./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd --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 b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:25:28,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:25:28,633 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:25:28,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:25:28,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:25:28,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:25:28,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:25:28,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:25:28,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:25:28,682 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:25:28,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:25:28,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:25:28,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:25:28,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:25:28,683 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:25:28,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:25:28,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:25:28,684 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:25:28,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:25:28,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:25:28,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:25:28,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:25:28,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:25:28,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:25:28,687 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:25:28,687 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:25:28,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:25:28,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:25:28,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:25:28,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:25:28,687 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:25:28,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:25:28,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:25:28,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:25:28,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:25:28,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:25:28,688 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:25:28,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:25:28,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:25:28,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:25:28,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:25:28,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:25:28,688 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_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c [2024-11-13 13:25:28,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:25:28,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:25:28,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:25:28,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:25:28,985 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:25:28,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c Unable to find full path for "g++" [2024-11-13 13:25:31,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:25:31,557 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:25:31,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-11-13 13:25:31,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/data/613796bb5/17a49920cfc54ad895cb40f2d1ac7732/FLAGdb07d60f6 [2024-11-13 13:25:31,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/data/613796bb5/17a49920cfc54ad895cb40f2d1ac7732 [2024-11-13 13:25:31,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:25:31,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:25:31,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:25:31,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:25:31,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:25:31,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:25:31" (1/1) ... [2024-11-13 13:25:31,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5115a428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:31, skipping insertion in model container [2024-11-13 13:25:31,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:25:31" (1/1) ... [2024-11-13 13:25:31,837 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:25:32,113 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_d5d4be2f-ea37-491e-ba1e-766cb6d99988/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[3418,3431] [2024-11-13 13:25:32,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:25:32,135 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:25:32,172 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_d5d4be2f-ea37-491e-ba1e-766cb6d99988/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[3418,3431] [2024-11-13 13:25:32,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:25:32,193 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:25:32,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32 WrapperNode [2024-11-13 13:25:32,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:25:32,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:25:32,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:25:32,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:25:32,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,254 INFO L138 Inliner]: procedures = 22, calls = 20, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 210 [2024-11-13 13:25:32,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:25:32,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:25:32,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:25:32,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:25:32,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,270 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,299 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:25:32,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:25:32,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:25:32,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:25:32,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:25:32,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (1/1) ... [2024-11-13 13:25:32,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:25:32,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:25:32,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:25:32,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4be2f-ea37-491e-ba1e-766cb6d99988/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:25:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:25:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 13:25:32,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 13:25:32,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 13:25:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 13:25:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-13 13:25:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-13 13:25:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-13 13:25:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-13 13:25:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:25:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-13 13:25:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-13 13:25:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-13 13:25:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-13 13:25:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:25:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:25:32,406 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 13:25:32,564 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:25:32,566 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:25:33,036 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:25:33,036 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:25:33,470 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:25:33,471 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:25:33,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:25:33 BoogieIcfgContainer [2024-11-13 13:25:33,472 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:25:33,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:25:33,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:25:33,480 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:25:33,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:25:31" (1/3) ... [2024-11-13 13:25:33,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8ded6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:25:33, skipping insertion in model container [2024-11-13 13:25:33,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:25:32" (2/3) ... [2024-11-13 13:25:33,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8ded6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:25:33, skipping insertion in model container [2024-11-13 13:25:33,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:25:33" (3/3) ... [2024-11-13 13:25:33,485 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2024-11-13 13:25:33,507 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:25:33,509 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-barrier.wvr.c that has 7 procedures, 73 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 13:25:33,509 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:25:33,666 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-13 13:25:33,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 82 transitions, 230 flow [2024-11-13 13:25:33,818 INFO L124 PetriNetUnfolderBase]: 4/70 cut-off events. [2024-11-13 13:25:33,822 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 13:25:33,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 70 events. 4/70 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 68. Up to 3 conditions per place. [2024-11-13 13:25:33,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 82 transitions, 230 flow [2024-11-13 13:25:33,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 69 transitions, 186 flow [2024-11-13 13:25:33,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:25:33,872 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;@5f2f4d34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:25:33,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-13 13:25:33,939 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:25:33,939 INFO L124 PetriNetUnfolderBase]: 4/68 cut-off events. [2024-11-13 13:25:33,939 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 13:25:33,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:25:33,940 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:25:33,941 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-13 13:25:33,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:25:33,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1393916505, now seen corresponding path program 1 times [2024-11-13 13:25:33,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:25:33,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810554624] [2024-11-13 13:25:33,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:25:33,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:25:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:25:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:25:34,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:25:34,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810554624] [2024-11-13 13:25:34,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810554624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:25:34,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:25:34,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:25:34,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713600215] [2024-11-13 13:25:34,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:25:34,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:25:34,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:25:34,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:25:34,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:25:34,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 86 [2024-11-13 13:25:34,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 69 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:34,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:25:34,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 86 [2024-11-13 13:25:34,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:25:38,590 INFO L124 PetriNetUnfolderBase]: 14053/19607 cut-off events. [2024-11-13 13:25:38,591 INFO L125 PetriNetUnfolderBase]: For 1988/1988 co-relation queries the response was YES. [2024-11-13 13:25:38,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41191 conditions, 19607 events. 14053/19607 cut-off events. For 1988/1988 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 111288 event pairs, 8277 based on Foata normal form. 480/19128 useless extension candidates. Maximal degree in co-relation 40794. Up to 13270 conditions per place. [2024-11-13 13:25:38,775 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 67 selfloop transitions, 4 changer transitions 0/90 dead transitions. [2024-11-13 13:25:38,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 90 transitions, 391 flow [2024-11-13 13:25:38,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:25:38,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:25:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2024-11-13 13:25:38,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5697674418604651 [2024-11-13 13:25:38,797 INFO L175 Difference]: Start difference. First operand has 84 places, 69 transitions, 186 flow. Second operand 3 states and 147 transitions. [2024-11-13 13:25:38,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 90 transitions, 391 flow [2024-11-13 13:25:38,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 90 transitions, 345 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-13 13:25:38,862 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 168 flow [2024-11-13 13:25:38,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2024-11-13 13:25:38,871 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -9 predicate places. [2024-11-13 13:25:38,873 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 168 flow [2024-11-13 13:25:38,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:38,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:25:38,874 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:25:38,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:25:38,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-13 13:25:38,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:25:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1117834938, now seen corresponding path program 1 times [2024-11-13 13:25:38,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:25:38,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139004484] [2024-11-13 13:25:38,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:25:38,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:25:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:25:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:25:39,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:25:39,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139004484] [2024-11-13 13:25:39,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139004484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:25:39,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:25:39,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:25:39,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414504181] [2024-11-13 13:25:39,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:25:39,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:25:39,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:25:39,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:25:39,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:25:39,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 86 [2024-11-13 13:25:39,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:39,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:25:39,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 86 [2024-11-13 13:25:39,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:25:41,840 INFO L124 PetriNetUnfolderBase]: 13081/19085 cut-off events. [2024-11-13 13:25:41,841 INFO L125 PetriNetUnfolderBase]: For 1234/1234 co-relation queries the response was YES. [2024-11-13 13:25:41,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37939 conditions, 19085 events. 13081/19085 cut-off events. For 1234/1234 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 118255 event pairs, 7989 based on Foata normal form. 316/18251 useless extension candidates. Maximal degree in co-relation 16196. Up to 13117 conditions per place. [2024-11-13 13:25:41,993 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 68 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2024-11-13 13:25:41,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 91 transitions, 369 flow [2024-11-13 13:25:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:25:41,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:25:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2024-11-13 13:25:41,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5736434108527132 [2024-11-13 13:25:41,996 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 168 flow. Second operand 3 states and 148 transitions. [2024-11-13 13:25:41,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 91 transitions, 369 flow [2024-11-13 13:25:42,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 359 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:25:42,004 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 174 flow [2024-11-13 13:25:42,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2024-11-13 13:25:42,005 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2024-11-13 13:25:42,005 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 174 flow [2024-11-13 13:25:42,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:42,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:25:42,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:25:42,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:25:42,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-13 13:25:42,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:25:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1579026690, now seen corresponding path program 2 times [2024-11-13 13:25:42,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:25:42,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679480282] [2024-11-13 13:25:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:25:42,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:25:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:25:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:25:42,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:25:42,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679480282] [2024-11-13 13:25:42,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679480282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:25:42,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:25:42,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:25:42,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445635363] [2024-11-13 13:25:42,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:25:42,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:25:42,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:25:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:25:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:25:42,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 86 [2024-11-13 13:25:42,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:42,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:25:42,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 86 [2024-11-13 13:25:42,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:25:44,220 INFO L124 PetriNetUnfolderBase]: 11919/17063 cut-off events. [2024-11-13 13:25:44,221 INFO L125 PetriNetUnfolderBase]: For 1688/1716 co-relation queries the response was YES. [2024-11-13 13:25:44,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35062 conditions, 17063 events. 11919/17063 cut-off events. For 1688/1716 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 99863 event pairs, 7037 based on Foata normal form. 348/16362 useless extension candidates. Maximal degree in co-relation 12583. Up to 11081 conditions per place. [2024-11-13 13:25:44,318 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 69 selfloop transitions, 4 changer transitions 0/92 dead transitions. [2024-11-13 13:25:44,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 92 transitions, 379 flow [2024-11-13 13:25:44,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:25:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:25:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2024-11-13 13:25:44,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5775193798449613 [2024-11-13 13:25:44,321 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 174 flow. Second operand 3 states and 149 transitions. [2024-11-13 13:25:44,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 92 transitions, 379 flow [2024-11-13 13:25:44,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 92 transitions, 369 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:25:44,325 INFO L231 Difference]: Finished difference. Result has 77 places, 69 transitions, 180 flow [2024-11-13 13:25:44,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2024-11-13 13:25:44,327 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2024-11-13 13:25:44,327 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 69 transitions, 180 flow [2024-11-13 13:25:44,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:44,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:25:44,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:25:44,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:25:44,328 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-13 13:25:44,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:25:44,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1751838118, now seen corresponding path program 3 times [2024-11-13 13:25:44,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:25:44,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040935749] [2024-11-13 13:25:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:25:44,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:25:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:25:45,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:25:45,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:25:45,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040935749] [2024-11-13 13:25:45,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040935749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:25:45,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:25:45,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-13 13:25:45,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270838148] [2024-11-13 13:25:45,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:25:45,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 13:25:45,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:25:45,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 13:25:45,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:25:45,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 86 [2024-11-13 13:25:45,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 180 flow. Second operand has 20 states, 20 states have (on average 18.75) internal successors, (375), 20 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:45,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:25:45,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 86 [2024-11-13 13:25:45,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:25:57,508 INFO L124 PetriNetUnfolderBase]: 57138/76185 cut-off events. [2024-11-13 13:25:57,508 INFO L125 PetriNetUnfolderBase]: For 9138/9138 co-relation queries the response was YES. [2024-11-13 13:25:57,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159492 conditions, 76185 events. 57138/76185 cut-off events. For 9138/9138 co-relation queries the response was YES. Maximal size of possible extension queue 1351. Compared 416243 event pairs, 5441 based on Foata normal form. 1/73356 useless extension candidates. Maximal degree in co-relation 63161. Up to 36443 conditions per place. [2024-11-13 13:25:58,071 INFO L140 encePairwiseOnDemand]: 64/86 looper letters, 521 selfloop transitions, 200 changer transitions 20/751 dead transitions. [2024-11-13 13:25:58,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 751 transitions, 3271 flow [2024-11-13 13:25:58,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-13 13:25:58,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2024-11-13 13:25:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 1654 transitions. [2024-11-13 13:25:58,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33741330069359443 [2024-11-13 13:25:58,091 INFO L175 Difference]: Start difference. First operand has 77 places, 69 transitions, 180 flow. Second operand 57 states and 1654 transitions. [2024-11-13 13:25:58,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 751 transitions, 3271 flow [2024-11-13 13:25:58,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 751 transitions, 3235 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:25:58,161 INFO L231 Difference]: Finished difference. Result has 158 places, 292 transitions, 1380 flow [2024-11-13 13:25:58,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=1380, PETRI_PLACES=158, PETRI_TRANSITIONS=292} [2024-11-13 13:25:58,164 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 74 predicate places. [2024-11-13 13:25:58,164 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 292 transitions, 1380 flow [2024-11-13 13:25:58,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 18.75) internal successors, (375), 20 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:58,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:25:58,166 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:25:58,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:25:58,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-13 13:25:58,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:25:58,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1986151880, now seen corresponding path program 4 times [2024-11-13 13:25:58,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:25:58,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131675457] [2024-11-13 13:25:58,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:25:58,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:25:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:25:58,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:25:58,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:25:58,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131675457] [2024-11-13 13:25:58,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131675457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:25:58,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:25:58,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:25:58,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523229544] [2024-11-13 13:25:58,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:25:58,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:25:58,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:25:58,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:25:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:25:58,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 86 [2024-11-13 13:25:58,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 292 transitions, 1380 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:58,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:25:58,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 86 [2024-11-13 13:25:58,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:26:03,752 INFO L124 PetriNetUnfolderBase]: 27704/40051 cut-off events. [2024-11-13 13:26:03,752 INFO L125 PetriNetUnfolderBase]: For 86602/87398 co-relation queries the response was YES. [2024-11-13 13:26:03,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113412 conditions, 40051 events. 27704/40051 cut-off events. For 86602/87398 co-relation queries the response was YES. Maximal size of possible extension queue 1019. Compared 256052 event pairs, 13088 based on Foata normal form. 1406/38659 useless extension candidates. Maximal degree in co-relation 113367. Up to 26051 conditions per place. [2024-11-13 13:26:04,144 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 140 selfloop transitions, 4 changer transitions 0/300 dead transitions. [2024-11-13 13:26:04,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 300 transitions, 1723 flow [2024-11-13 13:26:04,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:26:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:26:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2024-11-13 13:26:04,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5658914728682171 [2024-11-13 13:26:04,146 INFO L175 Difference]: Start difference. First operand has 158 places, 292 transitions, 1380 flow. Second operand 3 states and 146 transitions. [2024-11-13 13:26:04,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 300 transitions, 1723 flow [2024-11-13 13:26:04,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 300 transitions, 1709 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-11-13 13:26:04,661 INFO L231 Difference]: Finished difference. Result has 159 places, 274 transitions, 1318 flow [2024-11-13 13:26:04,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1318, PETRI_PLACES=159, PETRI_TRANSITIONS=274} [2024-11-13 13:26:04,667 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 75 predicate places. [2024-11-13 13:26:04,667 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 274 transitions, 1318 flow [2024-11-13 13:26:04,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:26:04,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:26:04,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:04,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:26:04,668 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-13 13:26:04,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:04,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1718060114, now seen corresponding path program 5 times [2024-11-13 13:26:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:26:04,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842668778] [2024-11-13 13:26:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:04,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:26:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:26:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:26:05,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:26:05,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842668778] [2024-11-13 13:26:05,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842668778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:26:05,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:26:05,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 13:26:05,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622682455] [2024-11-13 13:26:05,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:26:05,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 13:26:05,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:26:05,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 13:26:05,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:26:06,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 86 [2024-11-13 13:26:06,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 274 transitions, 1318 flow. Second operand has 22 states, 22 states have (on average 18.5) internal successors, (407), 22 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:26:06,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:26:06,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 86 [2024-11-13 13:26:06,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:26:20,765 INFO L124 PetriNetUnfolderBase]: 62334/83742 cut-off events. [2024-11-13 13:26:20,765 INFO L125 PetriNetUnfolderBase]: For 207310/207310 co-relation queries the response was YES. [2024-11-13 13:26:21,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252906 conditions, 83742 events. 62334/83742 cut-off events. For 207310/207310 co-relation queries the response was YES. Maximal size of possible extension queue 1262. Compared 463185 event pairs, 7556 based on Foata normal form. 1/80421 useless extension candidates. Maximal degree in co-relation 164424. Up to 45689 conditions per place. [2024-11-13 13:26:21,412 INFO L140 encePairwiseOnDemand]: 62/86 looper letters, 866 selfloop transitions, 266 changer transitions 32/1174 dead transitions. [2024-11-13 13:26:21,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1174 transitions, 6780 flow [2024-11-13 13:26:21,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-13 13:26:21,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2024-11-13 13:26:21,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 2056 transitions. [2024-11-13 13:26:21,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3415282392026578 [2024-11-13 13:26:21,423 INFO L175 Difference]: Start difference. First operand has 159 places, 274 transitions, 1318 flow. Second operand 70 states and 2056 transitions. [2024-11-13 13:26:21,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 1174 transitions, 6780 flow [2024-11-13 13:26:22,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 1174 transitions, 6740 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:26:22,774 INFO L231 Difference]: Finished difference. Result has 251 places, 525 transitions, 3470 flow [2024-11-13 13:26:22,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=1310, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=70, PETRI_FLOW=3470, PETRI_PLACES=251, PETRI_TRANSITIONS=525} [2024-11-13 13:26:22,775 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 167 predicate places. [2024-11-13 13:26:22,776 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 525 transitions, 3470 flow [2024-11-13 13:26:22,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 18.5) internal successors, (407), 22 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:26:22,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:26:22,776 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:22,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:26:22,777 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-13 13:26:22,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:22,777 INFO L85 PathProgramCache]: Analyzing trace with hash 206728982, now seen corresponding path program 6 times [2024-11-13 13:26:22,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:26:22,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705510080] [2024-11-13 13:26:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:22,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:26:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:26:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:26:24,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:26:24,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705510080] [2024-11-13 13:26:24,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705510080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:26:24,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:26:24,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-13 13:26:24,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42222368] [2024-11-13 13:26:24,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:26:24,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 13:26:24,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:26:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 13:26:24,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:26:24,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 86 [2024-11-13 13:26:24,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 525 transitions, 3470 flow. Second operand has 21 states, 21 states have (on average 18.61904761904762) internal successors, (391), 21 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:26:24,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:26:24,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 86 [2024-11-13 13:26:24,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand