./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:19:08,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:19:09,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:19:09,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:19:09,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:19:09,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:19:09,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:19:09,100 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:19:09,101 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:19:09,103 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:19:09,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:19:09,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:19:09,104 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:19:09,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:19:09,105 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:19:09,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:19:09,106 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:19:09,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:19:09,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:19:09,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:19:09,109 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:19:09,112 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:19:09,113 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:19:09,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:19:09,113 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:19:09,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:19:09,114 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:19:09,114 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:19:09,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:19:09,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:19:09,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:19:09,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:19:09,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:19:09,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:09,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:19:09,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:19:09,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:19:09,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:19:09,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:19:09,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:19:09,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:19:09,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:19:09,124 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_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 [2024-10-31 22:19:09,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:19:09,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:19:09,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:19:09,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:19:09,443 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:19:09,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i Unable to find full path for "g++" [2024-10-31 22:19:11,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:19:11,967 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:19:11,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-10-31 22:19:11,989 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/data/1c61cfd49/d44bb569ef9a404482690f2cd6c1d089/FLAG4d8503f88 [2024-10-31 22:19:12,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/data/1c61cfd49/d44bb569ef9a404482690f2cd6c1d089 [2024-10-31 22:19:12,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:19:12,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:19:12,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:12,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:19:12,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:19:12,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:12,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff5fa3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12, skipping insertion in model container [2024-10-31 22:19:12,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:12,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:19:12,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:12,812 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:19:12,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:13,054 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:19:13,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13 WrapperNode [2024-10-31 22:19:13,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:13,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:13,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:19:13,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:19:13,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,121 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-10-31 22:19:13,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:13,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:19:13,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:19:13,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:19:13,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,167 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:19:13,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:19:13,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:19:13,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:19:13,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:19:13,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (1/1) ... [2024-10-31 22:19:13,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:13,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:13,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:13,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44740cd8-12c4-43ca-aca5-45bc97e69c38/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:19:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:19:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:19:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:19:13,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:19:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:19:13,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:19:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:19:13,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:19:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:19:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:19:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:19:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:19:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:19:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:19:13,296 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:19:13,467 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:19:13,470 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:19:13,935 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:19:13,938 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:19:14,290 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:19:14,291 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:19:14,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:14 BoogieIcfgContainer [2024-10-31 22:19:14,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:19:14,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:19:14,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:19:14,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:19:14,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:19:12" (1/3) ... [2024-10-31 22:19:14,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5c9e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:14, skipping insertion in model container [2024-10-31 22:19:14,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:13" (2/3) ... [2024-10-31 22:19:14,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5c9e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:14, skipping insertion in model container [2024-10-31 22:19:14,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:14" (3/3) ... [2024-10-31 22:19:14,303 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2024-10-31 22:19:14,323 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:19:14,323 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-31 22:19:14,323 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:19:14,388 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:19:14,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-10-31 22:19:14,476 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-10-31 22:19:14,476 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:14,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-10-31 22:19:14,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-10-31 22:19:14,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-10-31 22:19:14,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:19:14,515 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35acd517, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:19:14,516 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:19:14,521 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:19:14,522 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-31 22:19:14,522 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:14,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:14,523 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:19:14,524 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:19:14,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:14,531 INFO L85 PathProgramCache]: Analyzing trace with hash 12983834, now seen corresponding path program 1 times [2024-10-31 22:19:14,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:14,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109310795] [2024-10-31 22:19:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:14,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:15,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:15,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109310795] [2024-10-31 22:19:15,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109310795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:15,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:15,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:19:15,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049581185] [2024-10-31 22:19:15,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:15,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:15,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:15,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:15,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:15,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-10-31 22:19:15,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:15,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:15,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-10-31 22:19:15,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:16,791 INFO L124 PetriNetUnfolderBase]: 3311/5438 cut-off events. [2024-10-31 22:19:16,791 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:19:16,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10118 conditions, 5438 events. 3311/5438 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 38970 event pairs, 593 based on Foata normal form. 288/5671 useless extension candidates. Maximal degree in co-relation 10106. Up to 3661 conditions per place. [2024-10-31 22:19:16,846 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 41 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2024-10-31 22:19:16,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 243 flow [2024-10-31 22:19:16,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:16,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:19:16,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-10-31 22:19:16,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2024-10-31 22:19:16,863 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 125 transitions. [2024-10-31 22:19:16,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 243 flow [2024-10-31 22:19:16,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:19:16,872 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-10-31 22:19:16,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-10-31 22:19:16,881 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-10-31 22:19:16,882 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-10-31 22:19:16,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:16,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:16,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:16,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:19:16,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:19:16,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:16,886 INFO L85 PathProgramCache]: Analyzing trace with hash -455328883, now seen corresponding path program 1 times [2024-10-31 22:19:16,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:16,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020425392] [2024-10-31 22:19:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:16,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:17,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:17,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020425392] [2024-10-31 22:19:17,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020425392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:17,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:19:17,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649121640] [2024-10-31 22:19:17,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:17,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:17,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:17,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:17,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:17,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-10-31 22:19:17,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:17,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:17,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-10-31 22:19:17,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:18,188 INFO L124 PetriNetUnfolderBase]: 2903/4911 cut-off events. [2024-10-31 22:19:18,188 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-31 22:19:18,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9315 conditions, 4911 events. 2903/4911 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 34508 event pairs, 2903 based on Foata normal form. 144/4885 useless extension candidates. Maximal degree in co-relation 9305. Up to 4016 conditions per place. [2024-10-31 22:19:18,223 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 22 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-10-31 22:19:18,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 148 flow [2024-10-31 22:19:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:18,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:19:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-10-31 22:19:18,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2024-10-31 22:19:18,226 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 97 transitions. [2024-10-31 22:19:18,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 148 flow [2024-10-31 22:19:18,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:19:18,228 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-10-31 22:19:18,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-10-31 22:19:18,229 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-10-31 22:19:18,229 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-10-31 22:19:18,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:18,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:18,230 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:18,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:19:18,231 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:19:18,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:18,231 INFO L85 PathProgramCache]: Analyzing trace with hash -455327595, now seen corresponding path program 1 times [2024-10-31 22:19:18,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:18,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477476665] [2024-10-31 22:19:18,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:18,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:18,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:18,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:18,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477476665] [2024-10-31 22:19:18,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477476665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:18,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:18,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:19:18,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790206919] [2024-10-31 22:19:18,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:18,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:19:18,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:18,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:19:18,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:19:18,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-10-31 22:19:18,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:18,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:18,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-10-31 22:19:18,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:22,717 INFO L124 PetriNetUnfolderBase]: 13249/19336 cut-off events. [2024-10-31 22:19:22,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:22,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37404 conditions, 19336 events. 13249/19336 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 978. Compared 131491 event pairs, 6447 based on Foata normal form. 0/18924 useless extension candidates. Maximal degree in co-relation 37398. Up to 11671 conditions per place. [2024-10-31 22:19:22,854 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 37 selfloop transitions, 5 changer transitions 58/114 dead transitions. [2024-10-31 22:19:22,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 114 transitions, 444 flow [2024-10-31 22:19:22,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:19:22,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:19:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 254 transitions. [2024-10-31 22:19:22,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5879629629629629 [2024-10-31 22:19:22,860 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 8 states and 254 transitions. [2024-10-31 22:19:22,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 114 transitions, 444 flow [2024-10-31 22:19:22,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 114 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:19:22,866 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 150 flow [2024-10-31 22:19:22,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2024-10-31 22:19:22,868 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2024-10-31 22:19:22,869 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 150 flow [2024-10-31 22:19:22,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:22,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:22,870 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:22,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:19:22,871 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:19:22,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash 317563961, now seen corresponding path program 1 times [2024-10-31 22:19:22,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:22,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447777518] [2024-10-31 22:19:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:22,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:23,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:23,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:23,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447777518] [2024-10-31 22:19:23,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447777518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:23,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:23,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:23,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588146403] [2024-10-31 22:19:23,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:23,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:19:23,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:23,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:19:23,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:19:23,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-10-31 22:19:23,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:23,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:23,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-10-31 22:19:23,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:26,371 INFO L124 PetriNetUnfolderBase]: 10019/14889 cut-off events. [2024-10-31 22:19:26,372 INFO L125 PetriNetUnfolderBase]: For 14331/14336 co-relation queries the response was YES. [2024-10-31 22:19:26,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39823 conditions, 14889 events. 10019/14889 cut-off events. For 14331/14336 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 99007 event pairs, 1683 based on Foata normal form. 390/15173 useless extension candidates. Maximal degree in co-relation 39811. Up to 9073 conditions per place. [2024-10-31 22:19:26,516 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 42 selfloop transitions, 3 changer transitions 51/110 dead transitions. [2024-10-31 22:19:26,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 110 transitions, 582 flow [2024-10-31 22:19:26,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:19:26,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:19:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-10-31 22:19:26,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6005291005291006 [2024-10-31 22:19:26,519 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 150 flow. Second operand 7 states and 227 transitions. [2024-10-31 22:19:26,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 110 transitions, 582 flow [2024-10-31 22:19:26,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 110 transitions, 569 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-10-31 22:19:26,940 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 160 flow [2024-10-31 22:19:26,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2024-10-31 22:19:26,943 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2024-10-31 22:19:26,945 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 160 flow [2024-10-31 22:19:26,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:26,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:26,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:26,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:19:26,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:19:26,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:26,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1397749510, now seen corresponding path program 1 times [2024-10-31 22:19:26,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:26,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720666764] [2024-10-31 22:19:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:26,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:27,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:27,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:27,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720666764] [2024-10-31 22:19:27,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720666764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:27,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:27,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:19:27,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258499816] [2024-10-31 22:19:27,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:27,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:19:27,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:27,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:19:27,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:19:27,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-31 22:19:27,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:27,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:27,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-31 22:19:27,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:31,096 INFO L124 PetriNetUnfolderBase]: 15258/22674 cut-off events. [2024-10-31 22:19:31,097 INFO L125 PetriNetUnfolderBase]: For 9680/9860 co-relation queries the response was YES. [2024-10-31 22:19:31,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51145 conditions, 22674 events. 15258/22674 cut-off events. For 9680/9860 co-relation queries the response was YES. Maximal size of possible extension queue 1208. Compared 157939 event pairs, 2440 based on Foata normal form. 681/22570 useless extension candidates. Maximal degree in co-relation 51129. Up to 11856 conditions per place. [2024-10-31 22:19:31,256 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 54 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2024-10-31 22:19:31,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 78 transitions, 350 flow [2024-10-31 22:19:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:19:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:19:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 142 transitions. [2024-10-31 22:19:31,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2024-10-31 22:19:31,259 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 160 flow. Second operand 4 states and 142 transitions. [2024-10-31 22:19:31,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 78 transitions, 350 flow [2024-10-31 22:19:31,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 78 transitions, 336 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-10-31 22:19:31,662 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 192 flow [2024-10-31 22:19:31,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2024-10-31 22:19:31,665 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-10-31 22:19:31,665 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 192 flow [2024-10-31 22:19:31,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:31,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:31,666 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:31,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:19:31,666 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:19:31,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:31,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1539788884, now seen corresponding path program 1 times [2024-10-31 22:19:31,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:31,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469080819] [2024-10-31 22:19:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:31,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:31,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:31,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469080819] [2024-10-31 22:19:31,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469080819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:31,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:31,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:19:31,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909217146] [2024-10-31 22:19:31,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:31,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:19:31,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:31,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:19:31,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:19:32,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-31 22:19:32,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:32,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:32,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-31 22:19:32,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:34,618 INFO L124 PetriNetUnfolderBase]: 12088/18042 cut-off events. [2024-10-31 22:19:34,618 INFO L125 PetriNetUnfolderBase]: For 6157/6271 co-relation queries the response was YES. [2024-10-31 22:19:34,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43392 conditions, 18042 events. 12088/18042 cut-off events. For 6157/6271 co-relation queries the response was YES. Maximal size of possible extension queue 888. Compared 121003 event pairs, 1451 based on Foata normal form. 602/17994 useless extension candidates. Maximal degree in co-relation 43378. Up to 6665 conditions per place. [2024-10-31 22:19:34,721 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 70 selfloop transitions, 10 changer transitions 0/98 dead transitions. [2024-10-31 22:19:34,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 98 transitions, 475 flow [2024-10-31 22:19:34,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:19:34,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:19:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-10-31 22:19:34,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2024-10-31 22:19:34,723 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 192 flow. Second operand 5 states and 182 transitions. [2024-10-31 22:19:34,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 98 transitions, 475 flow [2024-10-31 22:19:34,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 472 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:19:34,728 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 257 flow [2024-10-31 22:19:34,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=257, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2024-10-31 22:19:34,729 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2024-10-31 22:19:34,729 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 257 flow [2024-10-31 22:19:34,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:34,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:34,730 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:34,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:19:34,730 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:19:34,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:34,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1477728951, now seen corresponding path program 1 times [2024-10-31 22:19:34,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:34,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963173298] [2024-10-31 22:19:34,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:34,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:35,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:35,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963173298] [2024-10-31 22:19:35,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963173298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:35,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:35,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:19:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185364890] [2024-10-31 22:19:35,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:35,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:19:35,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:35,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:19:35,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:19:36,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-10-31 22:19:36,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 257 flow. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:36,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:36,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-10-31 22:19:36,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand