./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:33:30,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:33:30,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:33:30,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:33:30,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:33:30,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:33:30,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:33:30,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:33:30,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:33:30,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:33:30,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:33:30,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:33:30,978 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:33:30,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:33:30,980 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:33:30,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:33:30,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:33:30,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:33:30,982 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:33:30,982 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:33:30,982 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:33:30,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:33:30,984 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:33:30,984 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:33:30,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:33:30,985 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:33:30,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:33:30,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:33:30,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:33:30,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:30,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:33:30,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:33:30,989 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:33:30,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:33:30,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:33:30,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:33:30,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:33:30,991 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:33:30,991 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_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f [2023-11-12 02:33:31,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:33:31,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:33:31,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:33:31,356 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:33:31,357 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:33:31,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:33:34,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:34,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:34,843 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:33:34,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/data/e510d4ce8/f885e483fde84d27bdad00cf4dde1c3b/FLAG4eb119969 [2023-11-12 02:33:34,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/data/e510d4ce8/f885e483fde84d27bdad00cf4dde1c3b [2023-11-12 02:33:34,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:34,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:34,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:34,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:34,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:34,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:34" (1/1) ... [2023-11-12 02:33:34,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758fff2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:34, skipping insertion in model container [2023-11-12 02:33:34,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:34" (1/1) ... [2023-11-12 02:33:34,962 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:35,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:35,491 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:35,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:35,663 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:33:35,663 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:33:35,671 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:35,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35 WrapperNode [2023-11-12 02:33:35,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:35,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:35,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:35,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:35,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,773 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2023-11-12 02:33:35,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:35,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:35,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:35,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:35,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,813 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:35,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:35,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:35,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:35,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (1/1) ... [2023-11-12 02:33:35,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:35,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:35,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:35,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185dcbf9-2c09-4152-883f-5495840711c1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:33:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:33:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:33:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:33:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:33:35,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:33:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:33:35,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:33:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:33:35,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:33:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:33:35,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:33:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:33:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:33:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:35,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:35,934 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:33:36,107 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:36,109 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:33:36,601 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:33:36,838 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:33:36,839 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:33:36,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:36 BoogieIcfgContainer [2023-11-12 02:33:36,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:33:36,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:33:36,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:33:36,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:33:36,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:34" (1/3) ... [2023-11-12 02:33:36,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d355ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:36, skipping insertion in model container [2023-11-12 02:33:36,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:35" (2/3) ... [2023-11-12 02:33:36,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d355ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:36, skipping insertion in model container [2023-11-12 02:33:36,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:36" (3/3) ... [2023-11-12 02:33:36,852 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:33:36,873 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:33:36,873 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-12 02:33:36,873 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:33:36,950 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:33:36,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 153 transitions, 322 flow [2023-11-12 02:33:37,062 INFO L124 PetriNetUnfolderBase]: 3/149 cut-off events. [2023-11-12 02:33:37,062 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:33:37,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 149 events. 3/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 121 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-12 02:33:37,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 153 transitions, 322 flow [2023-11-12 02:33:37,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 149 transitions, 310 flow [2023-11-12 02:33:37,078 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:33:37,089 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 149 transitions, 310 flow [2023-11-12 02:33:37,092 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 149 transitions, 310 flow [2023-11-12 02:33:37,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 149 transitions, 310 flow [2023-11-12 02:33:37,133 INFO L124 PetriNetUnfolderBase]: 3/149 cut-off events. [2023-11-12 02:33:37,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:33:37,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 149 events. 3/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 121 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-12 02:33:37,139 INFO L119 LiptonReduction]: Number of co-enabled transitions 4194 [2023-11-12 02:33:43,330 INFO L134 LiptonReduction]: Checked pairs total: 11543 [2023-11-12 02:33:43,330 INFO L136 LiptonReduction]: Total number of compositions: 148 [2023-11-12 02:33:43,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:33:43,370 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;@459105dc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:33:43,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-12 02:33:43,373 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:33:43,373 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-12 02:33:43,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:33:43,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:33:43,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:33:43,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:33:43,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:43,382 INFO L85 PathProgramCache]: Analyzing trace with hash 661, now seen corresponding path program 1 times [2023-11-12 02:33:43,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:43,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980330519] [2023-11-12 02:33:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:43,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:33:43,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:43,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980330519] [2023-11-12 02:33:43,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980330519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:43,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:43,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:33:43,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911389937] [2023-11-12 02:33:43,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:43,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:33:43,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:43,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:33:43,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:33:43,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 301 [2023-11-12 02:33:43,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 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) [2023-11-12 02:33:43,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:33:43,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 301 [2023-11-12 02:33:43,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:33:46,055 INFO L124 PetriNetUnfolderBase]: 8719/11885 cut-off events. [2023-11-12 02:33:46,056 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2023-11-12 02:33:46,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23833 conditions, 11885 events. 8719/11885 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 62311 event pairs, 8719 based on Foata normal form. 0/10392 useless extension candidates. Maximal degree in co-relation 23821. Up to 11731 conditions per place. [2023-11-12 02:33:46,171 INFO L140 encePairwiseOnDemand]: 292/301 looper letters, 28 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-11-12 02:33:46,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 32 transitions, 132 flow [2023-11-12 02:33:46,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:33:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:33:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2023-11-12 02:33:46,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5166112956810631 [2023-11-12 02:33:46,194 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 311 transitions. [2023-11-12 02:33:46,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 311 transitions. [2023-11-12 02:33:46,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:33:46,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 311 transitions. [2023-11-12 02:33:46,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.5) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:46,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:46,214 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:46,216 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 2 states and 311 transitions. [2023-11-12 02:33:46,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 32 transitions, 132 flow [2023-11-12 02:33:46,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:33:46,227 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 72 flow [2023-11-12 02:33:46,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-11-12 02:33:46,234 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -11 predicate places. [2023-11-12 02:33:46,234 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 72 flow [2023-11-12 02:33:46,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 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) [2023-11-12 02:33:46,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:33:46,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:33:46,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:33:46,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:33:46,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:46,236 INFO L85 PathProgramCache]: Analyzing trace with hash 651575, now seen corresponding path program 1 times [2023-11-12 02:33:46,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:46,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851187762] [2023-11-12 02:33:46,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:46,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:33:46,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:46,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851187762] [2023-11-12 02:33:46,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851187762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:46,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:46,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:33:46,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883383687] [2023-11-12 02:33:46,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:46,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:46,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:46,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:46,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:46,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 301 [2023-11-12 02:33:46,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:46,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:33:46,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 301 [2023-11-12 02:33:46,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:33:48,354 INFO L124 PetriNetUnfolderBase]: 6855/9897 cut-off events. [2023-11-12 02:33:48,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:33:48,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19334 conditions, 9897 events. 6855/9897 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 60392 event pairs, 1263 based on Foata normal form. 0/9239 useless extension candidates. Maximal degree in co-relation 19331. Up to 7399 conditions per place. [2023-11-12 02:33:48,452 INFO L140 encePairwiseOnDemand]: 298/301 looper letters, 45 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2023-11-12 02:33:48,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 218 flow [2023-11-12 02:33:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:33:48,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2023-11-12 02:33:48,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5071982281284607 [2023-11-12 02:33:48,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 458 transitions. [2023-11-12 02:33:48,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 458 transitions. [2023-11-12 02:33:48,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:33:48,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 458 transitions. [2023-11-12 02:33:48,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:48,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:48,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:48,472 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 72 flow. Second operand 3 states and 458 transitions. [2023-11-12 02:33:48,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 218 flow [2023-11-12 02:33:48,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 53 transitions, 218 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:33:48,475 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 72 flow [2023-11-12 02:33:48,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2023-11-12 02:33:48,478 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places. [2023-11-12 02:33:48,478 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 72 flow [2023-11-12 02:33:48,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:48,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:33:48,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:48,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:33:48,487 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:33:48,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:48,488 INFO L85 PathProgramCache]: Analyzing trace with hash -513761636, now seen corresponding path program 1 times [2023-11-12 02:33:48,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:48,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830506032] [2023-11-12 02:33:48,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:48,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:48,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:33:48,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:48,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830506032] [2023-11-12 02:33:48,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830506032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:48,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:48,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:33:48,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538034695] [2023-11-12 02:33:48,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:48,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:48,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:48,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:48,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:48,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 301 [2023-11-12 02:33:48,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:48,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:33:48,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 301 [2023-11-12 02:33:48,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:33:53,409 INFO L124 PetriNetUnfolderBase]: 23689/31854 cut-off events. [2023-11-12 02:33:53,409 INFO L125 PetriNetUnfolderBase]: For 1249/1249 co-relation queries the response was YES. [2023-11-12 02:33:53,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65437 conditions, 31854 events. 23689/31854 cut-off events. For 1249/1249 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 172964 event pairs, 8655 based on Foata normal form. 0/31124 useless extension candidates. Maximal degree in co-relation 65433. Up to 20183 conditions per place. [2023-11-12 02:33:53,673 INFO L140 encePairwiseOnDemand]: 292/301 looper letters, 47 selfloop transitions, 8 changer transitions 0/55 dead transitions. [2023-11-12 02:33:53,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 238 flow [2023-11-12 02:33:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:53,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:33:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2023-11-12 02:33:53,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4839424141749723 [2023-11-12 02:33:53,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2023-11-12 02:33:53,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2023-11-12 02:33:53,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:33:53,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2023-11-12 02:33:53,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:53,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:53,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:53,684 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 72 flow. Second operand 3 states and 437 transitions. [2023-11-12 02:33:53,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 238 flow [2023-11-12 02:33:53,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 55 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:33:53,687 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 130 flow [2023-11-12 02:33:53,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2023-11-12 02:33:53,688 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -9 predicate places. [2023-11-12 02:33:53,689 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 130 flow [2023-11-12 02:33:53,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:53,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:33:53,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:53,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:33:53,690 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:33:53,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:53,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1253256857, now seen corresponding path program 1 times [2023-11-12 02:33:53,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:53,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857475188] [2023-11-12 02:33:53,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:53,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:33:53,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:53,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857475188] [2023-11-12 02:33:53,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857475188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:53,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:53,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:33:53,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945682802] [2023-11-12 02:33:53,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:53,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:53,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:53,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:53,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:54,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 301 [2023-11-12 02:33:54,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:54,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:33:54,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 301 [2023-11-12 02:33:54,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:33:58,373 INFO L124 PetriNetUnfolderBase]: 18266/25344 cut-off events. [2023-11-12 02:33:58,373 INFO L125 PetriNetUnfolderBase]: For 7535/7621 co-relation queries the response was YES. [2023-11-12 02:33:58,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59992 conditions, 25344 events. 18266/25344 cut-off events. For 7535/7621 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 146606 event pairs, 5910 based on Foata normal form. 178/24981 useless extension candidates. Maximal degree in co-relation 59987. Up to 17227 conditions per place. [2023-11-12 02:33:58,637 INFO L140 encePairwiseOnDemand]: 298/301 looper letters, 43 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2023-11-12 02:33:58,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 264 flow [2023-11-12 02:33:58,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:33:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-11-12 02:33:58,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4939091915836102 [2023-11-12 02:33:58,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-11-12 02:33:58,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-11-12 02:33:58,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:33:58,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-11-12 02:33:58,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:58,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:58,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:58,652 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 130 flow. Second operand 3 states and 446 transitions. [2023-11-12 02:33:58,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 264 flow [2023-11-12 02:33:58,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 52 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:33:58,808 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 125 flow [2023-11-12 02:33:58,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-11-12 02:33:58,811 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -8 predicate places. [2023-11-12 02:33:58,812 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 125 flow [2023-11-12 02:33:58,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:58,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:33:58,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:58,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:33:58,814 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:33:58,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:58,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1253259303, now seen corresponding path program 1 times [2023-11-12 02:33:58,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:58,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527931266] [2023-11-12 02:33:58,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:58,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:00,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:00,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527931266] [2023-11-12 02:34:00,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527931266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:00,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:00,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:34:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783127056] [2023-11-12 02:34:00,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:00,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:34:00,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:00,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:34:00,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:34:00,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 301 [2023-11-12 02:34:00,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 125 flow. Second operand has 7 states, 7 states have (on average 120.71428571428571) internal successors, (845), 7 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:00,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:00,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 301 [2023-11-12 02:34:00,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:04,800 INFO L124 PetriNetUnfolderBase]: 18060/25432 cut-off events. [2023-11-12 02:34:04,801 INFO L125 PetriNetUnfolderBase]: For 5661/5663 co-relation queries the response was YES. [2023-11-12 02:34:04,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59238 conditions, 25432 events. 18060/25432 cut-off events. For 5661/5663 co-relation queries the response was YES. Maximal size of possible extension queue 1023. Compared 151756 event pairs, 3582 based on Foata normal form. 1030/25946 useless extension candidates. Maximal degree in co-relation 59232. Up to 16459 conditions per place. [2023-11-12 02:34:04,968 INFO L140 encePairwiseOnDemand]: 294/301 looper letters, 56 selfloop transitions, 6 changer transitions 19/87 dead transitions. [2023-11-12 02:34:04,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 87 transitions, 419 flow [2023-11-12 02:34:04,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:34:04,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:34:04,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 905 transitions. [2023-11-12 02:34:04,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4295206454674893 [2023-11-12 02:34:04,974 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 905 transitions. [2023-11-12 02:34:04,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 905 transitions. [2023-11-12 02:34:04,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:04,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 905 transitions. [2023-11-12 02:34:04,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.28571428571428) internal successors, (905), 7 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:04,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 301.0) internal successors, (2408), 8 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:04,989 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 301.0) internal successors, (2408), 8 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:04,989 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 125 flow. Second operand 7 states and 905 transitions. [2023-11-12 02:34:04,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 87 transitions, 419 flow [2023-11-12 02:34:05,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 87 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:05,037 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 140 flow [2023-11-12 02:34:05,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=140, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2023-11-12 02:34:05,040 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2023-11-12 02:34:05,041 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 140 flow [2023-11-12 02:34:05,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.71428571428571) internal successors, (845), 7 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:05,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:05,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:05,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:34:05,043 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:34:05,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:05,043 INFO L85 PathProgramCache]: Analyzing trace with hash 194709539, now seen corresponding path program 1 times [2023-11-12 02:34:05,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:05,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874126714] [2023-11-12 02:34:05,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:05,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:05,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:05,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874126714] [2023-11-12 02:34:05,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874126714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:05,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:05,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:34:05,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966609044] [2023-11-12 02:34:05,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:05,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:34:05,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:05,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:34:05,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:34:05,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 301 [2023-11-12 02:34:05,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:05,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:05,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 301 [2023-11-12 02:34:05,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:08,835 INFO L124 PetriNetUnfolderBase]: 19110/25827 cut-off events. [2023-11-12 02:34:08,836 INFO L125 PetriNetUnfolderBase]: For 8255/8255 co-relation queries the response was YES. [2023-11-12 02:34:08,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64339 conditions, 25827 events. 19110/25827 cut-off events. For 8255/8255 co-relation queries the response was YES. Maximal size of possible extension queue 777. Compared 138003 event pairs, 3881 based on Foata normal form. 40/25867 useless extension candidates. Maximal degree in co-relation 64331. Up to 15819 conditions per place. [2023-11-12 02:34:09,034 INFO L140 encePairwiseOnDemand]: 292/301 looper letters, 70 selfloop transitions, 12 changer transitions 0/82 dead transitions. [2023-11-12 02:34:09,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 82 transitions, 452 flow [2023-11-12 02:34:09,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:34:09,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:34:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 586 transitions. [2023-11-12 02:34:09,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4867109634551495 [2023-11-12 02:34:09,039 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 586 transitions. [2023-11-12 02:34:09,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 586 transitions. [2023-11-12 02:34:09,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:09,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 586 transitions. [2023-11-12 02:34:09,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:09,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:09,052 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:09,053 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 140 flow. Second operand 4 states and 586 transitions. [2023-11-12 02:34:09,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 82 transitions, 452 flow [2023-11-12 02:34:09,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 82 transitions, 420 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-11-12 02:34:09,262 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 224 flow [2023-11-12 02:34:09,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=224, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2023-11-12 02:34:09,267 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2023-11-12 02:34:09,273 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 224 flow [2023-11-12 02:34:09,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:09,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:09,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:09,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:34:09,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:34:09,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1741098412, now seen corresponding path program 1 times [2023-11-12 02:34:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038514605] [2023-11-12 02:34:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:09,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:09,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:09,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038514605] [2023-11-12 02:34:09,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038514605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:09,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:09,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:34:09,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475043174] [2023-11-12 02:34:09,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:09,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:34:09,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:09,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:34:09,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:34:09,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 301 [2023-11-12 02:34:09,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:09,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:09,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 301 [2023-11-12 02:34:09,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:12,462 INFO L124 PetriNetUnfolderBase]: 11029/16191 cut-off events. [2023-11-12 02:34:12,463 INFO L125 PetriNetUnfolderBase]: For 10984/11709 co-relation queries the response was YES. [2023-11-12 02:34:12,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41072 conditions, 16191 events. 11029/16191 cut-off events. For 10984/11709 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 101559 event pairs, 1930 based on Foata normal form. 1173/17004 useless extension candidates. Maximal degree in co-relation 41063. Up to 8721 conditions per place. [2023-11-12 02:34:12,578 INFO L140 encePairwiseOnDemand]: 294/301 looper letters, 67 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2023-11-12 02:34:12,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 85 transitions, 511 flow [2023-11-12 02:34:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:34:12,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:34:12,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 581 transitions. [2023-11-12 02:34:12,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48255813953488375 [2023-11-12 02:34:12,584 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 581 transitions. [2023-11-12 02:34:12,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 581 transitions. [2023-11-12 02:34:12,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:12,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 581 transitions. [2023-11-12 02:34:12,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:12,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:12,592 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:12,592 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 224 flow. Second operand 4 states and 581 transitions. [2023-11-12 02:34:12,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 85 transitions, 511 flow [2023-11-12 02:34:12,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 85 transitions, 511 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:34:12,634 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 270 flow [2023-11-12 02:34:12,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2023-11-12 02:34:12,636 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2023-11-12 02:34:12,636 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 270 flow [2023-11-12 02:34:12,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:12,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:12,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:12,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:34:12,638 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:34:12,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:12,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1744607610, now seen corresponding path program 1 times [2023-11-12 02:34:12,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:12,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927760798] [2023-11-12 02:34:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:12,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:12,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:12,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927760798] [2023-11-12 02:34:12,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927760798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:12,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:12,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:34:12,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614183846] [2023-11-12 02:34:12,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:12,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:12,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:13,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 301 [2023-11-12 02:34:13,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 133.2) internal successors, (666), 5 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:13,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:13,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 301 [2023-11-12 02:34:13,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:14,903 INFO L124 PetriNetUnfolderBase]: 7340/11208 cut-off events. [2023-11-12 02:34:14,904 INFO L125 PetriNetUnfolderBase]: For 10325/10794 co-relation queries the response was YES. [2023-11-12 02:34:14,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33385 conditions, 11208 events. 7340/11208 cut-off events. For 10325/10794 co-relation queries the response was YES. Maximal size of possible extension queue 511. Compared 71195 event pairs, 1602 based on Foata normal form. 777/11702 useless extension candidates. Maximal degree in co-relation 33373. Up to 3870 conditions per place. [2023-11-12 02:34:14,984 INFO L140 encePairwiseOnDemand]: 294/301 looper letters, 83 selfloop transitions, 10 changer transitions 0/105 dead transitions. [2023-11-12 02:34:14,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 105 transitions, 671 flow [2023-11-12 02:34:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:34:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:34:14,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 729 transitions. [2023-11-12 02:34:14,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48438538205980064 [2023-11-12 02:34:14,989 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 729 transitions. [2023-11-12 02:34:14,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 729 transitions. [2023-11-12 02:34:14,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:14,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 729 transitions. [2023-11-12 02:34:14,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:14,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:14,999 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:15,000 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 270 flow. Second operand 5 states and 729 transitions. [2023-11-12 02:34:15,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 105 transitions, 671 flow [2023-11-12 02:34:15,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 105 transitions, 668 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:34:15,027 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 329 flow [2023-11-12 02:34:15,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=329, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2023-11-12 02:34:15,029 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2023-11-12 02:34:15,029 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 329 flow [2023-11-12 02:34:15,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.2) internal successors, (666), 5 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:15,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:15,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:15,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:34:15,031 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:34:15,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:15,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1217661670, now seen corresponding path program 1 times [2023-11-12 02:34:15,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:15,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209837924] [2023-11-12 02:34:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:15,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:15,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:15,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209837924] [2023-11-12 02:34:15,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209837924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:15,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:15,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:34:15,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051411520] [2023-11-12 02:34:15,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:15,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:34:15,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:15,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:34:15,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:34:15,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 301 [2023-11-12 02:34:15,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:15,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:15,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 301 [2023-11-12 02:34:15,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:17,203 INFO L124 PetriNetUnfolderBase]: 6326/9641 cut-off events. [2023-11-12 02:34:17,204 INFO L125 PetriNetUnfolderBase]: For 16656/17014 co-relation queries the response was YES. [2023-11-12 02:34:17,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32310 conditions, 9641 events. 6326/9641 cut-off events. For 16656/17014 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 60629 event pairs, 1506 based on Foata normal form. 314/9687 useless extension candidates. Maximal degree in co-relation 32296. Up to 3870 conditions per place. [2023-11-12 02:34:17,284 INFO L140 encePairwiseOnDemand]: 294/301 looper letters, 94 selfloop transitions, 14 changer transitions 0/120 dead transitions. [2023-11-12 02:34:17,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 120 transitions, 807 flow [2023-11-12 02:34:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:34:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:34:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 875 transitions. [2023-11-12 02:34:17,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4844961240310077 [2023-11-12 02:34:17,290 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 875 transitions. [2023-11-12 02:34:17,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 875 transitions. [2023-11-12 02:34:17,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:17,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 875 transitions. [2023-11-12 02:34:17,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.83333333333334) internal successors, (875), 6 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:17,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:17,301 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:17,301 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 329 flow. Second operand 6 states and 875 transitions. [2023-11-12 02:34:17,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 120 transitions, 807 flow [2023-11-12 02:34:17,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 120 transitions, 771 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-12 02:34:17,335 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 381 flow [2023-11-12 02:34:17,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=381, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2023-11-12 02:34:17,336 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2023-11-12 02:34:17,336 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 381 flow [2023-11-12 02:34:17,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:17,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:17,338 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] [2023-11-12 02:34:17,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:34:17,338 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:34:17,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:17,339 INFO L85 PathProgramCache]: Analyzing trace with hash -759287073, now seen corresponding path program 1 times [2023-11-12 02:34:17,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:17,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829286216] [2023-11-12 02:34:17,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:17,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:18,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:18,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829286216] [2023-11-12 02:34:18,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829286216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:18,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:18,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:34:18,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179670178] [2023-11-12 02:34:18,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:18,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:34:18,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:18,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:34:18,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:34:18,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 301 [2023-11-12 02:34:18,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 381 flow. Second operand has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:18,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:18,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 301 [2023-11-12 02:34:18,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:20,530 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([473] L831-->L847: Formula: (let ((.cse4 (= (mod v_~b$r_buff1_thd4~0_60 256) 0)) (.cse6 (= (mod v_~b$r_buff0_thd4~0_62 256) 0))) (let ((.cse8 (not .cse6)) (.cse7 (and .cse6 .cse4)) (.cse12 (= (mod v_~b$w_buff0_used~0_150 256) 0)) (.cse9 (and .cse6 (= (mod v_~b$w_buff1_used~0_133 256) 0)))) (let ((.cse10 (or .cse7 .cse12 .cse9)) (.cse11 (and (not .cse12) .cse8))) (let ((.cse2 (= (mod v_~b$w_buff1_used~0_132 256) 0)) (.cse5 (ite .cse10 v_~b~0_93 (ite .cse11 v_~b$w_buff0~0_61 v_~b$w_buff1~0_64))) (.cse3 (= (mod v_~b$w_buff0_used~0_149 256) 0)) (.cse0 (not (= (mod v_~weak$$choice2~0_32 256) 0)))) (and (= v_~b$w_buff0~0_61 v_~b$w_buff0~0_60) (= (ite .cse0 v_~b$r_buff1_thd4~0_60 (ite (let ((.cse1 (= (mod v_~b$r_buff0_thd4~0_61 256) 0))) (or (and .cse1 .cse2) .cse3 (and .cse1 .cse4))) v_~b$r_buff1_thd4~0_60 0)) v_~b$r_buff1_thd4~0_59) (= v_~b~0_92 (ite .cse0 v_~b$mem_tmp~0_18 .cse5)) (= v_~b$flush_delayed~0_25 0) (= (ite .cse0 v_~b$r_buff0_thd4~0_62 (ite (or (and .cse6 .cse2) .cse7 .cse3) v_~b$r_buff0_thd4~0_62 (ite (and .cse8 (not .cse3)) 0 v_~b$r_buff0_thd4~0_62))) v_~b$r_buff0_thd4~0_61) (= .cse5 v_~__unbuffered_p3_EBX~0_10) (= v_~b$mem_tmp~0_18 v_~b~0_93) (= v_~b$w_buff1_used~0_132 (ite .cse0 v_~b$w_buff1_used~0_133 (ite (or .cse7 .cse3 .cse9) v_~b$w_buff1_used~0_133 0))) (= v_~b$w_buff1~0_64 v_~b$w_buff1~0_63) (= (ite .cse0 v_~b$w_buff0_used~0_150 (ite .cse10 v_~b$w_buff0_used~0_150 (ite .cse11 0 v_~b$w_buff0_used~0_150))) v_~b$w_buff0_used~0_149)))))) InVars {~b$w_buff0_used~0=v_~b$w_buff0_used~0_150, ~b~0=v_~b~0_93, ~b$w_buff1_used~0=v_~b$w_buff1_used~0_133, ~b$r_buff1_thd4~0=v_~b$r_buff1_thd4~0_60, ~b$w_buff1~0=v_~b$w_buff1~0_64, ~b$w_buff0~0=v_~b$w_buff0~0_61, ~b$r_buff0_thd4~0=v_~b$r_buff0_thd4~0_62} OutVars{~b$mem_tmp~0=v_~b$mem_tmp~0_18, ~b$flush_delayed~0=v_~b$flush_delayed~0_25, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_10, ~b$w_buff0_used~0=v_~b$w_buff0_used~0_149, P3Thread1of1ForFork3_#t~nondet3=|v_P3Thread1of1ForFork3_#t~nondet3_1|, ~weak$$choice0~0=v_~weak$$choice0~0_7, P3Thread1of1ForFork3_#t~nondet4=|v_P3Thread1of1ForFork3_#t~nondet4_1|, ~b~0=v_~b~0_92, ~b$w_buff1_used~0=v_~b$w_buff1_used~0_132, ~b$r_buff1_thd4~0=v_~b$r_buff1_thd4~0_59, ~b$w_buff1~0=v_~b$w_buff1~0_63, ~b$w_buff0~0=v_~b$w_buff0~0_60, ~weak$$choice2~0=v_~weak$$choice2~0_32, ~b$r_buff0_thd4~0=v_~b$r_buff0_thd4~0_61} AuxVars[] AssignedVars[~b$mem_tmp~0, ~b$flush_delayed~0, ~__unbuffered_p3_EBX~0, ~b$w_buff0_used~0, P3Thread1of1ForFork3_#t~nondet3, ~weak$$choice0~0, P3Thread1of1ForFork3_#t~nondet4, ~b~0, ~b$w_buff1_used~0, ~b$r_buff1_thd4~0, ~b$w_buff1~0, ~b$w_buff0~0, ~weak$$choice2~0, ~b$r_buff0_thd4~0][72], [P3Thread1of1ForFork3InUse, Black: 189#(and (not (= |ULTIMATE.start_main_~#t970~0#1.base| |ULTIMATE.start_main_~#t969~0#1.base|)) (not (= |ULTIMATE.start_main_~#t971~0#1.base| |ULTIMATE.start_main_~#t970~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t969~0#1.base| 0) |ULTIMATE.start_main_~#t970~0#1.base| 0) |ULTIMATE.start_main_~#t972~0#1.base| 0) |ULTIMATE.start_main_~#t971~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t972~0#1.base| |ULTIMATE.start_main_~#t971~0#1.base|)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t971~0#1.base| |ULTIMATE.start_main_~#t969~0#1.base|)) (not (= |ULTIMATE.start_main_~#t972~0#1.base| |ULTIMATE.start_main_~#t969~0#1.base|)) (not (= |ULTIMATE.start_main_~#t972~0#1.base| |ULTIMATE.start_main_~#t970~0#1.base|))), P0Thread1of1ForFork0InUse, 205#(and (<= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= 0 ~main$tmp_guard0~0)), 33#L808true, P2Thread1of1ForFork1InUse, 83#L878-3true, Black: 196#(<= ~x~0 0), Black: 197#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 0))), 166#true, 133#P0EXITtrue, Black: 234#(and (<= ~__unbuffered_cnt~0 2) (<= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256))), Black: 228#(< ~main$tmp_guard0~0 (+ 1 (* (div ~main$tmp_guard0~0 256) 256))), 155#L795true, 219#(and (<= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 1) (<= 0 ~main$tmp_guard0~0)), Black: 175#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 0))), Black: 207#(and (= ~__unbuffered_cnt~0 0) (<= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= 0 ~main$tmp_guard0~0)), 194#true, Black: 181#(= ~__unbuffered_p3_EAX~0 0), 250#(and (= ~b$r_buff0_thd4~0 0) (= ~b$r_buff0_thd2~0 0) (= ~__unbuffered_p3_EBX~0 1) (= 0 ~b$r_buff1_thd4~0) (= ~b~0 1) (= ~b$w_buff0~0 1) (= 0 ~b$r_buff1_thd2~0)), 98#L847true, Black: 215#(and (<= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= 0 ~main$tmp_guard0~0)), P1Thread1of1ForFork2InUse, 232#(and (<= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 1))]) [2023-11-12 02:34:20,530 INFO L294 olderBase$Statistics]: this new event has 20 ancestors and is not cut-off event [2023-11-12 02:34:20,530 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is not cut-off event [2023-11-12 02:34:20,531 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is not cut-off event [2023-11-12 02:34:20,531 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is not cut-off event