./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c01f4f7d2658db6d4a951cb25555f85a195a1e66c897cc0a3f349ba621d29da1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:18:42,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:18:42,283 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:18:42,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:18:42,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:18:42,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:18:42,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:18:42,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:18:42,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:18:42,327 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:18:42,327 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:18:42,328 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:18:42,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:18:42,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:18:42,329 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:18:42,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:18:42,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:18:42,329 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:18:42,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:18:42,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:18:42,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:18:42,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:18:42,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:18:42,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:18:42,331 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:18:42,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:18:42,331 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:18:42,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:18:42,331 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:18:42,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:18:42,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:18:42,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:18:42,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:18:42,332 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:18:42,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:18:42,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:18:42,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:18:42,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:18:42,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:18:42,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:18:42,333 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:18:42,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:18:42,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:18:42,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:18:42,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:18:42,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:18:42,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:18:42,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:18:42,334 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_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC 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 ! call(reach_error())) ) 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 -> c01f4f7d2658db6d4a951cb25555f85a195a1e66c897cc0a3f349ba621d29da1 [2024-11-24 01:18:42,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:18:42,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:18:42,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:18:42,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:18:42,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:18:42,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2024-11-24 01:18:45,670 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/data/9c1837448/4a979834917a443c96e19fd91690505f/FLAG33cee7aaa [2024-11-24 01:18:45,946 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:18:45,946 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2024-11-24 01:18:45,955 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/data/9c1837448/4a979834917a443c96e19fd91690505f/FLAG33cee7aaa [2024-11-24 01:18:45,971 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/data/9c1837448/4a979834917a443c96e19fd91690505f [2024-11-24 01:18:45,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:18:45,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:18:45,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:18:45,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:18:45,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:18:45,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:18:45" (1/1) ... [2024-11-24 01:18:45,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc7893c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:45, skipping insertion in model container [2024-11-24 01:18:45,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:18:45" (1/1) ... [2024-11-24 01:18:46,002 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:18:46,234 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[2888,2901] [2024-11-24 01:18:46,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:18:46,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:18:46,320 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[2888,2901] [2024-11-24 01:18:46,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:18:46,346 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:18:46,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46 WrapperNode [2024-11-24 01:18:46,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:18:46,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:18:46,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:18:46,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:18:46,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,402 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 148 [2024-11-24 01:18:46,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:18:46,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:18:46,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:18:46,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:18:46,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,444 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-24 01:18:46,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,459 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:18:46,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:18:46,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:18:46,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:18:46,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (1/1) ... [2024-11-24 01:18:46,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:18:46,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:18:46,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:18:46,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a4bfb5e-4be4-4ab3-b5be-c977083f2dac/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:18:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:18:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-24 01:18:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-24 01:18:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-24 01:18:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-24 01:18:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-24 01:18:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-24 01:18:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-24 01:18:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-24 01:18:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:18:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:18:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-24 01:18:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-24 01:18:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:18:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:18:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:18:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:18:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:18:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:18:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:18:46,587 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:18:46,749 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:18:46,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:18:47,314 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:18:47,314 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:18:47,682 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:18:47,684 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-24 01:18:47,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:18:47 BoogieIcfgContainer [2024-11-24 01:18:47,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:18:47,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:18:47,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:18:47,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:18:47,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:18:45" (1/3) ... [2024-11-24 01:18:47,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1787c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:18:47, skipping insertion in model container [2024-11-24 01:18:47,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:46" (2/3) ... [2024-11-24 01:18:47,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1787c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:18:47, skipping insertion in model container [2024-11-24 01:18:47,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:18:47" (3/3) ... [2024-11-24 01:18:47,697 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2024-11-24 01:18:47,716 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:18:47,718 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-min-max-inc-dec.wvr.c that has 6 procedures, 67 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-24 01:18:47,718 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:18:47,852 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-24 01:18:47,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 73 transitions, 181 flow [2024-11-24 01:18:47,991 INFO L124 PetriNetUnfolderBase]: 7/68 cut-off events. [2024-11-24 01:18:47,993 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-24 01:18:48,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 68 events. 7/68 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 174 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2024-11-24 01:18:48,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 73 transitions, 181 flow [2024-11-24 01:18:48,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 67 transitions, 164 flow [2024-11-24 01:18:48,026 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:18:48,047 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=LoopHeads, 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;@7464fb34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:18:48,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-24 01:18:48,102 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:18:48,102 INFO L124 PetriNetUnfolderBase]: 7/66 cut-off events. [2024-11-24 01:18:48,102 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-24 01:18:48,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:18:48,103 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:18:48,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-24 01:18:48,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:18:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash -903646323, now seen corresponding path program 1 times [2024-11-24 01:18:48,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:18:48,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91961690] [2024-11-24 01:18:48,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:18:48,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:18:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:18:48,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:18:48,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:18:48,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91961690] [2024-11-24 01:18:48,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91961690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:18:48,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:18:48,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:18:48,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678903875] [2024-11-24 01:18:48,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:18:48,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:18:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:18:48,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:18:48,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:18:48,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2024-11-24 01:18:48,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-24 01:18:48,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:18:48,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2024-11-24 01:18:48,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:19:00,447 INFO L124 PetriNetUnfolderBase]: 87344/116898 cut-off events. [2024-11-24 01:19:00,447 INFO L125 PetriNetUnfolderBase]: For 5804/5804 co-relation queries the response was YES. [2024-11-24 01:19:00,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226941 conditions, 116898 events. 87344/116898 cut-off events. For 5804/5804 co-relation queries the response was YES. Maximal size of possible extension queue 4929. Compared 817013 event pairs, 42022 based on Foata normal form. 1926/114963 useless extension candidates. Maximal degree in co-relation 213467. Up to 62298 conditions per place. [2024-11-24 01:19:01,601 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 71 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-24 01:19:01,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 96 transitions, 382 flow [2024-11-24 01:19:01,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:19:01,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 01:19:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2024-11-24 01:19:01,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6267123287671232 [2024-11-24 01:19:01,623 INFO L175 Difference]: Start difference. First operand has 76 places, 67 transitions, 164 flow. Second operand 4 states and 183 transitions. [2024-11-24 01:19:01,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 96 transitions, 382 flow [2024-11-24 01:19:01,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 96 transitions, 354 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-11-24 01:19:01,951 INFO L231 Difference]: Finished difference. Result has 70 places, 68 transitions, 158 flow [2024-11-24 01:19:01,953 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=70, PETRI_TRANSITIONS=68} [2024-11-24 01:19:01,958 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2024-11-24 01:19:01,959 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 68 transitions, 158 flow [2024-11-24 01:19:01,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-24 01:19:01,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:19:01,961 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:19:01,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:19:01,962 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-24 01:19:01,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:19:01,964 INFO L85 PathProgramCache]: Analyzing trace with hash -373303298, now seen corresponding path program 1 times [2024-11-24 01:19:01,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:19:01,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524549559] [2024-11-24 01:19:01,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:19:01,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:19:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:19:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:19:02,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:19:02,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524549559] [2024-11-24 01:19:02,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524549559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:19:02,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:19:02,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:19:02,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119467711] [2024-11-24 01:19:02,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:19:02,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:19:02,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:19:02,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:19:02,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:19:02,320 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 73 [2024-11-24 01:19:02,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 68 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-24 01:19:02,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:19:02,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 73 [2024-11-24 01:19:02,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:19:15,289 INFO L124 PetriNetUnfolderBase]: 127099/176412 cut-off events. [2024-11-24 01:19:15,290 INFO L125 PetriNetUnfolderBase]: For 15612/15612 co-relation queries the response was YES. [2024-11-24 01:19:15,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342353 conditions, 176412 events. 127099/176412 cut-off events. For 15612/15612 co-relation queries the response was YES. Maximal size of possible extension queue 6005. Compared 1336873 event pairs, 66837 based on Foata normal form. 3014/170582 useless extension candidates. Maximal degree in co-relation 29294. Up to 100615 conditions per place. [2024-11-24 01:19:16,314 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 76 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2024-11-24 01:19:16,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 100 transitions, 394 flow [2024-11-24 01:19:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:19:16,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 01:19:16,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2024-11-24 01:19:16,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6232876712328768 [2024-11-24 01:19:16,317 INFO L175 Difference]: Start difference. First operand has 70 places, 68 transitions, 158 flow. Second operand 4 states and 182 transitions. [2024-11-24 01:19:16,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 100 transitions, 394 flow [2024-11-24 01:19:16,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 100 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:19:16,359 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 168 flow [2024-11-24 01:19:16,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2024-11-24 01:19:16,361 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, -4 predicate places. [2024-11-24 01:19:16,361 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 168 flow [2024-11-24 01:19:16,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-24 01:19:16,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:19:16,362 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:19:16,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:19:16,362 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-24 01:19:16,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:19:16,363 INFO L85 PathProgramCache]: Analyzing trace with hash -710933431, now seen corresponding path program 1 times [2024-11-24 01:19:16,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:19:16,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75568227] [2024-11-24 01:19:16,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:19:16,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:19:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:19:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:19:16,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:19:16,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75568227] [2024-11-24 01:19:16,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75568227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:19:16,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:19:16,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:19:16,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675709480] [2024-11-24 01:19:16,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:19:16,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:19:16,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:19:16,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:19:16,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:19:16,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 73 [2024-11-24 01:19:16,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2024-11-24 01:19:16,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:19:16,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 73 [2024-11-24 01:19:16,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand