./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd --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 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:57:06,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:57:06,622 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 12:57:06,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:57:06,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:57:06,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:57:06,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:57:06,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:57:06,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:57:06,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:57:06,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:57:06,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:57:06,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:57:06,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:57:06,653 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:57:06,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:57:06,653 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 12:57:06,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:57:06,655 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:57:06,655 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:57:06,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:57:06,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:57:06,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:57:06,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:57:06,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:57:06,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:57:06,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:57:06,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:57:06,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:57:06,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:57:06,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:57:06,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:57:06,656 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:57:06,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:57:06,657 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd 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 -> 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 [2024-11-13 12:57:06,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:57:06,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:57:06,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:57:06,999 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:57:06,999 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:57:07,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c Unable to find full path for "g++" [2024-11-13 12:57:09,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:57:09,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:57:09,427 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2024-11-13 12:57:09,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/data/92735c86d/2433b7eeca2b471ea28dc2815bb54170/FLAG0fd6d5d98 [2024-11-13 12:57:09,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/data/92735c86d/2433b7eeca2b471ea28dc2815bb54170 [2024-11-13 12:57:09,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:57:09,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:57:09,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:57:09,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:57:09,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:57:09,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b498ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09, skipping insertion in model container [2024-11-13 12:57:09,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,506 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:57:09,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:57:09,784 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:57:09,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:57:09,846 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:57:09,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09 WrapperNode [2024-11-13 12:57:09,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:57:09,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:57:09,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:57:09,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:57:09,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,900 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2024-11-13 12:57:09,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:57:09,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:57:09,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:57:09,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:57:09,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,947 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]. [2024-11-13 12:57:09,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:57:09,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:57:09,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:57:09,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:57:09,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (1/1) ... [2024-11-13 12:57:09,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:57:09,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:57:10,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:57:10,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:57:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:57:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 12:57:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 12:57:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 12:57:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 12:57:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-13 12:57:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-13 12:57:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-13 12:57:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-13 12:57:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:57:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-13 12:57:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-13 12:57:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-13 12:57:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-13 12:57:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:57:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:57:10,046 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 12:57:10,166 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:57:10,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:57:10,507 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:57:10,507 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:57:10,744 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:57:10,745 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 12:57:10,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:57:10 BoogieIcfgContainer [2024-11-13 12:57:10,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:57:10,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:57:10,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:57:10,754 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:57:10,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:57:09" (1/3) ... [2024-11-13 12:57:10,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611163ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:57:10, skipping insertion in model container [2024-11-13 12:57:10,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:09" (2/3) ... [2024-11-13 12:57:10,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611163ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:57:10, skipping insertion in model container [2024-11-13 12:57:10,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:57:10" (3/3) ... [2024-11-13 12:57:10,758 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2024-11-13 12:57:10,781 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:57:10,783 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG bench-exp3x3.wvr.c that has 7 procedures, 43 locations, 1 initial locations, 6 loop locations, and 2 error locations. [2024-11-13 12:57:10,783 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:57:10,874 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-13 12:57:10,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 138 flow [2024-11-13 12:57:10,985 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2024-11-13 12:57:10,987 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 12:57:10,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 42 events. 6/42 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-11-13 12:57:10,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 138 flow [2024-11-13 12:57:10,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 41 transitions, 118 flow [2024-11-13 12:57:11,005 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:57:11,020 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;@15b9a8c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:57:11,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-13 12:57:11,041 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:57:11,041 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-11-13 12:57:11,041 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 12:57:11,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:11,042 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, 1, 1, 1, 1, 1] [2024-11-13 12:57:11,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:11,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:11,048 INFO L85 PathProgramCache]: Analyzing trace with hash -45725607, now seen corresponding path program 1 times [2024-11-13 12:57:11,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:11,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286806192] [2024-11-13 12:57:11,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:11,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:11,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:11,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286806192] [2024-11-13 12:57:11,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286806192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:11,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:11,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:57:11,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068227793] [2024-11-13 12:57:11,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:11,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:57:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:11,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:57:11,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:57:11,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:11,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-13 12:57:11,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:11,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:11,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:14,605 INFO L124 PetriNetUnfolderBase]: 18895/21812 cut-off events. [2024-11-13 12:57:14,605 INFO L125 PetriNetUnfolderBase]: For 1387/1387 co-relation queries the response was YES. [2024-11-13 12:57:14,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44837 conditions, 21812 events. 18895/21812 cut-off events. For 1387/1387 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 69702 event pairs, 1570 based on Foata normal form. 2/11925 useless extension candidates. Maximal degree in co-relation 38647. Up to 20725 conditions per place. [2024-11-13 12:57:14,806 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 53 selfloop transitions, 7 changer transitions 1/68 dead transitions. [2024-11-13 12:57:14,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 327 flow [2024-11-13 12:57:14,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:57:14,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:57:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-13 12:57:14,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-13 12:57:14,829 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 118 flow. Second operand 3 states and 105 transitions. [2024-11-13 12:57:14,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 327 flow [2024-11-13 12:57:14,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 281 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-13 12:57:14,883 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 137 flow [2024-11-13 12:57:14,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2024-11-13 12:57:14,892 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2024-11-13 12:57:14,892 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 137 flow [2024-11-13 12:57:14,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-13 12:57:14,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:14,894 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:14,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:57:14,896 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:14,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:14,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1945095727, now seen corresponding path program 1 times [2024-11-13 12:57:14,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:14,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376701623] [2024-11-13 12:57:14,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:14,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:15,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:15,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376701623] [2024-11-13 12:57:15,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376701623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:15,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:15,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:15,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976525530] [2024-11-13 12:57:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:15,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:15,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:15,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:15,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:15,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:15,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:15,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:17,791 INFO L124 PetriNetUnfolderBase]: 23913/27762 cut-off events. [2024-11-13 12:57:17,792 INFO L125 PetriNetUnfolderBase]: For 6109/6109 co-relation queries the response was YES. [2024-11-13 12:57:17,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69050 conditions, 27762 events. 23913/27762 cut-off events. For 6109/6109 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 96006 event pairs, 2290 based on Foata normal form. 294/27968 useless extension candidates. Maximal degree in co-relation 18918. Up to 12328 conditions per place. [2024-11-13 12:57:17,995 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 106 selfloop transitions, 10 changer transitions 0/123 dead transitions. [2024-11-13 12:57:17,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 123 transitions, 595 flow [2024-11-13 12:57:17,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:17,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-11-13 12:57:18,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-13 12:57:18,000 INFO L175 Difference]: Start difference. First operand has 43 places, 45 transitions, 137 flow. Second operand 5 states and 176 transitions. [2024-11-13 12:57:18,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 123 transitions, 595 flow [2024-11-13 12:57:18,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 123 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:57:18,008 INFO L231 Difference]: Finished difference. Result has 48 places, 52 transitions, 195 flow [2024-11-13 12:57:18,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=48, PETRI_TRANSITIONS=52} [2024-11-13 12:57:18,009 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -6 predicate places. [2024-11-13 12:57:18,010 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 52 transitions, 195 flow [2024-11-13 12:57:18,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:18,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:18,012 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:18,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:57:18,012 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:18,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:18,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2067084843, now seen corresponding path program 1 times [2024-11-13 12:57:18,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:18,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793868419] [2024-11-13 12:57:18,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:18,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:18,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:18,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793868419] [2024-11-13 12:57:18,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793868419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:18,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:18,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:18,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149279170] [2024-11-13 12:57:18,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:18,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:18,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:18,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:18,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:18,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 52 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:18,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:18,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:18,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:20,831 INFO L124 PetriNetUnfolderBase]: 32161/37998 cut-off events. [2024-11-13 12:57:20,831 INFO L125 PetriNetUnfolderBase]: For 32930/32930 co-relation queries the response was YES. [2024-11-13 12:57:20,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110465 conditions, 37998 events. 32161/37998 cut-off events. For 32930/32930 co-relation queries the response was YES. Maximal size of possible extension queue 1334. Compared 148831 event pairs, 4639 based on Foata normal form. 768/38340 useless extension candidates. Maximal degree in co-relation 39559. Up to 18246 conditions per place. [2024-11-13 12:57:21,092 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 122 selfloop transitions, 8 changer transitions 0/137 dead transitions. [2024-11-13 12:57:21,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 137 transitions, 796 flow [2024-11-13 12:57:21,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:21,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-11-13 12:57:21,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7125 [2024-11-13 12:57:21,094 INFO L175 Difference]: Start difference. First operand has 48 places, 52 transitions, 195 flow. Second operand 5 states and 171 transitions. [2024-11-13 12:57:21,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 137 transitions, 796 flow [2024-11-13 12:57:21,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 137 transitions, 796 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 12:57:21,103 INFO L231 Difference]: Finished difference. Result has 55 places, 57 transitions, 250 flow [2024-11-13 12:57:21,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=55, PETRI_TRANSITIONS=57} [2024-11-13 12:57:21,104 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2024-11-13 12:57:21,104 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 57 transitions, 250 flow [2024-11-13 12:57:21,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:21,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:21,105 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:21,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:57:21,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:21,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:21,106 INFO L85 PathProgramCache]: Analyzing trace with hash 552163784, now seen corresponding path program 1 times [2024-11-13 12:57:21,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:21,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166692067] [2024-11-13 12:57:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:21,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:21,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:21,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166692067] [2024-11-13 12:57:21,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166692067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:21,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:21,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:21,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646425518] [2024-11-13 12:57:21,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:21,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:21,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:21,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:21,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:21,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:21,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 57 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:21,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:21,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:21,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:23,883 INFO L124 PetriNetUnfolderBase]: 32155/37926 cut-off events. [2024-11-13 12:57:23,883 INFO L125 PetriNetUnfolderBase]: For 52254/52254 co-relation queries the response was YES. [2024-11-13 12:57:23,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125448 conditions, 37926 events. 32155/37926 cut-off events. For 52254/52254 co-relation queries the response was YES. Maximal size of possible extension queue 1320. Compared 148019 event pairs, 2808 based on Foata normal form. 544/38361 useless extension candidates. Maximal degree in co-relation 66479. Up to 16770 conditions per place. [2024-11-13 12:57:24,157 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 125 selfloop transitions, 8 changer transitions 0/140 dead transitions. [2024-11-13 12:57:24,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 140 transitions, 849 flow [2024-11-13 12:57:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-13 12:57:24,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-13 12:57:24,159 INFO L175 Difference]: Start difference. First operand has 55 places, 57 transitions, 250 flow. Second operand 5 states and 174 transitions. [2024-11-13 12:57:24,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 140 transitions, 849 flow [2024-11-13 12:57:24,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 140 transitions, 849 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 12:57:24,275 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 264 flow [2024-11-13 12:57:24,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2024-11-13 12:57:24,276 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 6 predicate places. [2024-11-13 12:57:24,276 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 264 flow [2024-11-13 12:57:24,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:24,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:24,277 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:24,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:57:24,277 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:24,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:24,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2106398148, now seen corresponding path program 1 times [2024-11-13 12:57:24,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:24,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328589772] [2024-11-13 12:57:24,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:24,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:24,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328589772] [2024-11-13 12:57:24,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328589772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:24,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:24,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:24,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35327272] [2024-11-13 12:57:24,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:24,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:24,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:24,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:24,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:24,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 264 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:24,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:24,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:24,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:26,889 INFO L124 PetriNetUnfolderBase]: 31734/37524 cut-off events. [2024-11-13 12:57:26,889 INFO L125 PetriNetUnfolderBase]: For 61857/61857 co-relation queries the response was YES. [2024-11-13 12:57:26,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129747 conditions, 37524 events. 31734/37524 cut-off events. For 61857/61857 co-relation queries the response was YES. Maximal size of possible extension queue 1322. Compared 146452 event pairs, 1547 based on Foata normal form. 437/37822 useless extension candidates. Maximal degree in co-relation 69655. Up to 16345 conditions per place. [2024-11-13 12:57:27,053 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 125 selfloop transitions, 10 changer transitions 0/142 dead transitions. [2024-11-13 12:57:27,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 142 transitions, 952 flow [2024-11-13 12:57:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-11-13 12:57:27,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2024-11-13 12:57:27,055 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 264 flow. Second operand 5 states and 167 transitions. [2024-11-13 12:57:27,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 142 transitions, 952 flow [2024-11-13 12:57:27,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 142 transitions, 931 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:57:27,335 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 320 flow [2024-11-13 12:57:27,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2024-11-13 12:57:27,336 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2024-11-13 12:57:27,336 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 320 flow [2024-11-13 12:57:27,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:27,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:27,337 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:27,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:57:27,337 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:27,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:27,338 INFO L85 PathProgramCache]: Analyzing trace with hash 366250481, now seen corresponding path program 2 times [2024-11-13 12:57:27,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:27,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055904573] [2024-11-13 12:57:27,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:27,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:27,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:27,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:27,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055904573] [2024-11-13 12:57:27,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055904573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:27,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:27,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:27,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470732639] [2024-11-13 12:57:27,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:27,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:27,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:27,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:27,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:27,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:27,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:27,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:27,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:27,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:30,185 INFO L124 PetriNetUnfolderBase]: 30382/36202 cut-off events. [2024-11-13 12:57:30,185 INFO L125 PetriNetUnfolderBase]: For 67629/67629 co-relation queries the response was YES. [2024-11-13 12:57:30,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130955 conditions, 36202 events. 30382/36202 cut-off events. For 67629/67629 co-relation queries the response was YES. Maximal size of possible extension queue 1304. Compared 148675 event pairs, 7529 based on Foata normal form. 874/36697 useless extension candidates. Maximal degree in co-relation 62733. Up to 19668 conditions per place. [2024-11-13 12:57:30,344 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 140 selfloop transitions, 8 changer transitions 0/155 dead transitions. [2024-11-13 12:57:30,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 155 transitions, 1084 flow [2024-11-13 12:57:30,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-11-13 12:57:30,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-13 12:57:30,345 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 320 flow. Second operand 5 states and 175 transitions. [2024-11-13 12:57:30,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 155 transitions, 1084 flow [2024-11-13 12:57:30,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 155 transitions, 1036 flow, removed 16 selfloop flow, removed 1 redundant places. [2024-11-13 12:57:30,417 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 355 flow [2024-11-13 12:57:30,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=355, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2024-11-13 12:57:30,418 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 15 predicate places. [2024-11-13 12:57:30,418 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 355 flow [2024-11-13 12:57:30,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:30,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:30,418 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:30,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:57:30,419 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:30,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:30,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1252102575, now seen corresponding path program 1 times [2024-11-13 12:57:30,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:30,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563258583] [2024-11-13 12:57:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:30,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:30,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:30,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:30,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563258583] [2024-11-13 12:57:30,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563258583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:30,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:30,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:30,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648894303] [2024-11-13 12:57:30,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:30,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:30,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:30,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:30,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:30,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:30,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 355 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:30,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:30,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:30,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:34,466 INFO L124 PetriNetUnfolderBase]: 40645/49318 cut-off events. [2024-11-13 12:57:34,466 INFO L125 PetriNetUnfolderBase]: For 135515/135521 co-relation queries the response was YES. [2024-11-13 12:57:34,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191854 conditions, 49318 events. 40645/49318 cut-off events. For 135515/135521 co-relation queries the response was YES. Maximal size of possible extension queue 1939. Compared 222269 event pairs, 6741 based on Foata normal form. 911/49361 useless extension candidates. Maximal degree in co-relation 122743. Up to 22248 conditions per place. [2024-11-13 12:57:34,714 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 160 selfloop transitions, 8 changer transitions 0/175 dead transitions. [2024-11-13 12:57:34,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 175 transitions, 1395 flow [2024-11-13 12:57:34,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2024-11-13 12:57:34,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6708333333333333 [2024-11-13 12:57:34,716 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 355 flow. Second operand 5 states and 161 transitions. [2024-11-13 12:57:34,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 175 transitions, 1395 flow [2024-11-13 12:57:34,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 175 transitions, 1368 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-13 12:57:34,853 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 401 flow [2024-11-13 12:57:34,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=401, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2024-11-13 12:57:34,853 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 21 predicate places. [2024-11-13 12:57:34,854 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 401 flow [2024-11-13 12:57:34,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:34,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:34,854 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:34,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:57:34,854 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:34,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:34,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1450586089, now seen corresponding path program 2 times [2024-11-13 12:57:34,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:34,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137515119] [2024-11-13 12:57:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:34,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:34,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:34,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137515119] [2024-11-13 12:57:34,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137515119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:34,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:34,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:34,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815392703] [2024-11-13 12:57:34,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:34,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:34,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:34,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:34,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:34,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:34,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 401 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:34,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:34,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:34,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:38,666 INFO L124 PetriNetUnfolderBase]: 36479/44072 cut-off events. [2024-11-13 12:57:38,667 INFO L125 PetriNetUnfolderBase]: For 128559/128565 co-relation queries the response was YES. [2024-11-13 12:57:38,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188414 conditions, 44072 events. 36479/44072 cut-off events. For 128559/128565 co-relation queries the response was YES. Maximal size of possible extension queue 1680. Compared 189289 event pairs, 2512 based on Foata normal form. 453/43961 useless extension candidates. Maximal degree in co-relation 120499. Up to 19734 conditions per place. [2024-11-13 12:57:38,890 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 166 selfloop transitions, 11 changer transitions 0/184 dead transitions. [2024-11-13 12:57:38,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 184 transitions, 1505 flow [2024-11-13 12:57:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:38,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:38,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-11-13 12:57:38,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-13 12:57:38,892 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 401 flow. Second operand 5 states and 160 transitions. [2024-11-13 12:57:38,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 184 transitions, 1505 flow [2024-11-13 12:57:39,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 184 transitions, 1505 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 12:57:39,815 INFO L231 Difference]: Finished difference. Result has 80 places, 74 transitions, 462 flow [2024-11-13 12:57:39,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=462, PETRI_PLACES=80, PETRI_TRANSITIONS=74} [2024-11-13 12:57:39,816 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 26 predicate places. [2024-11-13 12:57:39,816 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 74 transitions, 462 flow [2024-11-13 12:57:39,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:39,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:39,817 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:39,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:57:39,817 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:39,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1703310966, now seen corresponding path program 1 times [2024-11-13 12:57:39,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:39,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184404246] [2024-11-13 12:57:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:39,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:39,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:39,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184404246] [2024-11-13 12:57:39,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184404246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:39,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:39,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:39,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364009668] [2024-11-13 12:57:39,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:39,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:39,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:39,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:39,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:39,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:39,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 462 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:39,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:39,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:39,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:43,555 INFO L124 PetriNetUnfolderBase]: 36021/43614 cut-off events. [2024-11-13 12:57:43,555 INFO L125 PetriNetUnfolderBase]: For 141701/141707 co-relation queries the response was YES. [2024-11-13 12:57:43,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195955 conditions, 43614 events. 36021/43614 cut-off events. For 141701/141707 co-relation queries the response was YES. Maximal size of possible extension queue 1679. Compared 189210 event pairs, 2107 based on Foata normal form. 459/43509 useless extension candidates. Maximal degree in co-relation 125305. Up to 19506 conditions per place. [2024-11-13 12:57:43,856 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 166 selfloop transitions, 8 changer transitions 0/181 dead transitions. [2024-11-13 12:57:43,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 181 transitions, 1514 flow [2024-11-13 12:57:43,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:43,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-13 12:57:43,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2024-11-13 12:57:43,858 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 462 flow. Second operand 5 states and 158 transitions. [2024-11-13 12:57:43,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 181 transitions, 1514 flow [2024-11-13 12:57:44,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 181 transitions, 1503 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-13 12:57:44,749 INFO L231 Difference]: Finished difference. Result has 84 places, 73 transitions, 465 flow [2024-11-13 12:57:44,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=465, PETRI_PLACES=84, PETRI_TRANSITIONS=73} [2024-11-13 12:57:44,750 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 30 predicate places. [2024-11-13 12:57:44,751 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 73 transitions, 465 flow [2024-11-13 12:57:44,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:44,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:44,751 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:44,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:57:44,751 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:44,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:44,752 INFO L85 PathProgramCache]: Analyzing trace with hash 227710270, now seen corresponding path program 2 times [2024-11-13 12:57:44,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:44,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342473077] [2024-11-13 12:57:44,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:44,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:44,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:44,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342473077] [2024-11-13 12:57:44,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342473077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:44,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:44,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:44,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224983309] [2024-11-13 12:57:44,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:44,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:44,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:44,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:44,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:44,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 73 transitions, 465 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:44,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:44,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:44,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:48,593 INFO L124 PetriNetUnfolderBase]: 35117/42862 cut-off events. [2024-11-13 12:57:48,594 INFO L125 PetriNetUnfolderBase]: For 144227/144233 co-relation queries the response was YES. [2024-11-13 12:57:48,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196463 conditions, 42862 events. 35117/42862 cut-off events. For 144227/144233 co-relation queries the response was YES. Maximal size of possible extension queue 1622. Compared 194054 event pairs, 6301 based on Foata normal form. 905/43051 useless extension candidates. Maximal degree in co-relation 125628. Up to 22291 conditions per place. [2024-11-13 12:57:48,918 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 160 selfloop transitions, 8 changer transitions 0/175 dead transitions. [2024-11-13 12:57:48,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 175 transitions, 1475 flow [2024-11-13 12:57:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:48,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-13 12:57:48,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-13 12:57:48,920 INFO L175 Difference]: Start difference. First operand has 84 places, 73 transitions, 465 flow. Second operand 5 states and 156 transitions. [2024-11-13 12:57:48,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 175 transitions, 1475 flow [2024-11-13 12:57:49,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 175 transitions, 1462 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-13 12:57:49,768 INFO L231 Difference]: Finished difference. Result has 89 places, 76 transitions, 505 flow [2024-11-13 12:57:49,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=505, PETRI_PLACES=89, PETRI_TRANSITIONS=76} [2024-11-13 12:57:49,769 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 35 predicate places. [2024-11-13 12:57:49,769 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 76 transitions, 505 flow [2024-11-13 12:57:49,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:49,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:49,770 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:49,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:57:49,770 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:49,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:49,771 INFO L85 PathProgramCache]: Analyzing trace with hash -203359407, now seen corresponding path program 2 times [2024-11-13 12:57:49,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:49,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306245051] [2024-11-13 12:57:49,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:49,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:49,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:49,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306245051] [2024-11-13 12:57:49,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306245051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:57:49,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:57:49,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:57:49,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896522540] [2024-11-13 12:57:49,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:57:49,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:57:49,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:49,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:57:49,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:57:49,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:49,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 76 transitions, 505 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:49,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:49,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:49,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:57:52,995 INFO L124 PetriNetUnfolderBase]: 30549/36864 cut-off events. [2024-11-13 12:57:52,995 INFO L125 PetriNetUnfolderBase]: For 138684/138690 co-relation queries the response was YES. [2024-11-13 12:57:53,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175416 conditions, 36864 events. 30549/36864 cut-off events. For 138684/138690 co-relation queries the response was YES. Maximal size of possible extension queue 1366. Compared 155929 event pairs, 1948 based on Foata normal form. 493/37241 useless extension candidates. Maximal degree in co-relation 158181. Up to 16532 conditions per place. [2024-11-13 12:57:53,583 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 184 selfloop transitions, 9 changer transitions 0/200 dead transitions. [2024-11-13 12:57:53,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 200 transitions, 1771 flow [2024-11-13 12:57:53,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:57:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:57:53,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-11-13 12:57:53,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2024-11-13 12:57:53,585 INFO L175 Difference]: Start difference. First operand has 89 places, 76 transitions, 505 flow. Second operand 5 states and 167 transitions. [2024-11-13 12:57:53,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 200 transitions, 1771 flow [2024-11-13 12:57:53,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 200 transitions, 1705 flow, removed 20 selfloop flow, removed 2 redundant places. [2024-11-13 12:57:53,922 INFO L231 Difference]: Finished difference. Result has 92 places, 75 transitions, 500 flow [2024-11-13 12:57:53,922 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=500, PETRI_PLACES=92, PETRI_TRANSITIONS=75} [2024-11-13 12:57:53,922 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 38 predicate places. [2024-11-13 12:57:53,923 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 75 transitions, 500 flow [2024-11-13 12:57:53,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-13 12:57:53,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:57:53,923 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, 1, 1, 1, 1, 1, 1] [2024-11-13 12:57:53,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:57:53,923 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-13 12:57:53,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:57:53,923 INFO L85 PathProgramCache]: Analyzing trace with hash 709456716, now seen corresponding path program 2 times [2024-11-13 12:57:53,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:57:53,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330479530] [2024-11-13 12:57:53,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:57:53,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:57:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:57:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:54,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:57:54,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330479530] [2024-11-13 12:57:54,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330479530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:57:54,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140205046] [2024-11-13 12:57:54,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:57:54,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:57:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:57:54,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:57:54,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070c700-671b-412c-89c5-1e66a967ee3e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:57:54,134 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 12:57:54,134 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:57:54,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:57:54,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:57:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:54,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:57:54,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:57:54,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140205046] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:57:54,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:57:54,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-13 12:57:54,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940676516] [2024-11-13 12:57:54,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:57:54,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:57:54,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:57:54,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:57:54,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:57:54,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-13 12:57:54,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 75 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-13 12:57:54,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:57:54,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-13 12:57:54,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand