1 times [2023-11-21 22:11:28,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:28,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328011609] [2023-11-21 22:11:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:28,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:28,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:28,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328011609] [2023-11-21 22:11:28,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328011609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:28,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:28,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:28,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189176730] [2023-11-21 22:11:28,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:28,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:28,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:28,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:28,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:28,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 67 [2023-11-21 22:11:28,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:28,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:28,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 67 [2023-11-21 22:11:28,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:29,198 INFO L124 PetriNetUnfolderBase]: 1385/2536 cut-off events. [2023-11-21 22:11:29,198 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2023-11-21 22:11:29,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4728 conditions, 2536 events. 1385/2536 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 19252 event pairs, 609 based on Foata normal form. 0/2457 useless extension candidates. Maximal degree in co-relation 4717. Up to 1640 conditions per place. [2023-11-21 22:11:29,222 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 29 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2023-11-21 22:11:29,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 194 flow [2023-11-21 22:11:29,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:29,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2023-11-21 22:11:29,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7263681592039801 [2023-11-21 22:11:29,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 146 transitions. [2023-11-21 22:11:29,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 146 transitions. [2023-11-21 22:11:29,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:29,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 146 transitions. [2023-11-21 22:11:29,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,227 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 116 flow. Second operand 3 states and 146 transitions. [2023-11-21 22:11:29,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 194 flow [2023-11-21 22:11:29,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:29,230 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 114 flow [2023-11-21 22:11:29,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2023-11-21 22:11:29,232 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -12 predicate places. [2023-11-21 22:11:29,232 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 114 flow [2023-11-21 22:11:29,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:29,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:29,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:11:29,234 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:29,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1528120005, now seen corresponding path program 1 times [2023-11-21 22:11:29,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:29,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797413419] [2023-11-21 22:11:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:29,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:29,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797413419] [2023-11-21 22:11:29,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797413419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:29,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:29,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:29,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281320473] [2023-11-21 22:11:29,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:29,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:29,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:29,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:29,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 67 [2023-11-21 22:11:29,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:29,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 67 [2023-11-21 22:11:29,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:29,927 INFO L124 PetriNetUnfolderBase]: 1339/2526 cut-off events. [2023-11-21 22:11:29,927 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-11-21 22:11:29,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4599 conditions, 2526 events. 1339/2526 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 19338 event pairs, 417 based on Foata normal form. 24/2471 useless extension candidates. Maximal degree in co-relation 4589. Up to 1570 conditions per place. [2023-11-21 22:11:29,953 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 28 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2023-11-21 22:11:29,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 58 transitions, 188 flow [2023-11-21 22:11:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2023-11-21 22:11:29,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.736318407960199 [2023-11-21 22:11:29,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 148 transitions. [2023-11-21 22:11:29,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 148 transitions. [2023-11-21 22:11:29,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:29,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 148 transitions. [2023-11-21 22:11:29,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,958 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,959 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 148 transitions. [2023-11-21 22:11:29,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 58 transitions, 188 flow [2023-11-21 22:11:29,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 58 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:29,962 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 112 flow [2023-11-21 22:11:29,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2023-11-21 22:11:29,963 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -13 predicate places. [2023-11-21 22:11:29,963 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 112 flow [2023-11-21 22:11:29,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:29,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:29,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:11:29,964 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:29,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:29,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1648380085, now seen corresponding path program 1 times [2023-11-21 22:11:29,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:29,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263583461] [2023-11-21 22:11:29,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:30,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:30,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263583461] [2023-11-21 22:11:30,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263583461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:30,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:30,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 22:11:30,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830253645] [2023-11-21 22:11:30,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:30,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:11:30,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:30,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:11:30,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:11:31,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 67 [2023-11-21 22:11:31,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 10 states, 10 states have (on average 34.7) internal successors, (347), 10 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:31,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 67 [2023-11-21 22:11:31,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:31,882 INFO L124 PetriNetUnfolderBase]: 1347/2466 cut-off events. [2023-11-21 22:11:31,882 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-11-21 22:11:31,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4556 conditions, 2466 events. 1347/2466 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 18450 event pairs, 260 based on Foata normal form. 72/2458 useless extension candidates. Maximal degree in co-relation 4545. Up to 1570 conditions per place. [2023-11-21 22:11:31,901 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 30 selfloop transitions, 4 changer transitions 9/67 dead transitions. [2023-11-21 22:11:31,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 67 transitions, 232 flow [2023-11-21 22:11:31,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:11:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-21 22:11:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 275 transitions. [2023-11-21 22:11:31,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5863539445628998 [2023-11-21 22:11:31,904 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 275 transitions. [2023-11-21 22:11:31,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 275 transitions. [2023-11-21 22:11:31,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:31,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 275 transitions. [2023-11-21 22:11:31,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,908 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,908 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 7 states and 275 transitions. [2023-11-21 22:11:31,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 67 transitions, 232 flow [2023-11-21 22:11:31,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 228 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:31,910 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 112 flow [2023-11-21 22:11:31,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=112, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2023-11-21 22:11:31,912 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -10 predicate places. [2023-11-21 22:11:31,913 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 112 flow [2023-11-21 22:11:31,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.7) internal successors, (347), 10 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:31,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:31,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:11:31,914 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:31,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:31,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1648381365, now seen corresponding path program 1 times [2023-11-21 22:11:31,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:31,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469400979] [2023-11-21 22:11:31,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:31,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:32,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:32,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469400979] [2023-11-21 22:11:32,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469400979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:32,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:32,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:11:32,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591516937] [2023-11-21 22:11:32,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:32,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:32,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:32,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:32,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:32,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 67 [2023-11-21 22:11:32,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:32,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 67 [2023-11-21 22:11:32,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:33,258 INFO L124 PetriNetUnfolderBase]: 5293/8262 cut-off events. [2023-11-21 22:11:33,259 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2023-11-21 22:11:33,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15797 conditions, 8262 events. 5293/8262 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 58755 event pairs, 663 based on Foata normal form. 240/8457 useless extension candidates. Maximal degree in co-relation 15786. Up to 4461 conditions per place. [2023-11-21 22:11:33,324 INFO L140 encePairwiseOnDemand]: 60/67 looper letters, 47 selfloop transitions, 6 changer transitions 1/76 dead transitions. [2023-11-21 22:11:33,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 76 transitions, 288 flow [2023-11-21 22:11:33,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:33,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:11:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2023-11-21 22:11:33,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7313432835820896 [2023-11-21 22:11:33,326 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 196 transitions. [2023-11-21 22:11:33,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 196 transitions. [2023-11-21 22:11:33,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:33,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 196 transitions. [2023-11-21 22:11:33,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:33,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 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) [2023-11-21 22:11:33,329 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 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) [2023-11-21 22:11:33,329 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 112 flow. Second operand 4 states and 196 transitions. [2023-11-21 22:11:33,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 76 transitions, 288 flow [2023-11-21 22:11:33,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 76 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:11:33,332 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 147 flow [2023-11-21 22:11:33,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=147, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2023-11-21 22:11:33,333 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -11 predicate places. [2023-11-21 22:11:33,333 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 147 flow [2023-11-21 22:11:33,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:33,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:33,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:33,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:11:33,334 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:33,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1044112174, now seen corresponding path program 1 times [2023-11-21 22:11:33,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:33,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397652667] [2023-11-21 22:11:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:33,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:33,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:33,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397652667] [2023-11-21 22:11:33,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397652667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:33,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:33,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:11:33,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101987778] [2023-11-21 22:11:33,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:33,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:33,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:33,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:33,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:33,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 67 [2023-11-21 22:11:33,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 147 flow. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:33,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:33,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 67 [2023-11-21 22:11:33,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:34,580 INFO L124 PetriNetUnfolderBase]: 4321/6774 cut-off events. [2023-11-21 22:11:34,580 INFO L125 PetriNetUnfolderBase]: For 1732/1732 co-relation queries the response was YES. [2023-11-21 22:11:34,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15384 conditions, 6774 events. 4321/6774 cut-off events. For 1732/1732 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 46733 event pairs, 249 based on Foata normal form. 228/6966 useless extension candidates. Maximal degree in co-relation 15371. Up to 3201 conditions per place. [2023-11-21 22:11:34,620 INFO L140 encePairwiseOnDemand]: 60/67 looper letters, 60 selfloop transitions, 10 changer transitions 1/93 dead transitions. [2023-11-21 22:11:34,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 93 transitions, 402 flow [2023-11-21 22:11:34,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:11:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:11:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 248 transitions. [2023-11-21 22:11:34,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7402985074626866 [2023-11-21 22:11:34,623 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 248 transitions. [2023-11-21 22:11:34,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 248 transitions. [2023-11-21 22:11:34,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:34,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 248 transitions. [2023-11-21 22:11:34,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,627 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,627 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 147 flow. Second operand 5 states and 248 transitions. [2023-11-21 22:11:34,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 93 transitions, 402 flow [2023-11-21 22:11:34,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 93 transitions, 391 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:34,631 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 199 flow [2023-11-21 22:11:34,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2023-11-21 22:11:34,633 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -7 predicate places. [2023-11-21 22:11:34,633 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 199 flow [2023-11-21 22:11:34,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:34,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:34,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:11:34,636 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:34,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:34,636 INFO L85 PathProgramCache]: Analyzing trace with hash 487576456, now seen corresponding path program 1 times [2023-11-21 22:11:34,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:34,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145368681] [2023-11-21 22:11:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:34,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:34,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:34,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145368681] [2023-11-21 22:11:34,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145368681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:34,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:34,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:34,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008469526] [2023-11-21 22:11:34,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:34,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:34,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:34,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:34,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:34,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 67 [2023-11-21 22:11:34,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:34,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 67 [2023-11-21 22:11:34,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:35,549 INFO L124 PetriNetUnfolderBase]: 2837/4406 cut-off events. [2023-11-21 22:11:35,549 INFO L125 PetriNetUnfolderBase]: For 3458/3458 co-relation queries the response was YES. [2023-11-21 22:11:35,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11364 conditions, 4406 events. 2837/4406 cut-off events. For 3458/3458 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 26746 event pairs, 115 based on Foata normal form. 172/4547 useless extension candidates. Maximal degree in co-relation 11349. Up to 1361 conditions per place. [2023-11-21 22:11:35,581 INFO L140 encePairwiseOnDemand]: 60/67 looper letters, 71 selfloop transitions, 14 changer transitions 1/108 dead transitions. [2023-11-21 22:11:35,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 108 transitions, 526 flow [2023-11-21 22:11:35,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:35,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 298 transitions. [2023-11-21 22:11:35,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7412935323383084 [2023-11-21 22:11:35,583 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 298 transitions. [2023-11-21 22:11:35,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 298 transitions. [2023-11-21 22:11:35,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:35,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 298 transitions. [2023-11-21 22:11:35,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:35,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:35,587 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:35,587 INFO L175 Difference]: Start difference. First operand has 67 places, 56 transitions, 199 flow. Second operand 6 states and 298 transitions. [2023-11-21 22:11:35,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 108 transitions, 526 flow [2023-11-21 22:11:35,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 108 transitions, 496 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-21 22:11:35,604 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 249 flow [2023-11-21 22:11:35,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2023-11-21 22:11:35,605 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -4 predicate places. [2023-11-21 22:11:35,605 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 249 flow [2023-11-21 22:11:35,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:35,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:35,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:35,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:11:35,606 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:35,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:35,607 INFO L85 PathProgramCache]: Analyzing trace with hash 115616517, now seen corresponding path program 1 times [2023-11-21 22:11:35,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:35,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597670012] [2023-11-21 22:11:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:35,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:35,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:35,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597670012] [2023-11-21 22:11:35,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597670012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:35,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:35,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:11:35,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809856094] [2023-11-21 22:11:35,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:35,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:11:35,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:35,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:11:35,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:11:35,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 67 [2023-11-21 22:11:35,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 249 flow. Second operand has 7 states, 7 states have (on average 37.857142857142854) internal successors, (265), 7 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:35,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:35,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 67 [2023-11-21 22:11:35,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:36,423 INFO L124 PetriNetUnfolderBase]: 1825/2726 cut-off events. [2023-11-21 22:11:36,424 INFO L125 PetriNetUnfolderBase]: For 3624/3624 co-relation queries the response was YES. [2023-11-21 22:11:36,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7917 conditions, 2726 events. 1825/2726 cut-off events. For 3624/3624 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 14300 event pairs, 77 based on Foata normal form. 80/2775 useless extension candidates. Maximal degree in co-relation 7901. Up to 828 conditions per place. [2023-11-21 22:11:36,445 INFO L140 encePairwiseOnDemand]: 60/67 looper letters, 64 selfloop transitions, 18 changer transitions 1/105 dead transitions. [2023-11-21 22:11:36,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 105 transitions, 524 flow [2023-11-21 22:11:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:11:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-21 22:11:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 330 transitions. [2023-11-21 22:11:36,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7036247334754797 [2023-11-21 22:11:36,448 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 330 transitions. [2023-11-21 22:11:36,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 330 transitions. [2023-11-21 22:11:36,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:36,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 330 transitions. [2023-11-21 22:11:36,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 47.142857142857146) internal successors, (330), 7 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:36,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:36,452 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:36,452 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 249 flow. Second operand 7 states and 330 transitions. [2023-11-21 22:11:36,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 105 transitions, 524 flow [2023-11-21 22:11:36,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 105 transitions, 478 flow, removed 9 selfloop flow, removed 5 redundant places. [2023-11-21 22:11:36,481 INFO L231 Difference]: Finished difference. Result has 73 places, 60 transitions, 259 flow [2023-11-21 22:11:36,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=259, PETRI_PLACES=73, PETRI_TRANSITIONS=60} [2023-11-21 22:11:36,482 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -1 predicate places. [2023-11-21 22:11:36,482 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 60 transitions, 259 flow [2023-11-21 22:11:36,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.857142857142854) internal successors, (265), 7 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:36,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:36,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:36,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:11:36,484 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:36,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:36,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1810981746, now seen corresponding path program 1 times [2023-11-21 22:11:36,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:36,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761446013] [2023-11-21 22:11:36,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:36,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:36,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:36,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:36,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761446013] [2023-11-21 22:11:36,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761446013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:36,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:36,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:11:36,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190963564] [2023-11-21 22:11:36,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:36,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:36,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:36,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:36,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:36,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 67 [2023-11-21 22:11:36,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 60 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:36,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:36,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 67 [2023-11-21 22:11:36,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:37,522 INFO L124 PetriNetUnfolderBase]: 2278/4012 cut-off events. [2023-11-21 22:11:37,523 INFO L125 PetriNetUnfolderBase]: For 2320/2468 co-relation queries the response was YES. [2023-11-21 22:11:37,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9381 conditions, 4012 events. 2278/4012 cut-off events. For 2320/2468 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 27118 event pairs, 552 based on Foata normal form. 16/3789 useless extension candidates. Maximal degree in co-relation 9364. Up to 1567 conditions per place. [2023-11-21 22:11:37,548 INFO L140 encePairwiseOnDemand]: 62/67 looper letters, 46 selfloop transitions, 2 changer transitions 12/96 dead transitions. [2023-11-21 22:11:37,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 96 transitions, 468 flow [2023-11-21 22:11:37,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:37,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:37,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 283 transitions. [2023-11-21 22:11:37,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7039800995024875 [2023-11-21 22:11:37,551 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 283 transitions. [2023-11-21 22:11:37,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 283 transitions. [2023-11-21 22:11:37,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:37,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 283 transitions. [2023-11-21 22:11:37,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 47.166666666666664) internal successors, (283), 6 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:37,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:37,554 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:37,555 INFO L175 Difference]: Start difference. First operand has 73 places, 60 transitions, 259 flow. Second operand 6 states and 283 transitions. [2023-11-21 22:11:37,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 96 transitions, 468 flow [2023-11-21 22:11:37,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 96 transitions, 362 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-11-21 22:11:37,633 INFO L231 Difference]: Finished difference. Result has 72 places, 61 transitions, 180 flow [2023-11-21 22:11:37,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=72, PETRI_TRANSITIONS=61} [2023-11-21 22:11:37,634 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2023-11-21 22:11:37,634 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 61 transitions, 180 flow [2023-11-21 22:11:37,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:37,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:37,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:37,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:11:37,635 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:37,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:37,635 INFO L85 PathProgramCache]: Analyzing trace with hash 775171848, now seen corresponding path program 2 times [2023-11-21 22:11:37,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:37,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523726224] [2023-11-21 22:11:37,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:37,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:38,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:38,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523726224] [2023-11-21 22:11:38,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523726224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:38,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:38,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:38,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295375482] [2023-11-21 22:11:38,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:38,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:38,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:38,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:38,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:38,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 67 [2023-11-21 22:11:38,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 61 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:38,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:38,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 67 [2023-11-21 22:11:38,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:39,878 INFO L124 PetriNetUnfolderBase]: 9690/15084 cut-off events. [2023-11-21 22:11:39,878 INFO L125 PetriNetUnfolderBase]: For 729/729 co-relation queries the response was YES. [2023-11-21 22:11:39,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31109 conditions, 15084 events. 9690/15084 cut-off events. For 729/729 co-relation queries the response was YES. Maximal size of possible extension queue 868. Compared 108092 event pairs, 3419 based on Foata normal form. 16/14231 useless extension candidates. Maximal degree in co-relation 31094. Up to 7197 conditions per place. [2023-11-21 22:11:39,930 INFO L140 encePairwiseOnDemand]: 55/67 looper letters, 39 selfloop transitions, 9 changer transitions 15/94 dead transitions. [2023-11-21 22:11:39,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 387 flow [2023-11-21 22:11:39,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:11:39,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:11:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 222 transitions. [2023-11-21 22:11:39,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6626865671641791 [2023-11-21 22:11:39,932 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 222 transitions. [2023-11-21 22:11:39,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 222 transitions. [2023-11-21 22:11:39,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:39,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 222 transitions. [2023-11-21 22:11:39,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:39,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:39,936 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:39,936 INFO L175 Difference]: Start difference. First operand has 72 places, 61 transitions, 180 flow. Second operand 5 states and 222 transitions. [2023-11-21 22:11:39,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 387 flow [2023-11-21 22:11:39,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 94 transitions, 380 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-21 22:11:39,973 INFO L231 Difference]: Finished difference. Result has 75 places, 68 transitions, 245 flow [2023-11-21 22:11:39,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=245, PETRI_PLACES=75, PETRI_TRANSITIONS=68} [2023-11-21 22:11:39,974 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 1 predicate places. [2023-11-21 22:11:39,974 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 68 transitions, 245 flow [2023-11-21 22:11:39,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:39,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:39,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:39,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:11:39,976 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:39,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:39,976 INFO L85 PathProgramCache]: Analyzing trace with hash -901431206, now seen corresponding path program 3 times [2023-11-21 22:11:39,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:39,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609879861] [2023-11-21 22:11:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:39,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:42,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:42,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609879861] [2023-11-21 22:11:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609879861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:42,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:42,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-21 22:11:42,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536170275] [2023-11-21 22:11:42,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:42,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:11:42,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:11:42,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:11:42,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 67 [2023-11-21 22:11:42,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 68 transitions, 245 flow. Second operand has 10 states, 10 states have (on average 34.5) internal successors, (345), 10 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:42,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:42,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 67 [2023-11-21 22:11:42,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:44,198 INFO L124 PetriNetUnfolderBase]: 7088/11249 cut-off events. [2023-11-21 22:11:44,198 INFO L125 PetriNetUnfolderBase]: For 4170/4176 co-relation queries the response was YES. [2023-11-21 22:11:44,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27772 conditions, 11249 events. 7088/11249 cut-off events. For 4170/4176 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 77827 event pairs, 544 based on Foata normal form. 20/10872 useless extension candidates. Maximal degree in co-relation 27754. Up to 2944 conditions per place. [2023-11-21 22:11:44,267 INFO L140 encePairwiseOnDemand]: 53/67 looper letters, 76 selfloop transitions, 27 changer transitions 26/160 dead transitions. [2023-11-21 22:11:44,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 160 transitions, 821 flow [2023-11-21 22:11:44,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:11:44,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:11:44,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 478 transitions. [2023-11-21 22:11:44,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6485753052917232 [2023-11-21 22:11:44,270 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 478 transitions. [2023-11-21 22:11:44,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 478 transitions. [2023-11-21 22:11:44,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:44,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 478 transitions. [2023-11-21 22:11:44,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 43.45454545454545) internal successors, (478), 11 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 67.0) internal successors, (804), 12 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,276 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 67.0) internal successors, (804), 12 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,276 INFO L175 Difference]: Start difference. First operand has 75 places, 68 transitions, 245 flow. Second operand 11 states and 478 transitions. [2023-11-21 22:11:44,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 160 transitions, 821 flow [2023-11-21 22:11:44,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 160 transitions, 761 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-21 22:11:44,299 INFO L231 Difference]: Finished difference. Result has 81 places, 86 transitions, 377 flow [2023-11-21 22:11:44,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=377, PETRI_PLACES=81, PETRI_TRANSITIONS=86} [2023-11-21 22:11:44,299 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2023-11-21 22:11:44,299 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 86 transitions, 377 flow [2023-11-21 22:11:44,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.5) internal successors, (345), 10 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:44,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:44,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:11:44,301 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:44,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:44,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1915073946, now seen corresponding path program 4 times [2023-11-21 22:11:44,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:44,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435722570] [2023-11-21 22:11:44,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:44,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:44,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:44,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435722570] [2023-11-21 22:11:44,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435722570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:44,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:44,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:11:44,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519693279] [2023-11-21 22:11:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:44,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:44,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:44,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:44,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:44,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 67 [2023-11-21 22:11:44,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 86 transitions, 377 flow. Second operand has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:44,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 67 [2023-11-21 22:11:44,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:46,401 INFO L124 PetriNetUnfolderBase]: 10007/16187 cut-off events. [2023-11-21 22:11:46,401 INFO L125 PetriNetUnfolderBase]: For 9359/9419 co-relation queries the response was YES. [2023-11-21 22:11:46,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41854 conditions, 16187 events. 10007/16187 cut-off events. For 9359/9419 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 123148 event pairs, 2412 based on Foata normal form. 36/15239 useless extension candidates. Maximal degree in co-relation 41835. Up to 6331 conditions per place. [2023-11-21 22:11:46,454 INFO L140 encePairwiseOnDemand]: 56/67 looper letters, 44 selfloop transitions, 13 changer transitions 52/140 dead transitions. [2023-11-21 22:11:46,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 140 transitions, 809 flow [2023-11-21 22:11:46,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:46,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 271 transitions. [2023-11-21 22:11:46,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6741293532338308 [2023-11-21 22:11:46,457 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 271 transitions. [2023-11-21 22:11:46,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 271 transitions. [2023-11-21 22:11:46,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:46,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 271 transitions. [2023-11-21 22:11:46,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,460 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,460 INFO L175 Difference]: Start difference. First operand has 81 places, 86 transitions, 377 flow. Second operand 6 states and 271 transitions. [2023-11-21 22:11:46,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 140 transitions, 809 flow [2023-11-21 22:11:46,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 140 transitions, 802 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-21 22:11:46,541 INFO L231 Difference]: Finished difference. Result has 85 places, 73 transitions, 336 flow [2023-11-21 22:11:46,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=85, PETRI_TRANSITIONS=73} [2023-11-21 22:11:46,541 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 11 predicate places. [2023-11-21 22:11:46,542 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 336 flow [2023-11-21 22:11:46,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:46,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:46,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:11:46,543 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:46,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:46,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1462917586, now seen corresponding path program 5 times [2023-11-21 22:11:46,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:46,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940078811] [2023-11-21 22:11:46,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:46,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:46,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:46,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940078811] [2023-11-21 22:11:46,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940078811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:46,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:46,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:46,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68919293] [2023-11-21 22:11:46,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:46,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:46,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:46,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:46,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:46,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 67 [2023-11-21 22:11:46,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 336 flow. Second operand has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:46,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 67 [2023-11-21 22:11:46,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:47,749 INFO L124 PetriNetUnfolderBase]: 3298/6120 cut-off events. [2023-11-21 22:11:47,750 INFO L125 PetriNetUnfolderBase]: For 5518/5765 co-relation queries the response was YES. [2023-11-21 22:11:47,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14840 conditions, 6120 events. 3298/6120 cut-off events. For 5518/5765 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 45654 event pairs, 1210 based on Foata normal form. 40/5581 useless extension candidates. Maximal degree in co-relation 14818. Up to 2685 conditions per place. [2023-11-21 22:11:47,785 INFO L140 encePairwiseOnDemand]: 62/67 looper letters, 27 selfloop transitions, 2 changer transitions 32/97 dead transitions. [2023-11-21 22:11:47,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 97 transitions, 524 flow [2023-11-21 22:11:47,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:11:47,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:11:47,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 233 transitions. [2023-11-21 22:11:47,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6955223880597015 [2023-11-21 22:11:47,788 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 233 transitions. [2023-11-21 22:11:47,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 233 transitions. [2023-11-21 22:11:47,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:47,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 233 transitions. [2023-11-21 22:11:47,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,791 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,791 INFO L175 Difference]: Start difference. First operand has 85 places, 73 transitions, 336 flow. Second operand 5 states and 233 transitions. [2023-11-21 22:11:47,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 97 transitions, 524 flow [2023-11-21 22:11:47,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 97 transitions, 492 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-11-21 22:11:47,822 INFO L231 Difference]: Finished difference. Result has 85 places, 61 transitions, 229 flow [2023-11-21 22:11:47,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=229, PETRI_PLACES=85, PETRI_TRANSITIONS=61} [2023-11-21 22:11:47,823 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 11 predicate places. [2023-11-21 22:11:47,823 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 61 transitions, 229 flow [2023-11-21 22:11:47,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:47,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:47,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:11:47,824 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:47,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1783370372, now seen corresponding path program 6 times [2023-11-21 22:11:47,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:47,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68002320] [2023-11-21 22:11:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:47,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:47,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:11:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:47,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:11:47,971 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:11:47,972 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2023-11-21 22:11:47,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2023-11-21 22:11:47,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2023-11-21 22:11:47,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2023-11-21 22:11:47,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2023-11-21 22:11:47,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2023-11-21 22:11:47,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2023-11-21 22:11:47,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2023-11-21 22:11:47,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2023-11-21 22:11:47,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2023-11-21 22:11:47,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2023-11-21 22:11:47,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-11-21 22:11:47,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2023-11-21 22:11:47,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2023-11-21 22:11:47,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-11-21 22:11:47,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2023-11-21 22:11:47,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:11:47,980 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:47,987 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:11:47,987 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:11:48,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:11:48,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-21 22:11:48,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-21 22:11:48,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-21 22:11:48,092 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 22:11:48,093 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 22:11:48,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:11:48 BasicIcfg [2023-11-21 22:11:48,108 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:11:48,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:11:48,109 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:11:48,109 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:11:48,109 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:21" (3/4) ... [2023-11-21 22:11:48,111 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:11:48,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:11:48,113 INFO L158 Benchmark]: Toolchain (without parser) took 28244.36ms. Allocated memory was 151.0MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 109.8MB in the beginning and 526.5MB in the end (delta: -416.7MB). Peak memory consumption was 609.3MB. Max. memory is 16.1GB. [2023-11-21 22:11:48,113 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:48,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 798.63ms. Allocated memory is still 151.0MB. Free memory was 109.8MB in the beginning and 110.7MB in the end (delta: -903.8kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:11:48,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.14ms. Allocated memory is still 151.0MB. Free memory was 110.7MB in the beginning and 108.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:48,114 INFO L158 Benchmark]: Boogie Preprocessor took 52.24ms. Allocated memory is still 151.0MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:48,115 INFO L158 Benchmark]: RCFGBuilder took 1040.71ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 108.6MB in the end (delta: -2.4MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2023-11-21 22:11:48,115 INFO L158 Benchmark]: TraceAbstraction took 26281.05ms. Allocated memory was 151.0MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 107.9MB in the beginning and 526.5MB in the end (delta: -418.6MB). Peak memory consumption was 607.9MB. Max. memory is 16.1GB. [2023-11-21 22:11:48,116 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 1.2GB. Free memory is still 526.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:48,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 798.63ms. Allocated memory is still 151.0MB. Free memory was 109.8MB in the beginning and 110.7MB in the end (delta: -903.8kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.14ms. Allocated memory is still 151.0MB. Free memory was 110.7MB in the beginning and 108.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.24ms. Allocated memory is still 151.0MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1040.71ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 108.6MB in the end (delta: -2.4MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * TraceAbstraction took 26281.05ms. Allocated memory was 151.0MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 107.9MB in the beginning and 526.5MB in the end (delta: -418.6MB). Peak memory consumption was 607.9MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 1.2GB. Free memory is still 526.5MB. 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~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - 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: - 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p1_EBX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L727] 0 _Bool y$flush_delayed; [L728] 0 int y$mem_tmp; [L729] 0 _Bool y$r_buff0_thd0; [L730] 0 _Bool y$r_buff0_thd1; [L731] 0 _Bool y$r_buff0_thd2; [L732] 0 _Bool y$r_buff0_thd3; [L733] 0 _Bool y$r_buff0_thd4; [L734] 0 _Bool y$r_buff1_thd0; [L735] 0 _Bool y$r_buff1_thd1; [L736] 0 _Bool y$r_buff1_thd2; [L737] 0 _Bool y$r_buff1_thd3; [L738] 0 _Bool y$r_buff1_thd4; [L739] 0 _Bool y$read_delayed; [L740] 0 int *y$read_delayed_var; [L741] 0 int y$w_buff0; [L742] 0 _Bool y$w_buff0_used; [L743] 0 int y$w_buff1; [L744] 0 _Bool y$w_buff1_used; [L746] 0 int z = 0; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L859] 0 pthread_t t605; [L860] FCALL, FORK 0 pthread_create(&t605, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t605={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L861] 0 pthread_t t606; [L862] FCALL, FORK 0 pthread_create(&t606, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t605={5:0}, t606={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L863] 0 pthread_t t607; [L864] FCALL, FORK 0 pthread_create(&t607, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t605={5:0}, t606={6:0}, t607={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L798] 3 y$w_buff1 = y$w_buff0 [L799] 3 y$w_buff0 = 1 [L800] 3 y$w_buff1_used = y$w_buff0_used [L801] 3 y$w_buff0_used = (_Bool)1 [L802] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L802] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L803] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L804] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L805] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L806] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L807] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L808] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L811] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L865] 0 pthread_t t608; [L866] FCALL, FORK 0 pthread_create(&t608, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t605={5:0}, t606={6:0}, t607={7:0}, t608={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L828] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L831] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L834] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L752] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L767] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L770] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L773] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L774] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L775] 2 y$flush_delayed = weak$$choice2 [L776] 2 y$mem_tmp = y [L777] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L778] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L779] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L780] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L781] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L782] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L783] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] 2 __unbuffered_p1_EBX = y [L785] 2 y = y$flush_delayed ? y$mem_tmp : y [L786] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=2] [L814] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L815] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L816] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L817] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L818] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L837] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L838] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L839] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L840] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L841] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L791] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L821] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L844] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L868] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t605={5:0}, t606={6:0}, t607={7:0}, t608={3:0}, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L870] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L870] RET 0 assume_abort_if_not(main$tmp_guard0) [L872] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L873] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L874] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L875] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L876] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t605={5:0}, t606={6:0}, t607={7:0}, t608={3:0}, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L879] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t605={5:0}, t606={6:0}, t607={7:0}, t608={3:0}, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L881] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=2] [L17] 0 __assert_fail ("0", "mix023_power.opt_pso.opt_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=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: -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: 857]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 860]: 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: 866]: 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: 864]: 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: 862]: 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 9 procedures, 101 locations, 16 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: 26.0s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1107 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 918 mSDsluCounter, 327 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 252 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2511 IncrementalHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 75 mSDtfsCounter, 2511 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=377occurred in iteration=17, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 3117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 [2023-11-21 22:11:48,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx --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 28f58acc3eb15266c6a84eca373e682a200492b696916dc340e2c03025141f5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:51,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:51,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-21 22:11:51,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:51,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:51,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:51,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:51,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:51,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:51,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:51,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:51,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:51,486 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:51,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:51,488 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:51,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:11:51,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:51,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:51,490 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:11:51,490 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:11:51,491 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:11:51,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:51,492 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:11:51,492 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:11:51,493 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:11:51,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:11:51,494 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:51,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:51,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:51,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:51,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:11:51,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:51,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:51,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:51,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:51,497 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:11:51,498 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:11:51,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:51,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:51,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:51,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:51,499 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:11:51,500 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_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28f58acc3eb15266c6a84eca373e682a200492b696916dc340e2c03025141f5c [2023-11-21 22:11:51,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:51,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:51,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:51,901 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:51,902 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:51,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2023-11-21 22:11:55,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:55,904 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:55,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2023-11-21 22:11:55,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/data/15f0b2538/465988734b324d0e8c32b08278f78df6/FLAG816a1bb2f [2023-11-21 22:11:55,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/data/15f0b2538/465988734b324d0e8c32b08278f78df6 [2023-11-21 22:11:55,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:55,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:55,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:55,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:55,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:55,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:55" (1/1) ... [2023-11-21 22:11:55,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5764f319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:55, skipping insertion in model container [2023-11-21 22:11:55,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:55" (1/1) ... [2023-11-21 22:11:56,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:56,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:56,668 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:56,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:56,861 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:56,861 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:56,872 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:56,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56 WrapperNode [2023-11-21 22:11:56,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:56,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:56,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:56,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:56,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:56,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:56,995 INFO L138 Inliner]: procedures = 180, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2023-11-21 22:11:56,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:56,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:56,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:56,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:57,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:57,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:57,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:57,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:57,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (1/1) ... [2023-11-21 22:11:57,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:57,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:57,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:57,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:11:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:11:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:11:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:11:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:11:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 22:11:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 22:11:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 22:11:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 22:11:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 22:11:57,206 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 22:11:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-21 22:11:57,208 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-21 22:11:57,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:11:57,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:57,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:57,211 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:11:57,408 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:57,411 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:58,010 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:58,408 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:58,409 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:11:58,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:58 BoogieIcfgContainer [2023-11-21 22:11:58,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:58,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:58,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:58,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:58,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:55" (1/3) ... [2023-11-21 22:11:58,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2681052b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:58, skipping insertion in model container [2023-11-21 22:11:58,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:56" (2/3) ... [2023-11-21 22:11:58,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2681052b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:58, skipping insertion in model container [2023-11-21 22:11:58,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:58" (3/3) ... [2023-11-21 22:11:58,420 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.opt_pso.opt_rmo.opt.i [2023-11-21 22:11:58,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:58,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-21 22:11:58,441 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:11:58,515 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:11:58,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 67 transitions, 150 flow [2023-11-21 22:11:58,609 INFO L124 PetriNetUnfolderBase]: 2/63 cut-off events. [2023-11-21 22:11:58,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:58,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 2/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-11-21 22:11:58,620 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 67 transitions, 150 flow [2023-11-21 22:11:58,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 63 transitions, 138 flow [2023-11-21 22:11:58,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:58,665 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;@65340b96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:58,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-21 22:11:58,672 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:11:58,672 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-21 22:11:58,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:58,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:58,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-21 22:11:58,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:11:58,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:58,681 INFO L85 PathProgramCache]: Analyzing trace with hash 13542, now seen corresponding path program 1 times [2023-11-21 22:11:58,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:11:58,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715758632] [2023-11-21 22:11:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:58,697 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 [2023-11-21 22:11:58,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:11:58,701 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:11:58,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:11:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:58,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:11:58,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:58,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-21 22:11:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:58,937 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:58,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:11:58,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715758632] [2023-11-21 22:11:58,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715758632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:58,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:58,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:11:58,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314015428] [2023-11-21 22:11:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:58,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:58,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:11:58,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:58,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:59,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 67 [2023-11-21 22:11:59,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 63 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:59,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:59,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 67 [2023-11-21 22:11:59,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:00,162 INFO L124 PetriNetUnfolderBase]: 1941/3577 cut-off events. [2023-11-21 22:12:00,162 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-11-21 22:12:00,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6400 conditions, 3577 events. 1941/3577 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28398 event pairs, 1467 based on Foata normal form. 180/3416 useless extension candidates. Maximal degree in co-relation 6385. Up to 2085 conditions per place. [2023-11-21 22:12:00,211 INFO L140 encePairwiseOnDemand]: 62/67 looper letters, 32 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2023-11-21 22:12:00,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 68 transitions, 216 flow [2023-11-21 22:12:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2023-11-21 22:12:00,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7512437810945274 [2023-11-21 22:12:00,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 151 transitions. [2023-11-21 22:12:00,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 151 transitions. [2023-11-21 22:12:00,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:00,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 151 transitions. [2023-11-21 22:12:00,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,241 INFO L175 Difference]: Start difference. First operand has 74 places, 63 transitions, 138 flow. Second operand 3 states and 151 transitions. [2023-11-21 22:12:00,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 68 transitions, 216 flow [2023-11-21 22:12:00,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 68 transitions, 212 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:12:00,252 INFO L231 Difference]: Finished difference. Result has 70 places, 59 transitions, 130 flow [2023-11-21 22:12:00,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2023-11-21 22:12:00,289 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -4 predicate places. [2023-11-21 22:12:00,289 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 59 transitions, 130 flow [2023-11-21 22:12:00,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:00,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-21 22:12:00,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:00,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:12:00,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:12:00,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:00,494 INFO L85 PathProgramCache]: Analyzing trace with hash 13543, now seen corresponding path program 1 times [2023-11-21 22:12:00,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:12:00,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126377844] [2023-11-21 22:12:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:00,495 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 [2023-11-21 22:12:00,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:12:00,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:12:00,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:12:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:00,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:12:00,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:00,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-21 22:12:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:00,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:12:00,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:12:00,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126377844] [2023-11-21 22:12:00,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126377844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:00,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:00,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:12:00,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026383528] [2023-11-21 22:12:00,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:00,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:00,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:12:00,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:00,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:00,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 67 [2023-11-21 22:12:00,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 59 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:00,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 67 [2023-11-21 22:12:00,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:01,605 INFO L124 PetriNetUnfolderBase]: 1941/3576 cut-off events. [2023-11-21 22:12:01,605 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-11-21 22:12:01,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6486 conditions, 3576 events. 1941/3576 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28519 event pairs, 1467 based on Foata normal form. 1/3236 useless extension candidates. Maximal degree in co-relation 6475. Up to 2084 conditions per place. [2023-11-21 22:12:01,648 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 31 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2023-11-21 22:12:01,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 67 transitions, 212 flow [2023-11-21 22:12:01,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:01,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2023-11-21 22:12:01,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7512437810945274 [2023-11-21 22:12:01,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 151 transitions. [2023-11-21 22:12:01,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 151 transitions. [2023-11-21 22:12:01,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:01,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 151 transitions. [2023-11-21 22:12:01,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,676 INFO L175 Difference]: Start difference. First operand has 70 places, 59 transitions, 130 flow. Second operand 3 states and 151 transitions. [2023-11-21 22:12:01,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 67 transitions, 212 flow [2023-11-21 22:12:01,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 67 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:01,686 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 128 flow [2023-11-21 22:12:01,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2023-11-21 22:12:01,687 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -5 predicate places. [2023-11-21 22:12:01,688 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 128 flow [2023-11-21 22:12:01,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:01,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:12:01,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:12:01,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:12:01,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-21 22:12:01,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash 403858416, now seen corresponding path program 1 times [2023-11-21 22:12:01,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:12:01,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844967945] [2023-11-21 22:12:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:01,893 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 [2023-11-21 22:12:01,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:12:01,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:12:01,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd5c11a-0c8d-451f-9f30-3da369da690c/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:12:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:02,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:12:02,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:02,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-21 22:12:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:02,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:12:02,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:12:02,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844967945] [2023-11-21 22:12:02,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844967945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:02,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:02,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:02,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999497573] [2023-11-21 22:12:02,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:02,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:02,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:12:02,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:02,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:02,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 67 [2023-11-21 22:12:02,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:02,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:02,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 67 [2023-11-21 22:12:02,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand