./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme --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 abd7c6a811fa727af1a8295486441ec66634091da13d54772e1efa33885ef21c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:47:35,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:47:36,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:47:36,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:47:36,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:47:36,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:47:36,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:47:36,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:47:36,066 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:47:36,067 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:47:36,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:47:36,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:47:36,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:47:36,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:47:36,071 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:47:36,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:47:36,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:47:36,073 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:47:36,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:47:36,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:47:36,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:47:36,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:47:36,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:47:36,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:47:36,077 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:47:36,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:47:36,079 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:47:36,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:47:36,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:47:36,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:47:36,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:47:36,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:36,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:47:36,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:47:36,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:47:36,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:47:36,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:47:36,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:47:36,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:47:36,086 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:47:36,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:47:36,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:47:36,088 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abd7c6a811fa727af1a8295486441ec66634091da13d54772e1efa33885ef21c [2023-11-26 10:47:36,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:47:36,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:47:36,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:47:36,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:47:36,410 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:47:36,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i [2023-11-26 10:47:39,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:47:39,995 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:47:39,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i [2023-11-26 10:47:40,031 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/data/1b5ab5908/c0f48e169d3442459d2198502fb51439/FLAG3a339cef1 [2023-11-26 10:47:40,046 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/data/1b5ab5908/c0f48e169d3442459d2198502fb51439 [2023-11-26 10:47:40,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:47:40,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:47:40,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:40,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:47:40,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:47:40,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619e0496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40, skipping insertion in model container [2023-11-26 10:47:40,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,114 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:47:40,319 WARN L240 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_f2541160-bc17-4f5f-85ae-c23116cd745d/sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i[1089,1102] [2023-11-26 10:47:40,562 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:40,577 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:40,590 WARN L240 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_f2541160-bc17-4f5f-85ae-c23116cd745d/sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i[1089,1102] [2023-11-26 10:47:40,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:40,659 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:40,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40 WrapperNode [2023-11-26 10:47:40,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:40,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:40,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:40,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:40,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,733 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-26 10:47:40,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:40,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:40,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:40,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:40,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,755 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,779 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 1, 5]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 0, 5]. The 1 writes are split as follows [0, 0, 1, 0]. [2023-11-26 10:47:40,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:40,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:40,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:40,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:40,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (1/1) ... [2023-11-26 10:47:40,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:40,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:40,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:40,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:40,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:47:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:47:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:47:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:47:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:47:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:47:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 10:47:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 10:47:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:47:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:47:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:47:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:47:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:47:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:47:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:40,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:40,946 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:47:41,173 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:41,177 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:41,363 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:41,559 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:41,559 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:47:41,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:41 BoogieIcfgContainer [2023-11-26 10:47:41,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:41,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:41,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:41,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:41,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:47:40" (1/3) ... [2023-11-26 10:47:41,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa16ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:41, skipping insertion in model container [2023-11-26 10:47:41,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:40" (2/3) ... [2023-11-26 10:47:41,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa16ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:41, skipping insertion in model container [2023-11-26 10:47:41,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:41" (3/3) ... [2023-11-26 10:47:41,576 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2023-11-26 10:47:41,585 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:47:41,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:41,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 10:47:41,596 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:47:41,632 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:47:41,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 27 transitions, 58 flow [2023-11-26 10:47:41,712 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2023-11-26 10:47:41,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:41,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 2/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-11-26 10:47:41,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 27 transitions, 58 flow [2023-11-26 10:47:41,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 23 transitions, 49 flow [2023-11-26 10:47:41,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:41,759 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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;@354c8a20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:41,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-26 10:47:41,784 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:47:41,785 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2023-11-26 10:47:41,786 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:41,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:41,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:41,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-26 10:47:41,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash 603122431, now seen corresponding path program 1 times [2023-11-26 10:47:41,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:41,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069566466] [2023-11-26 10:47:41,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:42,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:42,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069566466] [2023-11-26 10:47:42,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069566466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:42,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:42,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:47:42,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185982013] [2023-11-26 10:47:42,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:42,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:47:42,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:47:42,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:47:42,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2023-11-26 10:47:42,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:42,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2023-11-26 10:47:42,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:42,491 INFO L124 PetriNetUnfolderBase]: 73/183 cut-off events. [2023-11-26 10:47:42,491 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:42,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 183 events. 73/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 678 event pairs, 28 based on Foata normal form. 16/192 useless extension candidates. Maximal degree in co-relation 353. Up to 65 conditions per place. [2023-11-26 10:47:42,496 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 25 selfloop transitions, 8 changer transitions 5/41 dead transitions. [2023-11-26 10:47:42,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 41 transitions, 161 flow [2023-11-26 10:47:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:47:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 10:47:42,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2023-11-26 10:47:42,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740740740740741 [2023-11-26 10:47:42,518 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 64 transitions. [2023-11-26 10:47:42,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 64 transitions. [2023-11-26 10:47:42,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:42,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 64 transitions. [2023-11-26 10:47:42,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,535 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,537 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 5 states and 64 transitions. [2023-11-26 10:47:42,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 41 transitions, 161 flow [2023-11-26 10:47:42,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 41 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:47:42,544 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 102 flow [2023-11-26 10:47:42,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-11-26 10:47:42,554 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-11-26 10:47:42,554 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 102 flow [2023-11-26 10:47:42,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:42,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:42,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:47:42,561 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-26 10:47:42,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:42,562 INFO L85 PathProgramCache]: Analyzing trace with hash -898965594, now seen corresponding path program 1 times [2023-11-26 10:47:42,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:42,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889513143] [2023-11-26 10:47:42,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:42,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:42,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:42,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889513143] [2023-11-26 10:47:42,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889513143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:42,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:42,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:47:42,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279714211] [2023-11-26 10:47:42,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:42,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:42,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:42,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2023-11-26 10:47:42,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:42,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2023-11-26 10:47:42,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:42,887 INFO L124 PetriNetUnfolderBase]: 21/85 cut-off events. [2023-11-26 10:47:42,889 INFO L125 PetriNetUnfolderBase]: For 38/40 co-relation queries the response was YES. [2023-11-26 10:47:42,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 85 events. 21/85 cut-off events. For 38/40 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 254 event pairs, 4 based on Foata normal form. 8/93 useless extension candidates. Maximal degree in co-relation 216. Up to 42 conditions per place. [2023-11-26 10:47:42,891 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 13 selfloop transitions, 4 changer transitions 9/32 dead transitions. [2023-11-26 10:47:42,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 172 flow [2023-11-26 10:47:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:42,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2023-11-26 10:47:42,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2023-11-26 10:47:42,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 49 transitions. [2023-11-26 10:47:42,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 49 transitions. [2023-11-26 10:47:42,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:42,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 49 transitions. [2023-11-26 10:47:42,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,901 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,902 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 102 flow. Second operand 3 states and 49 transitions. [2023-11-26 10:47:42,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 172 flow [2023-11-26 10:47:42,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 164 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-26 10:47:42,908 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 78 flow [2023-11-26 10:47:42,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2023-11-26 10:47:42,912 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2023-11-26 10:47:42,912 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 78 flow [2023-11-26 10:47:42,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:42,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:42,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:47:42,916 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-26 10:47:42,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:42,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1482850724, now seen corresponding path program 1 times [2023-11-26 10:47:42,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:42,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133494985] [2023-11-26 10:47:42,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:42,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:43,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:43,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:43,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133494985] [2023-11-26 10:47:43,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133494985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:43,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:43,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:47:43,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228330463] [2023-11-26 10:47:43,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:43,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:47:43,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:43,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:47:43,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:43,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2023-11-26 10:47:43,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:43,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:43,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2023-11-26 10:47:43,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:43,247 INFO L124 PetriNetUnfolderBase]: 6/23 cut-off events. [2023-11-26 10:47:43,247 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:47:43,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 23 events. 6/23 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 62. Up to 19 conditions per place. [2023-11-26 10:47:43,248 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2023-11-26 10:47:43,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 12 transitions, 66 flow [2023-11-26 10:47:43,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:47:43,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 10:47:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2023-11-26 10:47:43,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2023-11-26 10:47:43,252 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 44 transitions. [2023-11-26 10:47:43,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 44 transitions. [2023-11-26 10:47:43,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:43,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 44 transitions. [2023-11-26 10:47:43,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:43,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:43,257 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:43,257 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 78 flow. Second operand 4 states and 44 transitions. [2023-11-26 10:47:43,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 12 transitions, 66 flow [2023-11-26 10:47:43,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 12 transitions, 51 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:47:43,260 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-11-26 10:47:43,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-11-26 10:47:43,262 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -7 predicate places. [2023-11-26 10:47:43,262 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-11-26 10:47:43,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:43,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-26 10:47:43,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-26 10:47:43,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-26 10:47:43,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:47:43,267 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 10:47:43,271 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:47:43,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:47:43,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:47:43 BasicIcfg [2023-11-26 10:47:43,283 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:47:43,284 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:47:43,284 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:47:43,285 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:47:43,285 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:41" (3/4) ... [2023-11-26 10:47:43,287 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:47:43,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-26 10:47:43,297 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-26 10:47:43,298 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-26 10:47:43,298 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 10:47:43,298 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:47:43,391 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:47:43,391 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:47:43,392 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:47:43,395 INFO L158 Benchmark]: Toolchain (without parser) took 3342.33ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 84.2MB in the beginning and 129.8MB in the end (delta: -45.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2023-11-26 10:47:43,395 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 96.5MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:47:43,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.59ms. Allocated memory is still 130.0MB. Free memory was 84.2MB in the beginning and 64.7MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 10:47:43,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.58ms. Allocated memory is still 130.0MB. Free memory was 64.7MB in the beginning and 62.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:43,397 INFO L158 Benchmark]: Boogie Preprocessor took 85.82ms. Allocated memory is still 130.0MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:43,397 INFO L158 Benchmark]: RCFGBuilder took 739.20ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 60.6MB in the beginning and 152.4MB in the end (delta: -91.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2023-11-26 10:47:43,399 INFO L158 Benchmark]: TraceAbstraction took 1716.44ms. Allocated memory is still 197.1MB. Free memory was 151.1MB in the beginning and 134.0MB in the end (delta: 17.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-26 10:47:43,402 INFO L158 Benchmark]: Witness Printer took 108.20ms. Allocated memory is still 197.1MB. Free memory was 134.0MB in the beginning and 129.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:47:43,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 96.5MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 604.59ms. Allocated memory is still 130.0MB. Free memory was 84.2MB in the beginning and 64.7MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.58ms. Allocated memory is still 130.0MB. Free memory was 64.7MB in the beginning and 62.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.82ms. Allocated memory is still 130.0MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 739.20ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 60.6MB in the beginning and 152.4MB in the end (delta: -91.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1716.44ms. Allocated memory is still 197.1MB. Free memory was 151.1MB in the beginning and 134.0MB in the end (delta: 17.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 108.20ms. Allocated memory is still 197.1MB. Free memory was 134.0MB in the beginning and 129.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 4 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 115 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 10:47:43,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2541160-bc17-4f5f-85ae-c23116cd745d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE