./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl --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 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:26:29,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:26:29,174 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:26:29,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:26:29,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:26:29,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:26:29,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:26:29,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:26:29,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:26:29,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:26:29,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:26:29,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:26:29,214 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:26:29,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:26:29,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:26:29,216 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:26:29,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:26:29,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:26:29,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:26:29,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:26:29,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:26:29,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:26:29,220 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:26:29,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:26:29,221 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:26:29,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:26:29,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:26:29,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:26:29,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:29,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:26:29,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:26:29,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:26:29,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:26:29,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:26:29,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:26:29,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:26:29,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:26:29,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:26:29,227 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:26:29,228 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b [2023-11-12 02:26:29,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:26:29,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:26:29,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:26:29,527 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:26:29,528 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:26:29,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 02:26:32,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:26:33,012 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:26:33,012 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 02:26:33,031 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/data/029c398fc/692ff41d7845441b83178e14f61f4ebb/FLAGbae729e48 [2023-11-12 02:26:33,046 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/data/029c398fc/692ff41d7845441b83178e14f61f4ebb [2023-11-12 02:26:33,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:26:33,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:26:33,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:33,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:26:33,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:26:33,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4cda33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33, skipping insertion in model container [2023-11-12 02:26:33,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,106 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:26:33,312 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-12 02:26:33,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:33,514 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:26:33,533 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-12 02:26:33,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:33,656 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:26:33,656 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:26:33,679 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:26:33,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33 WrapperNode [2023-11-12 02:26:33,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:33,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:33,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:26:33,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:26:33,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,724 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-11-12 02:26:33,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:33,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:26:33,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:26:33,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:26:33,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:26:33,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:26:33,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:26:33,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:26:33,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (1/1) ... [2023-11-12 02:26:33,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:33,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:33,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:33,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:26:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:26:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:26:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:26:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:26:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:26:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:26:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:26:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:26:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:26:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:26:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:26:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:26:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:26:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:26:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:26:33,845 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:26:34,042 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:26:34,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:26:34,219 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:26:34,227 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:26:34,227 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:26:34,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:34 BoogieIcfgContainer [2023-11-12 02:26:34,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:26:34,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:26:34,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:26:34,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:26:34,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:26:33" (1/3) ... [2023-11-12 02:26:34,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df52770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:34, skipping insertion in model container [2023-11-12 02:26:34,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:33" (2/3) ... [2023-11-12 02:26:34,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df52770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:34, skipping insertion in model container [2023-11-12 02:26:34,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:34" (3/3) ... [2023-11-12 02:26:34,250 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 02:26:34,265 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:26:34,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:26:34,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:26:34,276 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:26:34,344 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:26:34,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 184 flow [2023-11-12 02:26:34,429 INFO L124 PetriNetUnfolderBase]: 2/83 cut-off events. [2023-11-12 02:26:34,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:34,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-11-12 02:26:34,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 184 flow [2023-11-12 02:26:34,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2023-11-12 02:26:34,443 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:26:34,453 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 68 transitions, 145 flow [2023-11-12 02:26:34,456 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 68 transitions, 145 flow [2023-11-12 02:26:34,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 68 transitions, 145 flow [2023-11-12 02:26:34,480 INFO L124 PetriNetUnfolderBase]: 1/68 cut-off events. [2023-11-12 02:26:34,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:34,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 34 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-11-12 02:26:34,483 INFO L119 LiptonReduction]: Number of co-enabled transitions 1008 [2023-11-12 02:26:36,919 INFO L134 LiptonReduction]: Checked pairs total: 1743 [2023-11-12 02:26:36,920 INFO L136 LiptonReduction]: Total number of compositions: 57 [2023-11-12 02:26:36,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:26:36,945 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29cec054, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:26:36,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 02:26:36,951 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:26:36,952 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-11-12 02:26:36,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:36,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:36,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:36,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:36,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:36,959 INFO L85 PathProgramCache]: Analyzing trace with hash 247524755, now seen corresponding path program 1 times [2023-11-12 02:26:36,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:36,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691622295] [2023-11-12 02:26:36,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:36,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:37,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:37,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:37,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691622295] [2023-11-12 02:26:37,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691622295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:37,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:37,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:26:37,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855212785] [2023-11-12 02:26:37,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:37,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:37,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:37,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:37,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:37,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 143 [2023-11-12 02:26:37,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:37,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:37,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 143 [2023-11-12 02:26:37,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:37,752 INFO L124 PetriNetUnfolderBase]: 354/582 cut-off events. [2023-11-12 02:26:37,752 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-12 02:26:37,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 582 events. 354/582 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2400 event pairs, 129 based on Foata normal form. 27/609 useless extension candidates. Maximal degree in co-relation 1192. Up to 400 conditions per place. [2023-11-12 02:26:37,761 INFO L140 encePairwiseOnDemand]: 136/143 looper letters, 23 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2023-11-12 02:26:37,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 127 flow [2023-11-12 02:26:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:37,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-11-12 02:26:37,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5827505827505828 [2023-11-12 02:26:37,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-11-12 02:26:37,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-11-12 02:26:37,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:37,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-11-12 02:26:37,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:37,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:37,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:37,794 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 43 flow. Second operand 3 states and 250 transitions. [2023-11-12 02:26:37,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 127 flow [2023-11-12 02:26:37,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:26:37,799 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 67 flow [2023-11-12 02:26:37,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2023-11-12 02:26:37,805 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2023-11-12 02:26:37,805 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 67 flow [2023-11-12 02:26:37,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:37,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:37,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:37,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:26:37,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:37,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:37,807 INFO L85 PathProgramCache]: Analyzing trace with hash -916667769, now seen corresponding path program 1 times [2023-11-12 02:26:37,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:37,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729154431] [2023-11-12 02:26:37,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:37,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:38,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:38,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729154431] [2023-11-12 02:26:38,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729154431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:38,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:38,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:38,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111852468] [2023-11-12 02:26:38,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:38,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:38,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:38,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:38,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:38,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 143 [2023-11-12 02:26:38,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:38,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 143 [2023-11-12 02:26:38,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:38,267 INFO L124 PetriNetUnfolderBase]: 333/552 cut-off events. [2023-11-12 02:26:38,267 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2023-11-12 02:26:38,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 552 events. 333/552 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2092 event pairs, 81 based on Foata normal form. 9/561 useless extension candidates. Maximal degree in co-relation 1378. Up to 271 conditions per place. [2023-11-12 02:26:38,273 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 24 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2023-11-12 02:26:38,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 30 transitions, 154 flow [2023-11-12 02:26:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:26:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:26:38,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2023-11-12 02:26:38,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5629370629370629 [2023-11-12 02:26:38,277 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 322 transitions. [2023-11-12 02:26:38,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 322 transitions. [2023-11-12 02:26:38,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:38,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 322 transitions. [2023-11-12 02:26:38,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,283 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,283 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 67 flow. Second operand 4 states and 322 transitions. [2023-11-12 02:26:38,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 30 transitions, 154 flow [2023-11-12 02:26:38,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 30 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:26:38,287 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 88 flow [2023-11-12 02:26:38,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-11-12 02:26:38,289 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-11-12 02:26:38,289 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 88 flow [2023-11-12 02:26:38,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:38,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:38,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:26:38,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:38,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:38,291 INFO L85 PathProgramCache]: Analyzing trace with hash -916668451, now seen corresponding path program 1 times [2023-11-12 02:26:38,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:38,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018025420] [2023-11-12 02:26:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:38,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:38,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:38,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018025420] [2023-11-12 02:26:38,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018025420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:38,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:38,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:38,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391050428] [2023-11-12 02:26:38,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:38,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:38,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:38,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:38,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:38,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 143 [2023-11-12 02:26:38,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:38,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 143 [2023-11-12 02:26:38,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:38,621 INFO L124 PetriNetUnfolderBase]: 368/606 cut-off events. [2023-11-12 02:26:38,621 INFO L125 PetriNetUnfolderBase]: For 438/438 co-relation queries the response was YES. [2023-11-12 02:26:38,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 606 events. 368/606 cut-off events. For 438/438 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2475 event pairs, 31 based on Foata normal form. 12/618 useless extension candidates. Maximal degree in co-relation 1673. Up to 272 conditions per place. [2023-11-12 02:26:38,628 INFO L140 encePairwiseOnDemand]: 136/143 looper letters, 36 selfloop transitions, 17 changer transitions 0/53 dead transitions. [2023-11-12 02:26:38,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 53 transitions, 321 flow [2023-11-12 02:26:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:26:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:26:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 404 transitions. [2023-11-12 02:26:38,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5650349650349651 [2023-11-12 02:26:38,631 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 404 transitions. [2023-11-12 02:26:38,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 404 transitions. [2023-11-12 02:26:38,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:38,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 404 transitions. [2023-11-12 02:26:38,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.8) internal successors, (404), 5 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,638 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,638 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 88 flow. Second operand 5 states and 404 transitions. [2023-11-12 02:26:38,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 53 transitions, 321 flow [2023-11-12 02:26:38,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 53 transitions, 303 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:26:38,649 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 223 flow [2023-11-12 02:26:38,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2023-11-12 02:26:38,651 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2023-11-12 02:26:38,655 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 223 flow [2023-11-12 02:26:38,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:38,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:38,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:26:38,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:38,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:38,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1648068008, now seen corresponding path program 1 times [2023-11-12 02:26:38,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:38,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895355359] [2023-11-12 02:26:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:38,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:38,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:38,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895355359] [2023-11-12 02:26:38,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895355359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:38,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:38,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:38,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994351715] [2023-11-12 02:26:38,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:38,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:38,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:38,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:38,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:38,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 143 [2023-11-12 02:26:38,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:38,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 143 [2023-11-12 02:26:38,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:38,972 INFO L124 PetriNetUnfolderBase]: 359/591 cut-off events. [2023-11-12 02:26:38,972 INFO L125 PetriNetUnfolderBase]: For 1049/1049 co-relation queries the response was YES. [2023-11-12 02:26:38,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2127 conditions, 591 events. 359/591 cut-off events. For 1049/1049 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2324 event pairs, 79 based on Foata normal form. 2/593 useless extension candidates. Maximal degree in co-relation 2109. Up to 380 conditions per place. [2023-11-12 02:26:38,979 INFO L140 encePairwiseOnDemand]: 138/143 looper letters, 31 selfloop transitions, 15 changer transitions 0/46 dead transitions. [2023-11-12 02:26:38,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 371 flow [2023-11-12 02:26:38,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:26:38,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:26:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 325 transitions. [2023-11-12 02:26:38,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2023-11-12 02:26:38,982 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 325 transitions. [2023-11-12 02:26:38,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 325 transitions. [2023-11-12 02:26:38,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:38,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 325 transitions. [2023-11-12 02:26:38,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,987 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:38,987 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 223 flow. Second operand 4 states and 325 transitions. [2023-11-12 02:26:38,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 371 flow [2023-11-12 02:26:38,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 371 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:26:38,996 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 283 flow [2023-11-12 02:26:38,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=283, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-11-12 02:26:38,999 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2023-11-12 02:26:38,999 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 283 flow [2023-11-12 02:26:38,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:39,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:39,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:26:39,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:39,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:39,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1647010629, now seen corresponding path program 1 times [2023-11-12 02:26:39,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:39,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674570902] [2023-11-12 02:26:39,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:39,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:39,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:39,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674570902] [2023-11-12 02:26:39,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674570902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:39,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:39,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:26:39,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334746474] [2023-11-12 02:26:39,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:39,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:26:39,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:39,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:26:39,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:26:39,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 143 [2023-11-12 02:26:39,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 283 flow. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:39,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 143 [2023-11-12 02:26:39,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:39,318 INFO L124 PetriNetUnfolderBase]: 419/704 cut-off events. [2023-11-12 02:26:39,318 INFO L125 PetriNetUnfolderBase]: For 1866/1866 co-relation queries the response was YES. [2023-11-12 02:26:39,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 704 events. 419/704 cut-off events. For 1866/1866 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3068 event pairs, 74 based on Foata normal form. 27/731 useless extension candidates. Maximal degree in co-relation 2572. Up to 322 conditions per place. [2023-11-12 02:26:39,325 INFO L140 encePairwiseOnDemand]: 136/143 looper letters, 27 selfloop transitions, 9 changer transitions 18/54 dead transitions. [2023-11-12 02:26:39,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 496 flow [2023-11-12 02:26:39,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:26:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:26:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 395 transitions. [2023-11-12 02:26:39,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5524475524475524 [2023-11-12 02:26:39,327 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 395 transitions. [2023-11-12 02:26:39,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 395 transitions. [2023-11-12 02:26:39,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:39,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 395 transitions. [2023-11-12 02:26:39,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,333 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,333 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 283 flow. Second operand 5 states and 395 transitions. [2023-11-12 02:26:39,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 496 flow [2023-11-12 02:26:39,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 460 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-12 02:26:39,341 INFO L231 Difference]: Finished difference. Result has 44 places, 23 transitions, 185 flow [2023-11-12 02:26:39,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=44, PETRI_TRANSITIONS=23} [2023-11-12 02:26:39,342 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 18 predicate places. [2023-11-12 02:26:39,342 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 23 transitions, 185 flow [2023-11-12 02:26:39,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:39,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:39,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:26:39,343 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:39,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:39,344 INFO L85 PathProgramCache]: Analyzing trace with hash -535347006, now seen corresponding path program 1 times [2023-11-12 02:26:39,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:39,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929341992] [2023-11-12 02:26:39,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:39,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:39,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:39,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:39,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929341992] [2023-11-12 02:26:39,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929341992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:39,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:39,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:39,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816702686] [2023-11-12 02:26:39,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:39,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:39,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:39,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:39,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:39,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 143 [2023-11-12 02:26:39,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 23 transitions, 185 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:39,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 143 [2023-11-12 02:26:39,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:39,557 INFO L124 PetriNetUnfolderBase]: 164/315 cut-off events. [2023-11-12 02:26:39,557 INFO L125 PetriNetUnfolderBase]: For 1710/1751 co-relation queries the response was YES. [2023-11-12 02:26:39,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 315 events. 164/315 cut-off events. For 1710/1751 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1345 event pairs, 40 based on Foata normal form. 24/325 useless extension candidates. Maximal degree in co-relation 1161. Up to 186 conditions per place. [2023-11-12 02:26:39,561 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 28 selfloop transitions, 5 changer transitions 20/57 dead transitions. [2023-11-12 02:26:39,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 536 flow [2023-11-12 02:26:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:26:39,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:26:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 409 transitions. [2023-11-12 02:26:39,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5720279720279721 [2023-11-12 02:26:39,564 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 409 transitions. [2023-11-12 02:26:39,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 409 transitions. [2023-11-12 02:26:39,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:39,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 409 transitions. [2023-11-12 02:26:39,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,569 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,569 INFO L175 Difference]: Start difference. First operand has 44 places, 23 transitions, 185 flow. Second operand 5 states and 409 transitions. [2023-11-12 02:26:39,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 536 flow [2023-11-12 02:26:39,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 57 transitions, 399 flow, removed 10 selfloop flow, removed 10 redundant places. [2023-11-12 02:26:39,574 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 164 flow [2023-11-12 02:26:39,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2023-11-12 02:26:39,575 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 15 predicate places. [2023-11-12 02:26:39,575 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 164 flow [2023-11-12 02:26:39,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:39,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:39,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:26:39,576 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:39,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:39,576 INFO L85 PathProgramCache]: Analyzing trace with hash -234754648, now seen corresponding path program 1 times [2023-11-12 02:26:39,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:39,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810072696] [2023-11-12 02:26:39,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:39,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:39,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:39,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810072696] [2023-11-12 02:26:39,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810072696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:39,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:39,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:26:39,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593810819] [2023-11-12 02:26:39,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:39,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:26:39,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:39,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:26:39,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:26:39,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 143 [2023-11-12 02:26:39,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:39,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 143 [2023-11-12 02:26:39,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:39,836 INFO L124 PetriNetUnfolderBase]: 103/221 cut-off events. [2023-11-12 02:26:39,836 INFO L125 PetriNetUnfolderBase]: For 499/560 co-relation queries the response was YES. [2023-11-12 02:26:39,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 221 events. 103/221 cut-off events. For 499/560 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 907 event pairs, 12 based on Foata normal form. 36/249 useless extension candidates. Maximal degree in co-relation 879. Up to 122 conditions per place. [2023-11-12 02:26:39,839 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 38 selfloop transitions, 11 changer transitions 14/67 dead transitions. [2023-11-12 02:26:39,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 67 transitions, 531 flow [2023-11-12 02:26:39,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:26:39,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:26:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 567 transitions. [2023-11-12 02:26:39,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5664335664335665 [2023-11-12 02:26:39,842 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 567 transitions. [2023-11-12 02:26:39,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 567 transitions. [2023-11-12 02:26:39,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:39,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 567 transitions. [2023-11-12 02:26:39,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.0) internal successors, (567), 7 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 143.0) internal successors, (1144), 8 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,847 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 143.0) internal successors, (1144), 8 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,847 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 164 flow. Second operand 7 states and 567 transitions. [2023-11-12 02:26:39,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 67 transitions, 531 flow [2023-11-12 02:26:39,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 67 transitions, 525 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-12 02:26:39,851 INFO L231 Difference]: Finished difference. Result has 47 places, 33 transitions, 240 flow [2023-11-12 02:26:39,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=240, PETRI_PLACES=47, PETRI_TRANSITIONS=33} [2023-11-12 02:26:39,852 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 21 predicate places. [2023-11-12 02:26:39,853 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 33 transitions, 240 flow [2023-11-12 02:26:39,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:39,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:39,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:26:39,854 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:39,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1617474478, now seen corresponding path program 1 times [2023-11-12 02:26:39,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:39,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089686622] [2023-11-12 02:26:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:39,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:39,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:39,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089686622] [2023-11-12 02:26:39,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089686622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:39,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:39,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:26:39,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430276170] [2023-11-12 02:26:39,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:39,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:39,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:39,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:39,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:39,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 143 [2023-11-12 02:26:39,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 33 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:39,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:39,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 143 [2023-11-12 02:26:39,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:40,111 INFO L124 PetriNetUnfolderBase]: 168/342 cut-off events. [2023-11-12 02:26:40,111 INFO L125 PetriNetUnfolderBase]: For 914/914 co-relation queries the response was YES. [2023-11-12 02:26:40,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 342 events. 168/342 cut-off events. For 914/914 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1435 event pairs, 17 based on Foata normal form. 5/347 useless extension candidates. Maximal degree in co-relation 1530. Up to 183 conditions per place. [2023-11-12 02:26:40,115 INFO L140 encePairwiseOnDemand]: 136/143 looper letters, 33 selfloop transitions, 11 changer transitions 15/59 dead transitions. [2023-11-12 02:26:40,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 59 transitions, 520 flow [2023-11-12 02:26:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:26:40,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:26:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 394 transitions. [2023-11-12 02:26:40,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.551048951048951 [2023-11-12 02:26:40,117 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 394 transitions. [2023-11-12 02:26:40,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 394 transitions. [2023-11-12 02:26:40,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:40,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 394 transitions. [2023-11-12 02:26:40,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,122 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,122 INFO L175 Difference]: Start difference. First operand has 47 places, 33 transitions, 240 flow. Second operand 5 states and 394 transitions. [2023-11-12 02:26:40,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 59 transitions, 520 flow [2023-11-12 02:26:40,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 462 flow, removed 23 selfloop flow, removed 1 redundant places. [2023-11-12 02:26:40,129 INFO L231 Difference]: Finished difference. Result has 52 places, 28 transitions, 218 flow [2023-11-12 02:26:40,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=52, PETRI_TRANSITIONS=28} [2023-11-12 02:26:40,130 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 26 predicate places. [2023-11-12 02:26:40,130 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 28 transitions, 218 flow [2023-11-12 02:26:40,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:40,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:40,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:26:40,132 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:26:40,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash -58535430, now seen corresponding path program 2 times [2023-11-12 02:26:40,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:40,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973269235] [2023-11-12 02:26:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:40,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:40,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:40,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973269235] [2023-11-12 02:26:40,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973269235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:40,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:40,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:26:40,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760335430] [2023-11-12 02:26:40,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:40,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:26:40,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:40,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:26:40,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:26:40,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 143 [2023-11-12 02:26:40,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 28 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:40,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 143 [2023-11-12 02:26:40,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:40,343 INFO L124 PetriNetUnfolderBase]: 71/167 cut-off events. [2023-11-12 02:26:40,343 INFO L125 PetriNetUnfolderBase]: For 475/509 co-relation queries the response was YES. [2023-11-12 02:26:40,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 167 events. 71/167 cut-off events. For 475/509 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 654 event pairs, 10 based on Foata normal form. 25/187 useless extension candidates. Maximal degree in co-relation 741. Up to 59 conditions per place. [2023-11-12 02:26:40,344 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2023-11-12 02:26:40,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 48 transitions, 450 flow [2023-11-12 02:26:40,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:26:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:26:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 553 transitions. [2023-11-12 02:26:40,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5524475524475524 [2023-11-12 02:26:40,348 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 553 transitions. [2023-11-12 02:26:40,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 553 transitions. [2023-11-12 02:26:40,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:40,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 553 transitions. [2023-11-12 02:26:40,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 143.0) internal successors, (1144), 8 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,353 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 143.0) internal successors, (1144), 8 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,353 INFO L175 Difference]: Start difference. First operand has 52 places, 28 transitions, 218 flow. Second operand 7 states and 553 transitions. [2023-11-12 02:26:40,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 48 transitions, 450 flow [2023-11-12 02:26:40,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 48 transitions, 402 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-11-12 02:26:40,357 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-11-12 02:26:40,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-11-12 02:26:40,358 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 20 predicate places. [2023-11-12 02:26:40,358 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-11-12 02:26:40,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:40,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-12 02:26:40,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-12 02:26:40,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-12 02:26:40,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-12 02:26:40,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:26:40,363 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:40,366 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:26:40,366 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:26:40,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:26:40 BasicIcfg [2023-11-12 02:26:40,373 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:26:40,373 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:26:40,374 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:26:40,374 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:26:40,374 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:34" (3/4) ... [2023-11-12 02:26:40,376 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:26:40,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 02:26:40,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 02:26:40,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 02:26:40,388 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-12 02:26:40,388 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:26:40,388 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:26:40,388 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:26:40,494 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:26:40,494 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:26:40,495 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:26:40,495 INFO L158 Benchmark]: Toolchain (without parser) took 7444.89ms. Allocated memory was 127.9MB in the beginning and 188.7MB in the end (delta: 60.8MB). Free memory was 81.1MB in the beginning and 150.3MB in the end (delta: -69.2MB). Peak memory consumption was 99.5MB. Max. memory is 16.1GB. [2023-11-12 02:26:40,495 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:40,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.46ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 81.1MB in the beginning and 124.8MB in the end (delta: -43.8MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-12 02:26:40,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.64ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:40,496 INFO L158 Benchmark]: Boogie Preprocessor took 28.38ms. Allocated memory is still 157.3MB. Free memory was 122.7MB in the beginning and 121.7MB in the end (delta: 997.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:40,497 INFO L158 Benchmark]: RCFGBuilder took 475.54ms. Allocated memory is still 157.3MB. Free memory was 121.7MB in the beginning and 108.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:26:40,497 INFO L158 Benchmark]: TraceAbstraction took 6129.32ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 107.1MB in the beginning and 46.2MB in the end (delta: 60.9MB). Peak memory consumption was 93.3MB. Max. memory is 16.1GB. [2023-11-12 02:26:40,498 INFO L158 Benchmark]: Witness Printer took 121.17ms. Allocated memory is still 188.7MB. Free memory was 46.2MB in the beginning and 150.3MB in the end (delta: -104.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:40,500 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.46ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 81.1MB in the beginning and 124.8MB in the end (delta: -43.8MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.64ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.38ms. Allocated memory is still 157.3MB. Free memory was 122.7MB in the beginning and 121.7MB in the end (delta: 997.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 475.54ms. Allocated memory is still 157.3MB. Free memory was 121.7MB in the beginning and 108.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6129.32ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 107.1MB in the beginning and 46.2MB in the end (delta: 60.9MB). Peak memory consumption was 93.3MB. Max. memory is 16.1GB. * Witness Printer took 121.17ms. Allocated memory is still 188.7MB. Free memory was 46.2MB in the beginning and 150.3MB in the end (delta: -104.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 77 PlacesBefore, 26 PlacesAfterwards, 68 TransitionsBefore, 17 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 1743 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1019, independent: 950, independent conditional: 0, independent unconditional: 950, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 573, independent: 547, independent conditional: 0, independent unconditional: 547, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1019, independent: 403, independent conditional: 0, independent unconditional: 403, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 573, unknown conditional: 0, unknown unconditional: 573] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 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: 6.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 292 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 224 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 548 IncrementalHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 34 mSDtfsCounter, 548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred in iteration=4, InterpolantAutomatonStates: 45, 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 405 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:26:40,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4e4da0-52e8-4da9-8170-ef72785f8109/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE