./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i --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_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/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_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/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_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/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 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:01:28,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:01:28,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:01:28,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:01:28,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:01:28,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:01:28,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:01:28,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:01:28,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:01:28,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:01:28,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:01:28,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:01:28,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:01:28,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:01:28,806 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:01:28,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:01:28,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:01:28,807 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:01:28,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:01:28,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:01:28,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:01:28,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:01:28,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:01:28,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:01:28,808 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:01:28,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:01:28,808 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:01:28,808 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:01:28,808 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:01:28,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:28,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:28,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:28,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:28,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:01:28,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:28,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:28,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:28,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:28,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:01:28,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:01:28,811 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:01:28,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:01:28,811 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:01:28,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:01:28,811 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:01:28,811 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:01:28,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:01:28,812 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:01:28,812 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_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/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 -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 [2024-11-24 01:01:29,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:01:29,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:01:29,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:01:29,129 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:01:29,129 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:01:29,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2024-11-24 01:01:32,134 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/data/86629a17a/6d076cecb9484906837b5a608660cc90/FLAG88297e4ab [2024-11-24 01:01:32,537 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:01:32,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2024-11-24 01:01:32,550 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/data/86629a17a/6d076cecb9484906837b5a608660cc90/FLAG88297e4ab [2024-11-24 01:01:32,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/data/86629a17a/6d076cecb9484906837b5a608660cc90 [2024-11-24 01:01:32,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:01:32,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:01:32,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:32,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:01:32,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:01:32,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:32" (1/1) ... [2024-11-24 01:01:32,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24520930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:32, skipping insertion in model container [2024-11-24 01:01:32,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:32" (1/1) ... [2024-11-24 01:01:32,621 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:01:32,766 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_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2024-11-24 01:01:32,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:32,911 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:01:32,927 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_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2024-11-24 01:01:32,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:33,029 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:01:33,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33 WrapperNode [2024-11-24 01:01:33,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:33,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:33,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:01:33,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:01:33,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,079 INFO L138 Inliner]: procedures = 162, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2024-11-24 01:01:33,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:33,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:01:33,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:01:33,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:01:33,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,103 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-24 01:01:33,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,108 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:01:33,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:01:33,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:01:33,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:01:33,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (1/1) ... [2024-11-24 01:01:33,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:33,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:33,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:01:33,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:01:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 01:01:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:01:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 01:01:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 01:01:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:01:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:01:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:01:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 01:01:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:01:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:01:33,185 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 01:01:33,299 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:01:33,301 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:01:33,435 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:01:33,435 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:01:33,574 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:01:33,574 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:01:33,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:33 BoogieIcfgContainer [2024-11-24 01:01:33,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:01:33,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:01:33,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:01:33,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:01:33,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:01:32" (1/3) ... [2024-11-24 01:01:33,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b642c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:33, skipping insertion in model container [2024-11-24 01:01:33,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:33" (2/3) ... [2024-11-24 01:01:33,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b642c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:33, skipping insertion in model container [2024-11-24 01:01:33,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:33" (3/3) ... [2024-11-24 01:01:33,588 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2024-11-24 01:01:33,601 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:01:33,603 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 01:01:33,603 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:01:33,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 01:01:33,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 52 flow [2024-11-24 01:01:33,714 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2024-11-24 01:01:33,716 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:01:33,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 23 events. 1/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-11-24 01:01:33,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 24 transitions, 52 flow [2024-11-24 01:01:33,721 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-11-24 01:01:33,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:01:33,740 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;@2105a4cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:01:33,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:01:33,748 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:01:33,748 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-24 01:01:33,748 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:01:33,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:01:33,749 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:33,750 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-24 01:01:33,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:33,755 INFO L85 PathProgramCache]: Analyzing trace with hash -830545923, now seen corresponding path program 1 times [2024-11-24 01:01:33,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:33,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449119313] [2024-11-24 01:01:33,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:33,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:34,202 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 01:01:34,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:34,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449119313] [2024-11-24 01:01:34,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449119313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:34,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:34,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:01:34,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936002429] [2024-11-24 01:01:34,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:34,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:01:34,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:34,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:01:34,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:01:34,263 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 24 [2024-11-24 01:01:34,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 01:01:34,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:01:34,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 24 [2024-11-24 01:01:34,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:01:34,410 INFO L124 PetriNetUnfolderBase]: 32/101 cut-off events. [2024-11-24 01:01:34,411 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:01:34,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 101 events. 32/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 322 event pairs, 14 based on Foata normal form. 7/107 useless extension candidates. Maximal degree in co-relation 180. Up to 51 conditions per place. [2024-11-24 01:01:34,413 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 16 selfloop transitions, 2 changer transitions 7/31 dead transitions. [2024-11-24 01:01:34,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 31 transitions, 115 flow [2024-11-24 01:01:34,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:01:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-24 01:01:34,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 62 transitions. [2024-11-24 01:01:34,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-11-24 01:01:34,427 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 5 states and 62 transitions. [2024-11-24 01:01:34,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 31 transitions, 115 flow [2024-11-24 01:01:34,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:01:34,435 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 54 flow [2024-11-24 01:01:34,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=54, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2024-11-24 01:01:34,444 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2024-11-24 01:01:34,444 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 54 flow [2024-11-24 01:01:34,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 01:01:34,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:01:34,445 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:34,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:01:34,446 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-24 01:01:34,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:34,448 INFO L85 PathProgramCache]: Analyzing trace with hash 193340330, now seen corresponding path program 1 times [2024-11-24 01:01:34,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:34,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47102394] [2024-11-24 01:01:34,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:34,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:34,823 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 01:01:34,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47102394] [2024-11-24 01:01:34,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47102394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:34,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:34,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:01:34,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936024567] [2024-11-24 01:01:34,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:34,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:01:34,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:34,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:01:34,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:01:34,830 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 24 [2024-11-24 01:01:34,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 01:01:34,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:01:34,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 24 [2024-11-24 01:01:34,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:01:34,912 INFO L124 PetriNetUnfolderBase]: 13/62 cut-off events. [2024-11-24 01:01:34,915 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:01:34,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 62 events. 13/62 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 136 event pairs, 5 based on Foata normal form. 6/68 useless extension candidates. Maximal degree in co-relation 117. Up to 27 conditions per place. [2024-11-24 01:01:34,916 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 11 selfloop transitions, 5 changer transitions 0/23 dead transitions. [2024-11-24 01:01:34,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 23 transitions, 94 flow [2024-11-24 01:01:34,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:01:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 01:01:34,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2024-11-24 01:01:34,919 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-11-24 01:01:34,919 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 54 flow. Second operand 4 states and 54 transitions. [2024-11-24 01:01:34,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 23 transitions, 94 flow [2024-11-24 01:01:34,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 86 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-24 01:01:34,921 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 56 flow [2024-11-24 01:01:34,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2024-11-24 01:01:34,924 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2024-11-24 01:01:34,924 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 56 flow [2024-11-24 01:01:34,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 01:01:34,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:01:34,924 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:34,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:01:34,925 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-24 01:01:34,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:34,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1653587414, now seen corresponding path program 2 times [2024-11-24 01:01:34,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:34,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675333570] [2024-11-24 01:01:34,926 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:01:34,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:34,953 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:01:34,957 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:01:35,215 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 01:01:35,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:35,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675333570] [2024-11-24 01:01:35,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675333570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:35,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:35,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:01:35,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545657559] [2024-11-24 01:01:35,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:35,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:01:35,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:35,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:01:35,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:01:35,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 24 [2024-11-24 01:01:35,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 01:01:35,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:01:35,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 24 [2024-11-24 01:01:35,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:01:35,289 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2024-11-24 01:01:35,290 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-24 01:01:35,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 50 events. 10/50 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 5 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 98. Up to 19 conditions per place. [2024-11-24 01:01:35,291 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 11 selfloop transitions, 4 changer transitions 1/23 dead transitions. [2024-11-24 01:01:35,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 96 flow [2024-11-24 01:01:35,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:01:35,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 01:01:35,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 53 transitions. [2024-11-24 01:01:35,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5520833333333334 [2024-11-24 01:01:35,295 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 56 flow. Second operand 4 states and 53 transitions. [2024-11-24 01:01:35,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 96 flow [2024-11-24 01:01:35,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:01:35,297 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 59 flow [2024-11-24 01:01:35,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2024-11-24 01:01:35,298 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2024-11-24 01:01:35,299 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 59 flow [2024-11-24 01:01:35,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 01:01:35,299 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:01:35,299 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:35,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:01:35,299 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-24 01:01:35,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:35,301 INFO L85 PathProgramCache]: Analyzing trace with hash -861151751, now seen corresponding path program 1 times [2024-11-24 01:01:35,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:35,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430975218] [2024-11-24 01:01:35,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:35,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:01:35,332 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:01:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:01:35,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:01:35,373 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:01:35,374 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-24 01:01:35,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-24 01:01:35,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:01:35,377 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-24 01:01:35,415 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-24 01:01:35,416 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:01:35,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:01:35 BasicIcfg [2024-11-24 01:01:35,421 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:01:35,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:01:35,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:01:35,422 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:01:35,422 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:33" (3/4) ... [2024-11-24 01:01:35,423 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 01:01:35,473 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 3. [2024-11-24 01:01:35,519 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:01:35,519 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:01:35,520 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:01:35,522 INFO L158 Benchmark]: Toolchain (without parser) took 2950.03ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 84.3MB in the end (delta: 19.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-24 01:01:35,522 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:01:35,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.22ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 84.4MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:01:35,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.57ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 82.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:01:35,526 INFO L158 Benchmark]: Boogie Preprocessor took 34.54ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 81.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:01:35,526 INFO L158 Benchmark]: RCFGBuilder took 459.80ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 58.6MB in the end (delta: 22.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:01:35,527 INFO L158 Benchmark]: TraceAbstraction took 1843.46ms. Allocated memory is still 142.6MB. Free memory was 58.3MB in the beginning and 90.1MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:01:35,527 INFO L158 Benchmark]: Witness Printer took 98.83ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 84.3MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:01:35,529 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.22ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 84.4MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.57ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 82.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.54ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 81.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 459.80ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 58.6MB in the end (delta: 22.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1843.46ms. Allocated memory is still 142.6MB. Free memory was 58.3MB in the beginning and 90.1MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.83ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 84.3MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, g=0, id=-1] [L687] 1 g = 17 VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, arg={0:0}, g=17] [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, \old(cond)=0, arg={0:0}, cond=0, g=17] [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, \old(cond)=0, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 2 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=3, InterpolantAutomatonStates: 13, 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, 0.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-24 01:01:35,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c824d2-3722-4572-8a7f-856dd0ef8ce5/bin/uautomizer-verify-LYvppIcaGC/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE