./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix027_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_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/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_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/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_3f084e60-5f00-4be6-b345-652e207d23be/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 d8f535cb798ce58a79ec2e9a728d4e5d884025e215c7cfd9880fc53267dd5a20 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:25:03,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:25:03,850 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:25:03,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:25:03,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:25:03,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:25:03,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:25:03,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:25:03,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:25:03,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:25:03,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:25:03,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:25:03,927 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:25:03,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:25:03,929 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:25:03,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:25:03,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:25:03,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:25:03,931 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:25:03,932 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:25:03,932 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:25:03,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:25:03,933 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:25:03,934 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:25:03,934 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:25:03,936 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:25:03,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:25:03,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:25:03,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:25:03,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:03,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:25:03,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:25:03,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:25:03,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:25:03,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:25:03,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:25:03,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:25:03,942 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:25:03,942 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_3f084e60-5f00-4be6-b345-652e207d23be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f535cb798ce58a79ec2e9a728d4e5d884025e215c7cfd9880fc53267dd5a20 [2023-11-12 02:25:04,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:25:04,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:25:04,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:25:04,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:25:04,346 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:25:04,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:25:07,671 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:25:07,995 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:25:07,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:25:08,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/data/a66905949/ba9f99588719441085759f3396457bef/FLAGeed3ea135 [2023-11-12 02:25:08,027 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/data/a66905949/ba9f99588719441085759f3396457bef [2023-11-12 02:25:08,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:25:08,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:25:08,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:08,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:25:08,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:25:08,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc91263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08, skipping insertion in model container [2023-11-12 02:25:08,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,086 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:25:08,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:08,650 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:25:08,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:08,818 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:25:08,818 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:25:08,826 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:25:08,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08 WrapperNode [2023-11-12 02:25:08,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:08,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:08,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:25:08,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:25:08,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,929 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2023-11-12 02:25:08,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:08,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:25:08,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:25:08,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:25:08,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:09,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:25:09,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:25:09,012 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:25:09,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:25:09,013 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:09,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:09,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:09,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:25:09,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f084e60-5f00-4be6-b345-652e207d23be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:25:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:25:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:25:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:25:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:25:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:25:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:25:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:25:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:25:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:25:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:25:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:25:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:25:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:25:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:25:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:25:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:25:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:25:09,109 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 02:25:09,309 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:25:09,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:25:09,739 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:25:09,962 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:25:09,962 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:25:09,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:09 BoogieIcfgContainer [2023-11-12 02:25:09,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:25:09,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:25:09,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:25:09,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:25:09,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:25:08" (1/3) ... [2023-11-12 02:25:09,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e93225d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:09, skipping insertion in model container [2023-11-12 02:25:09,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (2/3) ... [2023-11-12 02:25:09,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e93225d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:09, skipping insertion in model container [2023-11-12 02:25:09,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:09" (3/3) ... [2023-11-12 02:25:09,978 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:25:09,998 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:25:09,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-12 02:25:09,999 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:25:10,090 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:25:10,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 150 transitions, 316 flow [2023-11-12 02:25:10,234 INFO L124 PetriNetUnfolderBase]: 3/146 cut-off events. [2023-11-12 02:25:10,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:10,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 3/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 116 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2023-11-12 02:25:10,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 150 transitions, 316 flow [2023-11-12 02:25:10,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 146 transitions, 304 flow [2023-11-12 02:25:10,251 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:25:10,262 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 146 transitions, 304 flow [2023-11-12 02:25:10,265 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 146 transitions, 304 flow [2023-11-12 02:25:10,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 146 transitions, 304 flow [2023-11-12 02:25:10,306 INFO L124 PetriNetUnfolderBase]: 3/146 cut-off events. [2023-11-12 02:25:10,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:10,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 3/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 117 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2023-11-12 02:25:10,312 INFO L119 LiptonReduction]: Number of co-enabled transitions 4064 [2023-11-12 02:25:16,348 INFO L134 LiptonReduction]: Checked pairs total: 11590 [2023-11-12 02:25:16,349 INFO L136 LiptonReduction]: Total number of compositions: 146 [2023-11-12 02:25:16,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:25:16,369 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;@1ab5cc40, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:25:16,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-12 02:25:16,372 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:25:16,372 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-12 02:25:16,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:16,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:16,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:25:16,374 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 02:25:16,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:16,379 INFO L85 PathProgramCache]: Analyzing trace with hash 655, now seen corresponding path program 1 times [2023-11-12 02:25:16,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:16,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301907831] [2023-11-12 02:25:16,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:16,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:16,508 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 02:25:16,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:16,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301907831] [2023-11-12 02:25:16,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301907831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:16,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:16,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:25:16,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662369971] [2023-11-12 02:25:16,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:16,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:25:16,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:16,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:25:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:25:16,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 296 [2023-11-12 02:25:16,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 2 states, 2 states have (on average 134.5) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 02:25:16,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:16,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 296 [2023-11-12 02:25:16,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:18,754 INFO L124 PetriNetUnfolderBase]: 8719/11810 cut-off events. [2023-11-12 02:25:18,754 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-11-12 02:25:18,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23758 conditions, 11810 events. 8719/11810 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 61144 event pairs, 8719 based on Foata normal form. 0/10302 useless extension candidates. Maximal degree in co-relation 23746. Up to 11731 conditions per place. [2023-11-12 02:25:18,880 INFO L140 encePairwiseOnDemand]: 287/296 looper letters, 28 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-11-12 02:25:18,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 32 transitions, 132 flow [2023-11-12 02:25:18,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:25:18,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:25:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 305 transitions. [2023-11-12 02:25:18,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5152027027027027 [2023-11-12 02:25:18,904 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 305 transitions. [2023-11-12 02:25:18,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 305 transitions. [2023-11-12 02:25:18,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:18,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 305 transitions. [2023-11-12 02:25:18,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 02:25:18,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 02:25:18,920 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 02:25:18,922 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 2 states and 305 transitions. [2023-11-12 02:25:18,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 32 transitions, 132 flow [2023-11-12 02:25:18,936 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 02:25:18,938 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 72 flow [2023-11-12 02:25:18,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, 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 02:25:18,944 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -11 predicate places. [2023-11-12 02:25:18,944 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 72 flow [2023-11-12 02:25:18,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 134.5) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 02:25:18,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:18,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:25:18,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:25:18,945 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 02:25:18,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:18,946 INFO L85 PathProgramCache]: Analyzing trace with hash 643841, now seen corresponding path program 1 times [2023-11-12 02:25:18,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:18,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613234659] [2023-11-12 02:25:18,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:18,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:19,287 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 02:25:19,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:19,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613234659] [2023-11-12 02:25:19,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613234659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:19,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:19,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:25:19,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155741562] [2023-11-12 02:25:19,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:19,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:19,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:19,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:19,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:19,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 296 [2023-11-12 02:25:19,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:19,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:19,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 296 [2023-11-12 02:25:19,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:20,923 INFO L124 PetriNetUnfolderBase]: 6855/9546 cut-off events. [2023-11-12 02:25:20,923 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:20,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18983 conditions, 9546 events. 6855/9546 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 52159 event pairs, 1935 based on Foata normal form. 0/8885 useless extension candidates. Maximal degree in co-relation 18980. Up to 7399 conditions per place. [2023-11-12 02:25:21,009 INFO L140 encePairwiseOnDemand]: 293/296 looper letters, 45 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2023-11-12 02:25:21,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 218 flow [2023-11-12 02:25:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:25:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2023-11-12 02:25:21,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5056306306306306 [2023-11-12 02:25:21,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2023-11-12 02:25:21,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2023-11-12 02:25:21,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:21,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2023-11-12 02:25:21,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states 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 02:25:21,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states 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 02:25:21,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states 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 02:25:21,029 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 72 flow. Second operand 3 states and 449 transitions. [2023-11-12 02:25:21,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 218 flow [2023-11-12 02:25:21,030 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 02:25:21,032 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 72 flow [2023-11-12 02:25:21,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, 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 02:25:21,034 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places. [2023-11-12 02:25:21,034 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 72 flow [2023-11-12 02:25:21,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:21,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:21,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:21,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:25:21,042 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 02:25:21,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:21,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1782887173, now seen corresponding path program 1 times [2023-11-12 02:25:21,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:21,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908835793] [2023-11-12 02:25:21,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:21,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,492 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 02:25:21,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:21,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908835793] [2023-11-12 02:25:21,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908835793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:21,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:21,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:25:21,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031534445] [2023-11-12 02:25:21,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:21,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:21,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:21,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:21,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:21,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 296 [2023-11-12 02:25:21,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 02:25:21,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:21,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 296 [2023-11-12 02:25:21,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:23,263 INFO L124 PetriNetUnfolderBase]: 7337/10046 cut-off events. [2023-11-12 02:25:23,263 INFO L125 PetriNetUnfolderBase]: For 501/501 co-relation queries the response was YES. [2023-11-12 02:25:23,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20673 conditions, 10046 events. 7337/10046 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 50400 event pairs, 3671 based on Foata normal form. 0/9673 useless extension candidates. Maximal degree in co-relation 20669. Up to 9289 conditions per place. [2023-11-12 02:25:23,350 INFO L140 encePairwiseOnDemand]: 292/296 looper letters, 44 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2023-11-12 02:25:23,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 50 transitions, 214 flow [2023-11-12 02:25:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:25:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2023-11-12 02:25:23,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4966216216216216 [2023-11-12 02:25:23,353 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2023-11-12 02:25:23,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2023-11-12 02:25:23,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:23,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2023-11-12 02:25:23,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states 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 02:25:23,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states 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 02:25:23,360 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states 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 02:25:23,360 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 72 flow. Second operand 3 states and 441 transitions. [2023-11-12 02:25:23,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 50 transitions, 214 flow [2023-11-12 02:25:23,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 50 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:25:23,363 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 87 flow [2023-11-12 02:25:23,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, 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=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-11-12 02:25:23,365 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places. [2023-11-12 02:25:23,365 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 87 flow [2023-11-12 02:25:23,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 02:25:23,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:23,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:23,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:25:23,371 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 02:25:23,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash 565069673, now seen corresponding path program 1 times [2023-11-12 02:25:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:23,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884724160] [2023-11-12 02:25:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:23,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:23,714 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 02:25:23,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:23,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884724160] [2023-11-12 02:25:23,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884724160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:23,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:23,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:25:23,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028737121] [2023-11-12 02:25:23,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:23,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:25:23,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:23,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:25:23,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:25:23,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 296 [2023-11-12 02:25:23,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 02:25:23,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:23,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 296 [2023-11-12 02:25:23,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:28,232 INFO L124 PetriNetUnfolderBase]: 24585/33027 cut-off events. [2023-11-12 02:25:28,232 INFO L125 PetriNetUnfolderBase]: For 3963/3963 co-relation queries the response was YES. [2023-11-12 02:25:28,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70938 conditions, 33027 events. 24585/33027 cut-off events. For 3963/3963 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 177775 event pairs, 1736 based on Foata normal form. 610/33637 useless extension candidates. Maximal degree in co-relation 70933. Up to 17970 conditions per place. [2023-11-12 02:25:28,517 INFO L140 encePairwiseOnDemand]: 286/296 looper letters, 63 selfloop transitions, 13 changer transitions 0/76 dead transitions. [2023-11-12 02:25:28,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 76 transitions, 351 flow [2023-11-12 02:25:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:25:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:25:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 564 transitions. [2023-11-12 02:25:28,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47635135135135137 [2023-11-12 02:25:28,521 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 564 transitions. [2023-11-12 02:25:28,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 564 transitions. [2023-11-12 02:25:28,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:28,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 564 transitions. [2023-11-12 02:25:28,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states 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 02:25:28,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states 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 02:25:28,529 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states 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 02:25:28,530 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 87 flow. Second operand 4 states and 564 transitions. [2023-11-12 02:25:28,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 76 transitions, 351 flow [2023-11-12 02:25:28,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 76 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:25:28,533 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 192 flow [2023-11-12 02:25:28,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2023-11-12 02:25:28,536 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2023-11-12 02:25:28,536 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 192 flow [2023-11-12 02:25:28,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 02:25:28,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:28,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:28,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:25:28,538 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 02:25:28,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:28,538 INFO L85 PathProgramCache]: Analyzing trace with hash 565073654, now seen corresponding path program 1 times [2023-11-12 02:25:28,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:28,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774451621] [2023-11-12 02:25:28,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:28,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:29,380 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 02:25:29,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:29,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774451621] [2023-11-12 02:25:29,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774451621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:29,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:29,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:25:29,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553749327] [2023-11-12 02:25:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:29,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:25:29,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:25:29,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:25:29,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 296 [2023-11-12 02:25:29,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 192 flow. Second operand has 7 states, 7 states have (on average 115.71428571428571) internal successors, (810), 7 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 02:25:29,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:29,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 296 [2023-11-12 02:25:29,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:33,242 INFO L124 PetriNetUnfolderBase]: 15683/21978 cut-off events. [2023-11-12 02:25:33,242 INFO L125 PetriNetUnfolderBase]: For 13280/14009 co-relation queries the response was YES. [2023-11-12 02:25:33,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56757 conditions, 21978 events. 15683/21978 cut-off events. For 13280/14009 co-relation queries the response was YES. Maximal size of possible extension queue 1049. Compared 131759 event pairs, 3155 based on Foata normal form. 1307/22347 useless extension candidates. Maximal degree in co-relation 56750. Up to 14702 conditions per place. [2023-11-12 02:25:33,412 INFO L140 encePairwiseOnDemand]: 290/296 looper letters, 48 selfloop transitions, 6 changer transitions 19/84 dead transitions. [2023-11-12 02:25:33,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 84 transitions, 482 flow [2023-11-12 02:25:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:25:33,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:25:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 855 transitions. [2023-11-12 02:25:33,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4126447876447876 [2023-11-12 02:25:33,416 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 855 transitions. [2023-11-12 02:25:33,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 855 transitions. [2023-11-12 02:25:33,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:33,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 855 transitions. [2023-11-12 02:25:33,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states 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 02:25:33,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 296.0) internal successors, (2368), 8 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states 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 02:25:33,427 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 296.0) internal successors, (2368), 8 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states 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 02:25:33,427 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 192 flow. Second operand 7 states and 855 transitions. [2023-11-12 02:25:33,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 84 transitions, 482 flow [2023-11-12 02:25:33,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 84 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:25:33,434 INFO L231 Difference]: Finished difference. Result has 53 places, 43 transitions, 202 flow [2023-11-12 02:25:33,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=202, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2023-11-12 02:25:33,437 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places. [2023-11-12 02:25:33,437 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 202 flow [2023-11-12 02:25:33,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.71428571428571) internal successors, (810), 7 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 02:25:33,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:33,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:33,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:25:33,440 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 02:25:33,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:33,440 INFO L85 PathProgramCache]: Analyzing trace with hash 403431111, now seen corresponding path program 1 times [2023-11-12 02:25:33,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:33,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105156082] [2023-11-12 02:25:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:33,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:33,645 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 02:25:33,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:33,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105156082] [2023-11-12 02:25:33,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105156082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:33,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:33,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:25:33,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917493125] [2023-11-12 02:25:33,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:33,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:25:33,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:25:33,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:25:33,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 296 [2023-11-12 02:25:33,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 0 states have call successors, (0), 0 states 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 02:25:33,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:33,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 296 [2023-11-12 02:25:33,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:37,034 INFO L124 PetriNetUnfolderBase]: 19100/25803 cut-off events. [2023-11-12 02:25:37,034 INFO L125 PetriNetUnfolderBase]: For 19682/19682 co-relation queries the response was YES. [2023-11-12 02:25:37,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71205 conditions, 25803 events. 19100/25803 cut-off events. For 19682/19682 co-relation queries the response was YES. Maximal size of possible extension queue 827. Compared 134256 event pairs, 4477 based on Foata normal form. 175/25978 useless extension candidates. Maximal degree in co-relation 71197. Up to 10519 conditions per place. [2023-11-12 02:25:37,180 INFO L140 encePairwiseOnDemand]: 287/296 looper letters, 65 selfloop transitions, 10 changer transitions 4/79 dead transitions. [2023-11-12 02:25:37,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 79 transitions, 494 flow [2023-11-12 02:25:37,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:25:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:25:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 555 transitions. [2023-11-12 02:25:37,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46875 [2023-11-12 02:25:37,183 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 555 transitions. [2023-11-12 02:25:37,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 555 transitions. [2023-11-12 02:25:37,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:37,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 555 transitions. [2023-11-12 02:25:37,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states 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 02:25:37,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states 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 02:25:37,189 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states 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 02:25:37,190 INFO L175 Difference]: Start difference. First operand has 53 places, 43 transitions, 202 flow. Second operand 4 states and 555 transitions. [2023-11-12 02:25:37,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 79 transitions, 494 flow [2023-11-12 02:25:37,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 79 transitions, 482 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:25:37,204 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 278 flow [2023-11-12 02:25:37,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2023-11-12 02:25:37,206 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2023-11-12 02:25:37,207 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 278 flow [2023-11-12 02:25:37,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 0 states have call successors, (0), 0 states 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 02:25:37,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:37,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:37,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:25:37,208 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 02:25:37,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:37,208 INFO L85 PathProgramCache]: Analyzing trace with hash -344405884, now seen corresponding path program 1 times [2023-11-12 02:25:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:37,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099741015] [2023-11-12 02:25:37,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:37,426 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 02:25:37,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:37,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099741015] [2023-11-12 02:25:37,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099741015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:37,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:37,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:25:37,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433306032] [2023-11-12 02:25:37,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:37,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:25:37,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:37,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:25:37,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:25:37,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 296 [2023-11-12 02:25:37,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 127.25) internal successors, (509), 4 states have internal predecessors, (509), 0 states have call successors, (0), 0 states 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 02:25:37,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:37,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 296 [2023-11-12 02:25:37,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:39,253 INFO L124 PetriNetUnfolderBase]: 9107/13448 cut-off events. [2023-11-12 02:25:39,253 INFO L125 PetriNetUnfolderBase]: For 15729/16667 co-relation queries the response was YES. [2023-11-12 02:25:39,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35705 conditions, 13448 events. 9107/13448 cut-off events. For 15729/16667 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 84039 event pairs, 1526 based on Foata normal form. 1154/14329 useless extension candidates. Maximal degree in co-relation 35695. Up to 8256 conditions per place. [2023-11-12 02:25:39,351 INFO L140 encePairwiseOnDemand]: 289/296 looper letters, 92 selfloop transitions, 10 changer transitions 0/117 dead transitions. [2023-11-12 02:25:39,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 117 transitions, 820 flow [2023-11-12 02:25:39,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:25:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:25:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 692 transitions. [2023-11-12 02:25:39,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46756756756756757 [2023-11-12 02:25:39,355 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 692 transitions. [2023-11-12 02:25:39,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 692 transitions. [2023-11-12 02:25:39,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:39,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 692 transitions. [2023-11-12 02:25:39,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.4) internal successors, (692), 5 states have internal predecessors, (692), 0 states have call successors, (0), 0 states 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 02:25:39,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states 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 02:25:39,362 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states 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 02:25:39,362 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 278 flow. Second operand 5 states and 692 transitions. [2023-11-12 02:25:39,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 117 transitions, 820 flow [2023-11-12 02:25:39,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 117 transitions, 809 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-12 02:25:39,412 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 345 flow [2023-11-12 02:25:39,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=345, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2023-11-12 02:25:39,413 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 4 predicate places. [2023-11-12 02:25:39,413 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 345 flow [2023-11-12 02:25:39,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.25) internal successors, (509), 4 states have internal predecessors, (509), 0 states have call successors, (0), 0 states 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 02:25:39,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:39,413 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 02:25:39,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:25:39,414 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 02:25:39,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:39,414 INFO L85 PathProgramCache]: Analyzing trace with hash 2008505803, now seen corresponding path program 1 times [2023-11-12 02:25:39,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:39,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100477315] [2023-11-12 02:25:39,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:39,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:39,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:39,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100477315] [2023-11-12 02:25:39,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100477315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:39,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:39,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:25:39,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236393237] [2023-11-12 02:25:39,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:39,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:25:39,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:39,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:25:39,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:25:39,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 296 [2023-11-12 02:25:39,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 345 flow. Second operand has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 02:25:39,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:39,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 296 [2023-11-12 02:25:39,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:41,307 INFO L124 PetriNetUnfolderBase]: 7259/11029 cut-off events. [2023-11-12 02:25:41,307 INFO L125 PetriNetUnfolderBase]: For 15702/16352 co-relation queries the response was YES. [2023-11-12 02:25:41,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35969 conditions, 11029 events. 7259/11029 cut-off events. For 15702/16352 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 70472 event pairs, 824 based on Foata normal form. 761/11574 useless extension candidates. Maximal degree in co-relation 35956. Up to 3327 conditions per place. [2023-11-12 02:25:41,409 INFO L140 encePairwiseOnDemand]: 289/296 looper letters, 128 selfloop transitions, 19 changer transitions 0/162 dead transitions. [2023-11-12 02:25:41,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 162 transitions, 1210 flow [2023-11-12 02:25:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:25:41,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:25:41,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 971 transitions. [2023-11-12 02:25:41,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4686293436293436 [2023-11-12 02:25:41,419 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 971 transitions. [2023-11-12 02:25:41,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 971 transitions. [2023-11-12 02:25:41,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:41,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 971 transitions. [2023-11-12 02:25:41,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.71428571428572) internal successors, (971), 7 states have internal predecessors, (971), 0 states have call successors, (0), 0 states 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 02:25:41,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 296.0) internal successors, (2368), 8 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states 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 02:25:41,434 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 296.0) internal successors, (2368), 8 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states 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 02:25:41,435 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 345 flow. Second operand 7 states and 971 transitions. [2023-11-12 02:25:41,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 162 transitions, 1210 flow [2023-11-12 02:25:41,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 162 transitions, 1205 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:25:41,532 INFO L231 Difference]: Finished difference. Result has 65 places, 65 transitions, 474 flow [2023-11-12 02:25:41,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=474, PETRI_PLACES=65, PETRI_TRANSITIONS=65} [2023-11-12 02:25:41,533 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2023-11-12 02:25:41,533 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 65 transitions, 474 flow [2023-11-12 02:25:41,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 02:25:41,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:41,534 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 02:25:41,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:25:41,534 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 02:25:41,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash -818328148, now seen corresponding path program 1 times [2023-11-12 02:25:41,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:41,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901634523] [2023-11-12 02:25:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,782 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 02:25:41,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:41,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901634523] [2023-11-12 02:25:41,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901634523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:41,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:41,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:25:41,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727270576] [2023-11-12 02:25:41,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:41,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:25:41,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:41,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:25:41,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:25:41,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 296 [2023-11-12 02:25:41,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 65 transitions, 474 flow. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states 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 02:25:41,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:41,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 296 [2023-11-12 02:25:41,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:44,503 INFO L124 PetriNetUnfolderBase]: 14601/21185 cut-off events. [2023-11-12 02:25:44,503 INFO L125 PetriNetUnfolderBase]: For 64934/64934 co-relation queries the response was YES. [2023-11-12 02:25:44,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85249 conditions, 21185 events. 14601/21185 cut-off events. For 64934/64934 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 128127 event pairs, 2657 based on Foata normal form. 74/21259 useless extension candidates. Maximal degree in co-relation 85233. Up to 9917 conditions per place. [2023-11-12 02:25:44,645 INFO L140 encePairwiseOnDemand]: 287/296 looper letters, 88 selfloop transitions, 22 changer transitions 41/151 dead transitions. [2023-11-12 02:25:44,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 151 transitions, 1398 flow [2023-11-12 02:25:44,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:25:44,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:25:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 563 transitions. [2023-11-12 02:25:44,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47550675675675674 [2023-11-12 02:25:44,650 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 563 transitions. [2023-11-12 02:25:44,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 563 transitions. [2023-11-12 02:25:44,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:44,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 563 transitions. [2023-11-12 02:25:44,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.75) internal successors, (563), 4 states have internal predecessors, (563), 0 states have call successors, (0), 0 states 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 02:25:44,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states 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 02:25:44,658 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states 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 02:25:44,658 INFO L175 Difference]: Start difference. First operand has 65 places, 65 transitions, 474 flow. Second operand 4 states and 563 transitions. [2023-11-12 02:25:44,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 151 transitions, 1398 flow [2023-11-12 02:25:47,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 151 transitions, 1252 flow, removed 51 selfloop flow, removed 3 redundant places. [2023-11-12 02:25:47,799 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 540 flow [2023-11-12 02:25:47,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=540, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2023-11-12 02:25:47,801 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2023-11-12 02:25:47,801 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 540 flow [2023-11-12 02:25:47,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states 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 02:25:47,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:47,802 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] [2023-11-12 02:25:47,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:25:47,802 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 02:25:47,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:47,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2117832903, now seen corresponding path program 1 times [2023-11-12 02:25:47,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:47,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650943958] [2023-11-12 02:25:47,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:47,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:48,067 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 02:25:48,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:48,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650943958] [2023-11-12 02:25:48,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650943958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:48,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:48,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:25:48,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706405754] [2023-11-12 02:25:48,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:48,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:25:48,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:48,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:25:48,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:25:48,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 296 [2023-11-12 02:25:48,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 540 flow. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 02:25:48,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:48,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 296 [2023-11-12 02:25:48,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:50,140 INFO L124 PetriNetUnfolderBase]: 8918/13526 cut-off events. [2023-11-12 02:25:50,140 INFO L125 PetriNetUnfolderBase]: For 40626/40626 co-relation queries the response was YES. [2023-11-12 02:25:50,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52722 conditions, 13526 events. 8918/13526 cut-off events. For 40626/40626 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 81493 event pairs, 2379 based on Foata normal form. 76/13602 useless extension candidates. Maximal degree in co-relation 52704. Up to 6607 conditions per place. [2023-11-12 02:25:50,237 INFO L140 encePairwiseOnDemand]: 288/296 looper letters, 89 selfloop transitions, 20 changer transitions 18/127 dead transitions. [2023-11-12 02:25:50,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 127 transitions, 1155 flow [2023-11-12 02:25:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:25:50,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:25:50,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 566 transitions. [2023-11-12 02:25:50,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4780405405405405 [2023-11-12 02:25:50,241 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 566 transitions. [2023-11-12 02:25:50,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 566 transitions. [2023-11-12 02:25:50,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:50,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 566 transitions. [2023-11-12 02:25:50,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.5) internal successors, (566), 4 states have internal predecessors, (566), 0 states have call successors, (0), 0 states 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 02:25:50,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states 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 02:25:50,248 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states 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 02:25:50,249 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 540 flow. Second operand 4 states and 566 transitions. [2023-11-12 02:25:50,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 127 transitions, 1155 flow [2023-11-12 02:25:50,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 127 transitions, 1113 flow, removed 21 selfloop flow, removed 3 redundant places. [2023-11-12 02:25:50,510 INFO L231 Difference]: Finished difference. Result has 66 places, 61 transitions, 543 flow [2023-11-12 02:25:50,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=543, PETRI_PLACES=66, PETRI_TRANSITIONS=61} [2023-11-12 02:25:50,511 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 13 predicate places. [2023-11-12 02:25:50,511 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 61 transitions, 543 flow [2023-11-12 02:25:50,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 02:25:50,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:50,512 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] [2023-11-12 02:25:50,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:25:50,512 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:25:50,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1771541302, now seen corresponding path program 1 times [2023-11-12 02:25:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:50,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750731103] [2023-11-12 02:25:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:50,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:50,962 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 02:25:50,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:50,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750731103] [2023-11-12 02:25:50,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750731103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:50,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:50,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:25:50,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253259323] [2023-11-12 02:25:50,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:50,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:25:50,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:50,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:25:50,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:25:50,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 296 [2023-11-12 02:25:50,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 543 flow. Second operand has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states 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 02:25:50,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:50,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 296 [2023-11-12 02:25:50,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:52,484 INFO L124 PetriNetUnfolderBase]: 4585/7418 cut-off events. [2023-11-12 02:25:52,485 INFO L125 PetriNetUnfolderBase]: For 16516/16927 co-relation queries the response was YES. [2023-11-12 02:25:52,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25931 conditions, 7418 events. 4585/7418 cut-off events. For 16516/16927 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 48644 event pairs, 909 based on Foata normal form. 527/7774 useless extension candidates. Maximal degree in co-relation 25913. Up to 2461 conditions per place. [2023-11-12 02:25:52,542 INFO L140 encePairwiseOnDemand]: 289/296 looper letters, 113 selfloop transitions, 17 changer transitions 26/171 dead transitions. [2023-11-12 02:25:52,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 171 transitions, 1711 flow [2023-11-12 02:25:52,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:25:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:25:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 972 transitions. [2023-11-12 02:25:52,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691119691119691 [2023-11-12 02:25:52,548 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 972 transitions. [2023-11-12 02:25:52,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 972 transitions. [2023-11-12 02:25:52,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:52,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 972 transitions. [2023-11-12 02:25:52,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.85714285714286) internal successors, (972), 7 states have internal predecessors, (972), 0 states have call successors, (0), 0 states 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 02:25:52,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 296.0) internal successors, (2368), 8 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states 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 02:25:52,561 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 296.0) internal successors, (2368), 8 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states 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 02:25:52,562 INFO L175 Difference]: Start difference. First operand has 66 places, 61 transitions, 543 flow. Second operand 7 states and 972 transitions. [2023-11-12 02:25:52,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 171 transitions, 1711 flow [2023-11-12 02:25:52,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 171 transitions, 1661 flow, removed 25 selfloop flow, removed 0 redundant places. [2023-11-12 02:25:52,608 INFO L231 Difference]: Finished difference. Result has 75 places, 68 transitions, 640 flow [2023-11-12 02:25:52,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=640, PETRI_PLACES=75, PETRI_TRANSITIONS=68} [2023-11-12 02:25:52,609 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 22 predicate places. [2023-11-12 02:25:52,609 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 68 transitions, 640 flow [2023-11-12 02:25:52,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states 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 02:25:52,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:52,610 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 02:25:52,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:25:52,611 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:25:52,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:52,612 INFO L85 PathProgramCache]: Analyzing trace with hash 535765323, now seen corresponding path program 1 times [2023-11-12 02:25:52,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:52,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428557641] [2023-11-12 02:25:52,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:52,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:53,854 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 02:25:53,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:53,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428557641] [2023-11-12 02:25:53,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428557641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:53,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:53,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:25:53,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401611777] [2023-11-12 02:25:53,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:53,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:25:53,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:53,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:25:53,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:25:53,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 296 [2023-11-12 02:25:53,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 68 transitions, 640 flow. Second operand has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states 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 02:25:53,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:53,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 296 [2023-11-12 02:25:53,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand