./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix055.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix055.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU --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 a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:40,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:41,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:12:41,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:41,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:41,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:41,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:41,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:41,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:41,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:41,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:41,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:41,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:41,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:41,133 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:41,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:41,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:41,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:41,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:41,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:41,140 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:12:41,140 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:12:41,140 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:12:41,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:41,141 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:12:41,141 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:41,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:41,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:41,143 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:41,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:41,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:41,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:12:41,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:41,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:41,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:41,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:41,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:41,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:41,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:41,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:41,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:41,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:41,149 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_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2024-10-31 22:12:41,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:41,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:41,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:41,471 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:41,472 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:41,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix055.opt.i Unable to find full path for "g++" [2024-10-31 22:12:43,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:43,876 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:43,877 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2024-10-31 22:12:43,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/data/61e4daecc/cd3aba8a0b824d168b5b305fa3e675e8/FLAG0ed34b739 [2024-10-31 22:12:43,913 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/data/61e4daecc/cd3aba8a0b824d168b5b305fa3e675e8 [2024-10-31 22:12:43,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:43,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:43,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:43,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:43,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:43,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:43" (1/1) ... [2024-10-31 22:12:43,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c66150d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:43, skipping insertion in model container [2024-10-31 22:12:43,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:43" (1/1) ... [2024-10-31 22:12:43,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:44,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:44,584 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:44,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:44,731 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:44,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44 WrapperNode [2024-10-31 22:12:44,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:44,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:44,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:44,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:44,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,793 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2024-10-31 22:12:44,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:44,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:44,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:44,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:44,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,833 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:12:44,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:44,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:44,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:44,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:44,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:44,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:44,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:44,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14309718-4c35-4243-ad06-8023c220d57d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:12:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:12:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:12:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:12:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:12:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:12:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:12:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:12:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:12:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:12:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:12:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:44,936 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:12:45,090 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:45,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:45,480 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:12:45,480 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:45,801 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:45,801 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:12:45,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:45 BoogieIcfgContainer [2024-10-31 22:12:45,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:45,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:45,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:45,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:45,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:43" (1/3) ... [2024-10-31 22:12:45,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679bc547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:45, skipping insertion in model container [2024-10-31 22:12:45,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (2/3) ... [2024-10-31 22:12:45,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679bc547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:45, skipping insertion in model container [2024-10-31 22:12:45,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:45" (3/3) ... [2024-10-31 22:12:45,814 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2024-10-31 22:12:45,838 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:45,839 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-31 22:12:45,839 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:12:45,903 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:12:45,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2024-10-31 22:12:45,980 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2024-10-31 22:12:45,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:45,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-10-31 22:12:45,988 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2024-10-31 22:12:45,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2024-10-31 22:12:46,014 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:46,028 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@18c84396, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:46,028 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:12:46,045 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:46,045 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-31 22:12:46,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:46,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:46,046 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:46,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:12:46,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:46,054 INFO L85 PathProgramCache]: Analyzing trace with hash 26352246, now seen corresponding path program 1 times [2024-10-31 22:12:46,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:46,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719074264] [2024-10-31 22:12:46,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:46,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:46,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:46,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719074264] [2024-10-31 22:12:46,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719074264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:46,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:46,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:12:46,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031268435] [2024-10-31 22:12:46,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:46,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:46,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:46,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:46,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 53 [2024-10-31 22:12:46,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:46,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:46,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 53 [2024-10-31 22:12:46,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:47,552 INFO L124 PetriNetUnfolderBase]: 1047/1835 cut-off events. [2024-10-31 22:12:47,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:47,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3395 conditions, 1835 events. 1047/1835 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 12978 event pairs, 219 based on Foata normal form. 96/1889 useless extension candidates. Maximal degree in co-relation 3383. Up to 1153 conditions per place. [2024-10-31 22:12:47,579 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 31 selfloop transitions, 2 changer transitions 2/57 dead transitions. [2024-10-31 22:12:47,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 57 transitions, 196 flow [2024-10-31 22:12:47,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:47,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-31 22:12:47,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7421383647798742 [2024-10-31 22:12:47,595 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 118 transitions. [2024-10-31 22:12:47,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 57 transitions, 196 flow [2024-10-31 22:12:47,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:12:47,603 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2024-10-31 22:12:47,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-31 22:12:47,611 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-10-31 22:12:47,613 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2024-10-31 22:12:47,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:47,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:47,614 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:47,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:47,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:12:47,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1526744582, now seen corresponding path program 1 times [2024-10-31 22:12:47,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:47,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322458739] [2024-10-31 22:12:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:47,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:47,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322458739] [2024-10-31 22:12:47,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322458739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:47,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:47,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:12:47,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297174373] [2024-10-31 22:12:47,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:47,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:47,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:47,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:47,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-10-31 22:12:47,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:47,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:47,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-10-31 22:12:47,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:48,090 INFO L124 PetriNetUnfolderBase]: 931/1611 cut-off events. [2024-10-31 22:12:48,091 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-31 22:12:48,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3101 conditions, 1611 events. 931/1611 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 11832 event pairs, 931 based on Foata normal form. 48/1593 useless extension candidates. Maximal degree in co-relation 3091. Up to 1352 conditions per place. [2024-10-31 22:12:48,106 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 20 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-31 22:12:48,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 142 flow [2024-10-31 22:12:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:48,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-10-31 22:12:48,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2024-10-31 22:12:48,110 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 98 transitions. [2024-10-31 22:12:48,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 142 flow [2024-10-31 22:12:48,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:48,113 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-10-31 22:12:48,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-10-31 22:12:48,115 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-10-31 22:12:48,115 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-10-31 22:12:48,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:48,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:48,118 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:48,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:12:48,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:12:48,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:48,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1526743297, now seen corresponding path program 1 times [2024-10-31 22:12:48,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:48,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799325260] [2024-10-31 22:12:48,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:48,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:49,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:49,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799325260] [2024-10-31 22:12:49,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799325260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:49,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:49,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:49,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089454206] [2024-10-31 22:12:49,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:49,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:49,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:49,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:49,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:49,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-31 22:12:49,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:49,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:49,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-31 22:12:49,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:52,384 INFO L124 PetriNetUnfolderBase]: 8421/13412 cut-off events. [2024-10-31 22:12:52,385 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:52,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25264 conditions, 13412 events. 8421/13412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 102802 event pairs, 366 based on Foata normal form. 0/13071 useless extension candidates. Maximal degree in co-relation 25258. Up to 5388 conditions per place. [2024-10-31 22:12:52,489 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 50 selfloop transitions, 11 changer transitions 88/165 dead transitions. [2024-10-31 22:12:52,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 165 transitions, 648 flow [2024-10-31 22:12:52,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:12:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:12:52,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 404 transitions. [2024-10-31 22:12:52,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352201257861635 [2024-10-31 22:12:52,498 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 12 states and 404 transitions. [2024-10-31 22:12:52,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 165 transitions, 648 flow [2024-10-31 22:12:52,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 165 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:12:52,505 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 203 flow [2024-10-31 22:12:52,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=203, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2024-10-31 22:12:52,509 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 12 predicate places. [2024-10-31 22:12:52,509 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 203 flow [2024-10-31 22:12:52,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:52,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:52,510 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:52,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:52,511 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:12:52,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:52,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1878280062, now seen corresponding path program 1 times [2024-10-31 22:12:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:52,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279974845] [2024-10-31 22:12:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:52,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:53,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:53,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279974845] [2024-10-31 22:12:53,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279974845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:53,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:53,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:53,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610164001] [2024-10-31 22:12:53,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:53,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:53,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:53,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:53,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-31 22:12:53,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 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) [2024-10-31 22:12:53,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:53,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-31 22:12:53,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:55,497 INFO L124 PetriNetUnfolderBase]: 6221/10801 cut-off events. [2024-10-31 22:12:55,498 INFO L125 PetriNetUnfolderBase]: For 14899/15616 co-relation queries the response was YES. [2024-10-31 22:12:55,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33289 conditions, 10801 events. 6221/10801 cut-off events. For 14899/15616 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 90159 event pairs, 2201 based on Foata normal form. 299/10452 useless extension candidates. Maximal degree in co-relation 33273. Up to 6085 conditions per place. [2024-10-31 22:12:55,642 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 49 selfloop transitions, 11 changer transitions 12/96 dead transitions. [2024-10-31 22:12:55,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 96 transitions, 561 flow [2024-10-31 22:12:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:12:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:12:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-10-31 22:12:55,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145552560646901 [2024-10-31 22:12:55,647 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 203 flow. Second operand 7 states and 228 transitions. [2024-10-31 22:12:55,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 96 transitions, 561 flow [2024-10-31 22:12:56,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 96 transitions, 517 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-10-31 22:12:56,048 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 297 flow [2024-10-31 22:12:56,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=297, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2024-10-31 22:12:56,050 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 8 predicate places. [2024-10-31 22:12:56,050 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 297 flow [2024-10-31 22:12:56,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 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) [2024-10-31 22:12:56,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:56,051 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:56,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:12:56,051 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:12:56,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash 638088316, now seen corresponding path program 1 times [2024-10-31 22:12:56,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:56,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951745454] [2024-10-31 22:12:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:56,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:57,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:57,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951745454] [2024-10-31 22:12:57,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951745454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:57,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:57,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:12:57,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609444232] [2024-10-31 22:12:57,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:57,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:12:57,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:57,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:12:57,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:57,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-31 22:12:57,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 297 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:57,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:57,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-31 22:12:57,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:00,546 INFO L124 PetriNetUnfolderBase]: 8266/14121 cut-off events. [2024-10-31 22:13:00,546 INFO L125 PetriNetUnfolderBase]: For 21873/22532 co-relation queries the response was YES. [2024-10-31 22:13:00,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44489 conditions, 14121 events. 8266/14121 cut-off events. For 21873/22532 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 120124 event pairs, 2650 based on Foata normal form. 274/13664 useless extension candidates. Maximal degree in co-relation 44472. Up to 5812 conditions per place. [2024-10-31 22:13:00,703 INFO L140 encePairwiseOnDemand]: 44/53 looper letters, 64 selfloop transitions, 39 changer transitions 20/147 dead transitions. [2024-10-31 22:13:00,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 147 transitions, 967 flow [2024-10-31 22:13:00,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:13:00,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-31 22:13:00,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 412 transitions. [2024-10-31 22:13:00,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5979680696661829 [2024-10-31 22:13:00,707 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 297 flow. Second operand 13 states and 412 transitions. [2024-10-31 22:13:00,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 147 transitions, 967 flow [2024-10-31 22:13:00,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 147 transitions, 967 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:13:00,751 INFO L231 Difference]: Finished difference. Result has 87 places, 89 transitions, 681 flow [2024-10-31 22:13:00,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=681, PETRI_PLACES=87, PETRI_TRANSITIONS=89} [2024-10-31 22:13:00,752 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 27 predicate places. [2024-10-31 22:13:00,753 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 89 transitions, 681 flow [2024-10-31 22:13:00,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:00,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:00,753 INFO L204 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] [2024-10-31 22:13:00,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:13:00,754 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:13:00,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:00,754 INFO L85 PathProgramCache]: Analyzing trace with hash 212450326, now seen corresponding path program 1 times [2024-10-31 22:13:00,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:00,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580488179] [2024-10-31 22:13:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:00,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:01,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:01,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580488179] [2024-10-31 22:13:01,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580488179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:01,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:01,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:13:01,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336719082] [2024-10-31 22:13:01,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:01,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:13:01,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:13:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:13:01,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-31 22:13:01,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 89 transitions, 681 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:01,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:01,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-31 22:13:01,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:04,093 INFO L124 PetriNetUnfolderBase]: 9179/16066 cut-off events. [2024-10-31 22:13:04,093 INFO L125 PetriNetUnfolderBase]: For 59679/60623 co-relation queries the response was YES. [2024-10-31 22:13:04,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60893 conditions, 16066 events. 9179/16066 cut-off events. For 59679/60623 co-relation queries the response was YES. Maximal size of possible extension queue 1195. Compared 144802 event pairs, 2282 based on Foata normal form. 306/15449 useless extension candidates. Maximal degree in co-relation 60867. Up to 8773 conditions per place. [2024-10-31 22:13:04,444 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 93 selfloop transitions, 26 changer transitions 16/159 dead transitions. [2024-10-31 22:13:04,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 159 transitions, 1503 flow [2024-10-31 22:13:04,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:13:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:13:04,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2024-10-31 22:13:04,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6179245283018868 [2024-10-31 22:13:04,447 INFO L175 Difference]: Start difference. First operand has 87 places, 89 transitions, 681 flow. Second operand 8 states and 262 transitions. [2024-10-31 22:13:04,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 159 transitions, 1503 flow [2024-10-31 22:13:04,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 159 transitions, 1457 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-10-31 22:13:04,826 INFO L231 Difference]: Finished difference. Result has 96 places, 103 transitions, 904 flow [2024-10-31 22:13:04,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=904, PETRI_PLACES=96, PETRI_TRANSITIONS=103} [2024-10-31 22:13:04,829 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 36 predicate places. [2024-10-31 22:13:04,831 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 103 transitions, 904 flow [2024-10-31 22:13:04,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:04,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:04,831 INFO L204 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] [2024-10-31 22:13:04,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:13:04,832 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:13:04,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:04,832 INFO L85 PathProgramCache]: Analyzing trace with hash -561625318, now seen corresponding path program 2 times [2024-10-31 22:13:04,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:04,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614511309] [2024-10-31 22:13:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:04,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:05,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:05,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614511309] [2024-10-31 22:13:05,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614511309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:05,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:05,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:13:05,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361082381] [2024-10-31 22:13:05,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:05,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:13:05,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:13:05,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:13:05,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-31 22:13:05,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 103 transitions, 904 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:05,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:05,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-31 22:13:05,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:08,988 INFO L124 PetriNetUnfolderBase]: 9338/16628 cut-off events. [2024-10-31 22:13:08,988 INFO L125 PetriNetUnfolderBase]: For 72231/73043 co-relation queries the response was YES. [2024-10-31 22:13:09,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64065 conditions, 16628 events. 9338/16628 cut-off events. For 72231/73043 co-relation queries the response was YES. Maximal size of possible extension queue 1251. Compared 152553 event pairs, 2141 based on Foata normal form. 331/16071 useless extension candidates. Maximal degree in co-relation 64033. Up to 6668 conditions per place. [2024-10-31 22:13:09,131 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 96 selfloop transitions, 46 changer transitions 22/188 dead transitions. [2024-10-31 22:13:09,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 188 transitions, 1987 flow [2024-10-31 22:13:09,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:13:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:13:09,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 320 transitions. [2024-10-31 22:13:09,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6037735849056604 [2024-10-31 22:13:09,134 INFO L175 Difference]: Start difference. First operand has 96 places, 103 transitions, 904 flow. Second operand 10 states and 320 transitions. [2024-10-31 22:13:09,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 188 transitions, 1987 flow [2024-10-31 22:13:09,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 188 transitions, 1876 flow, removed 47 selfloop flow, removed 1 redundant places. [2024-10-31 22:13:09,589 INFO L231 Difference]: Finished difference. Result has 109 places, 117 transitions, 1174 flow [2024-10-31 22:13:09,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1174, PETRI_PLACES=109, PETRI_TRANSITIONS=117} [2024-10-31 22:13:09,590 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 49 predicate places. [2024-10-31 22:13:09,590 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 117 transitions, 1174 flow [2024-10-31 22:13:09,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:09,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:09,592 INFO L204 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] [2024-10-31 22:13:09,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:13:09,592 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:13:09,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:09,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1747340325, now seen corresponding path program 1 times [2024-10-31 22:13:09,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:09,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816946922] [2024-10-31 22:13:09,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:09,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:09,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:09,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:09,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816946922] [2024-10-31 22:13:09,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816946922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:09,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:09,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:09,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675575080] [2024-10-31 22:13:09,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:09,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:09,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:09,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:09,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:09,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-31 22:13:09,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 117 transitions, 1174 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:09,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:09,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-31 22:13:09,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand