./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:05:50,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:05:50,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:05:50,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:05:50,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:05:50,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:05:50,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:05:50,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:05:50,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:05:50,357 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:05:50,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:05:50,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:05:50,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:05:50,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:05:50,358 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:05:50,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:05:50,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:05:50,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:05:50,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:05:50,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:05:50,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:05:50,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:05:50,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:05:50,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:05:50,361 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:05:50,361 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:05:50,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:05:50,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:05:50,362 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:05:50,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:05:50,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:05:50,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:05:50,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:05:50,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:05:50,363 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2024-11-13 16:05:50,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:05:50,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:05:50,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:05:50,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:05:50,706 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:05:50,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i Unable to find full path for "g++" [2024-11-13 16:05:52,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:05:53,162 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:05:53,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2024-11-13 16:05:53,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/data/94d8a6fc4/72548d6a0ce745f6807a9b7258d28df8/FLAG25e004026 [2024-11-13 16:05:53,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/data/94d8a6fc4/72548d6a0ce745f6807a9b7258d28df8 [2024-11-13 16:05:53,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:05:53,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:05:53,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:05:53,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:05:53,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:05:53,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:05:53" (1/1) ... [2024-11-13 16:05:53,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c2f03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:53, skipping insertion in model container [2024-11-13 16:05:53,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:05:53" (1/1) ... [2024-11-13 16:05:53,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:05:53,792 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2024-11-13 16:05:53,944 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2024-11-13 16:05:53,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:05:53,980 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:05:54,020 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2024-11-13 16:05:54,089 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2024-11-13 16:05:54,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:05:54,135 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:05:54,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54 WrapperNode [2024-11-13 16:05:54,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:05:54,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:05:54,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:05:54,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:05:54,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,247 INFO L138 Inliner]: procedures = 177, calls = 340, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1550 [2024-11-13 16:05:54,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:05:54,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:05:54,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:05:54,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:05:54,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,447 INFO L175 MemorySlicer]: Split 304 memory accesses to 3 slices as follows [2, 34, 268]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2024-11-13 16:05:54,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:05:54,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:05:54,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:05:54,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:05:54,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (1/1) ... [2024-11-13 16:05:54,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:05:54,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:54,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:54,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:05:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:05:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:05:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:05:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:05:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:05:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:05:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:05:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:05:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 16:05:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 16:05:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 16:05:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 16:05:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 16:05:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 16:05:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2024-11-13 16:05:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2024-11-13 16:05:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:05:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:05:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 16:05:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 16:05:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 16:05:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:05:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 16:05:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 16:05:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 16:05:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:05:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:05:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:05:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:05:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:05:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:05:54,983 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:05:54,985 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:05:57,425 INFO L? ?]: Removed 354 outVars from TransFormulas that were not future-live. [2024-11-13 16:05:57,425 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:05:57,447 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:05:57,447 INFO L316 CfgBuilder]: Removed 71 assume(true) statements. [2024-11-13 16:05:57,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:05:57 BoogieIcfgContainer [2024-11-13 16:05:57,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:05:57,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:05:57,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:05:57,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:05:57,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:05:53" (1/3) ... [2024-11-13 16:05:57,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100ca1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:05:57, skipping insertion in model container [2024-11-13 16:05:57,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:54" (2/3) ... [2024-11-13 16:05:57,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100ca1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:05:57, skipping insertion in model container [2024-11-13 16:05:57,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:05:57" (3/3) ... [2024-11-13 16:05:57,459 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-2.i [2024-11-13 16:05:57,479 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:05:57,480 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test8-2.i that has 6 procedures, 477 locations, 1 initial locations, 42 loop locations, and 2 error locations. [2024-11-13 16:05:57,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:05:57,569 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47232b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:05:57,569 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:05:57,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 469 states, 443 states have (on average 1.6297968397291196) internal successors, (722), 460 states have internal predecessors, (722), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 16:05:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:05:57,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:57,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:57,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:57,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:57,587 INFO L85 PathProgramCache]: Analyzing trace with hash -306014078, now seen corresponding path program 1 times [2024-11-13 16:05:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:57,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596214215] [2024-11-13 16:05:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:57,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:57,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:57,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596214215] [2024-11-13 16:05:57,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596214215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:57,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:57,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:05:57,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715976238] [2024-11-13 16:05:57,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:57,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:05:57,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:57,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:05:57,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:05:57,814 INFO L87 Difference]: Start difference. First operand has 469 states, 443 states have (on average 1.6297968397291196) internal successors, (722), 460 states have internal predecessors, (722), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:05:57,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:57,918 INFO L93 Difference]: Finished difference Result 936 states and 1539 transitions. [2024-11-13 16:05:57,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:05:57,920 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9 [2024-11-13 16:05:57,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:57,931 INFO L225 Difference]: With dead ends: 936 [2024-11-13 16:05:57,931 INFO L226 Difference]: Without dead ends: 431 [2024-11-13 16:05:57,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:05:57,939 INFO L432 NwaCegarLoop]: 685 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:57,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:05:57,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-13 16:05:58,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2024-11-13 16:05:58,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 406 states have (on average 1.4630541871921183) internal successors, (594), 422 states have internal predecessors, (594), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 16:05:58,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 634 transitions. [2024-11-13 16:05:58,035 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 634 transitions. Word has length 9 [2024-11-13 16:05:58,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:58,035 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 634 transitions. [2024-11-13 16:05:58,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:05:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 634 transitions. [2024-11-13 16:05:58,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 16:05:58,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:58,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:58,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:05:58,040 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:58,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:58,042 INFO L85 PathProgramCache]: Analyzing trace with hash -51823395, now seen corresponding path program 1 times [2024-11-13 16:05:58,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:58,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256173355] [2024-11-13 16:05:58,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:58,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:58,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:58,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256173355] [2024-11-13 16:05:58,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256173355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:58,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:58,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:05:58,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791988003] [2024-11-13 16:05:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:58,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:05:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:05:58,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:05:58,843 INFO L87 Difference]: Start difference. First operand 431 states and 634 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:05:59,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:59,086 INFO L93 Difference]: Finished difference Result 1043 states and 1535 transitions. [2024-11-13 16:05:59,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:05:59,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-13 16:05:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:59,092 INFO L225 Difference]: With dead ends: 1043 [2024-11-13 16:05:59,092 INFO L226 Difference]: Without dead ends: 815 [2024-11-13 16:05:59,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:05:59,095 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 546 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:59,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1837 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:05:59,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-11-13 16:05:59,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 433. [2024-11-13 16:05:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 408 states have (on average 1.4607843137254901) internal successors, (596), 424 states have internal predecessors, (596), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 16:05:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 636 transitions. [2024-11-13 16:05:59,149 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 636 transitions. Word has length 64 [2024-11-13 16:05:59,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:59,150 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 636 transitions. [2024-11-13 16:05:59,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:05:59,150 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 636 transitions. [2024-11-13 16:05:59,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 16:05:59,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:59,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:59,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:05:59,156 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:59,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:59,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1670361694, now seen corresponding path program 1 times [2024-11-13 16:05:59,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:59,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638350995] [2024-11-13 16:05:59,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:59,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638350995] [2024-11-13 16:05:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638350995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:59,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:59,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:05:59,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204390291] [2024-11-13 16:05:59,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:59,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:05:59,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:59,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:05:59,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:05:59,783 INFO L87 Difference]: Start difference. First operand 433 states and 636 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:05:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:59,937 INFO L93 Difference]: Finished difference Result 820 states and 1202 transitions. [2024-11-13 16:05:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:05:59,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-13 16:05:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:59,942 INFO L225 Difference]: With dead ends: 820 [2024-11-13 16:05:59,943 INFO L226 Difference]: Without dead ends: 391 [2024-11-13 16:05:59,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:05:59,946 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 30 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:59,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1575 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:05:59,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-13 16:05:59,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-13 16:05:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 366 states have (on average 1.4180327868852458) internal successors, (519), 382 states have internal predecessors, (519), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 16:05:59,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 559 transitions. [2024-11-13 16:05:59,973 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 559 transitions. Word has length 85 [2024-11-13 16:05:59,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:59,974 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 559 transitions. [2024-11-13 16:05:59,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:05:59,974 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 559 transitions. [2024-11-13 16:05:59,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 16:05:59,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:59,980 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:59,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:05:59,980 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:59,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:59,981 INFO L85 PathProgramCache]: Analyzing trace with hash 62389136, now seen corresponding path program 1 times [2024-11-13 16:05:59,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:59,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101436003] [2024-11-13 16:05:59,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:59,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:06:00,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:00,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101436003] [2024-11-13 16:06:00,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101436003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:00,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:06:00,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:06:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998201128] [2024-11-13 16:06:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:00,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:06:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:06:00,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:06:00,271 INFO L87 Difference]: Start difference. First operand 391 states and 559 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:06:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:00,359 INFO L93 Difference]: Finished difference Result 778 states and 1114 transitions. [2024-11-13 16:06:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:06:00,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-13 16:06:00,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:00,363 INFO L225 Difference]: With dead ends: 778 [2024-11-13 16:06:00,365 INFO L226 Difference]: Without dead ends: 391 [2024-11-13 16:06:00,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:06:00,367 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 1 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:00,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1068 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:06:00,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-13 16:06:00,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-13 16:06:00,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 366 states have (on average 1.4098360655737705) internal successors, (516), 382 states have internal predecessors, (516), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 16:06:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 556 transitions. [2024-11-13 16:06:00,396 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 556 transitions. Word has length 85 [2024-11-13 16:06:00,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:00,397 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 556 transitions. [2024-11-13 16:06:00,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:06:00,398 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 556 transitions. [2024-11-13 16:06:00,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 16:06:00,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:00,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:00,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:06:00,402 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:00,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:00,402 INFO L85 PathProgramCache]: Analyzing trace with hash -854304620, now seen corresponding path program 1 times [2024-11-13 16:06:00,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:00,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035507520] [2024-11-13 16:06:00,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:00,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:06:00,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:00,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035507520] [2024-11-13 16:06:00,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035507520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:00,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:06:00,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:06:00,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025426115] [2024-11-13 16:06:00,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:00,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:06:00,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:00,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:06:00,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:06:00,685 INFO L87 Difference]: Start difference. First operand 391 states and 556 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:06:00,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:00,828 INFO L93 Difference]: Finished difference Result 1030 states and 1467 transitions. [2024-11-13 16:06:00,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:06:00,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-13 16:06:00,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:00,834 INFO L225 Difference]: With dead ends: 1030 [2024-11-13 16:06:00,834 INFO L226 Difference]: Without dead ends: 643 [2024-11-13 16:06:00,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:06:00,836 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 295 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:00,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1267 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:06:00,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-13 16:06:00,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 640. [2024-11-13 16:06:00,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 614 states have (on average 1.4153094462540716) internal successors, (869), 630 states have internal predecessors, (869), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 911 transitions. [2024-11-13 16:06:00,878 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 911 transitions. Word has length 85 [2024-11-13 16:06:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:00,878 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 911 transitions. [2024-11-13 16:06:00,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:06:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 911 transitions. [2024-11-13 16:06:00,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 16:06:00,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:00,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:00,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:06:00,882 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:00,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2654623, now seen corresponding path program 1 times [2024-11-13 16:06:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:00,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986893174] [2024-11-13 16:06:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:00,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:01,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:06:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:01,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:06:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:06:01,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:01,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986893174] [2024-11-13 16:06:01,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986893174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:01,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708985085] [2024-11-13 16:06:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:01,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:01,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:01,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:01,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:06:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:02,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 16:06:02,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:02,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:06:02,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-11-13 16:06:03,610 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:06:03,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:06:03,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708985085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:03,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:06:03,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-13 16:06:03,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738447695] [2024-11-13 16:06:03,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:03,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:06:03,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:03,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:06:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-13 16:06:03,612 INFO L87 Difference]: Start difference. First operand 640 states and 911 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:06,352 INFO L93 Difference]: Finished difference Result 1522 states and 2179 transitions. [2024-11-13 16:06:06,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 16:06:06,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 100 [2024-11-13 16:06:06,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:06,359 INFO L225 Difference]: With dead ends: 1522 [2024-11-13 16:06:06,359 INFO L226 Difference]: Without dead ends: 926 [2024-11-13 16:06:06,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-13 16:06:06,361 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 586 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:06,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 3638 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 16:06:06,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-13 16:06:06,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 640. [2024-11-13 16:06:06,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 614 states have (on average 1.4136807817589576) internal successors, (868), 630 states have internal predecessors, (868), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 910 transitions. [2024-11-13 16:06:06,401 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 910 transitions. Word has length 100 [2024-11-13 16:06:06,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:06,401 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 910 transitions. [2024-11-13 16:06:06,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:06,402 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 910 transitions. [2024-11-13 16:06:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 16:06:06,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:06,403 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:06,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:06:06,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:06,608 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:06,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:06,608 INFO L85 PathProgramCache]: Analyzing trace with hash -231523409, now seen corresponding path program 1 times [2024-11-13 16:06:06,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:06,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005979048] [2024-11-13 16:06:06,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:06,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:07,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 16:06:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:07,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 16:06:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:06:07,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:07,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005979048] [2024-11-13 16:06:07,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005979048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:07,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568497974] [2024-11-13 16:06:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:07,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:07,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:07,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:07,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:06:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:07,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 16:06:07,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:07,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:06:07,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-11-13 16:06:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:06:08,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:06:08,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568497974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:08,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:06:08,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2024-11-13 16:06:08,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500564354] [2024-11-13 16:06:08,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:08,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:06:08,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:08,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:06:08,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:06:08,966 INFO L87 Difference]: Start difference. First operand 640 states and 910 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:11,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:11,015 INFO L93 Difference]: Finished difference Result 1533 states and 2195 transitions. [2024-11-13 16:06:11,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 16:06:11,016 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2024-11-13 16:06:11,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:11,021 INFO L225 Difference]: With dead ends: 1533 [2024-11-13 16:06:11,021 INFO L226 Difference]: Without dead ends: 942 [2024-11-13 16:06:11,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2024-11-13 16:06:11,023 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 661 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:11,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 2468 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 16:06:11,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-13 16:06:11,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 652. [2024-11-13 16:06:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 626 states have (on average 1.4121405750798721) internal successors, (884), 642 states have internal predecessors, (884), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 926 transitions. [2024-11-13 16:06:11,060 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 926 transitions. Word has length 101 [2024-11-13 16:06:11,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:11,061 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 926 transitions. [2024-11-13 16:06:11,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 926 transitions. [2024-11-13 16:06:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 16:06:11,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:11,063 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:11,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:06:11,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:11,264 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:11,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:11,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1401255757, now seen corresponding path program 1 times [2024-11-13 16:06:11,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:11,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892216483] [2024-11-13 16:06:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:11,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:11,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 16:06:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:11,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 16:06:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:06:11,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:11,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892216483] [2024-11-13 16:06:11,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892216483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:11,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:06:11,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:06:11,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705151664] [2024-11-13 16:06:11,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:11,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:06:11,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:11,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:06:11,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:06:11,711 INFO L87 Difference]: Start difference. First operand 652 states and 926 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:13,064 INFO L93 Difference]: Finished difference Result 1259 states and 1806 transitions. [2024-11-13 16:06:13,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:06:13,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2024-11-13 16:06:13,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:13,069 INFO L225 Difference]: With dead ends: 1259 [2024-11-13 16:06:13,070 INFO L226 Difference]: Without dead ends: 665 [2024-11-13 16:06:13,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:06:13,071 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 70 mSDsluCounter, 2359 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:13,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 2820 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 16:06:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-13 16:06:13,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 660. [2024-11-13 16:06:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 634 states have (on average 1.4100946372239747) internal successors, (894), 650 states have internal predecessors, (894), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 936 transitions. [2024-11-13 16:06:13,101 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 936 transitions. Word has length 102 [2024-11-13 16:06:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:13,101 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 936 transitions. [2024-11-13 16:06:13,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 936 transitions. [2024-11-13 16:06:13,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 16:06:13,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:13,103 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:13,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:06:13,103 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:13,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1416457274, now seen corresponding path program 1 times [2024-11-13 16:06:13,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:13,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865068095] [2024-11-13 16:06:13,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:13,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:13,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 16:06:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:13,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 16:06:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:06:13,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:13,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865068095] [2024-11-13 16:06:13,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865068095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:13,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:06:13,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:06:13,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238634503] [2024-11-13 16:06:13,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:13,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:06:13,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:13,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:06:13,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:06:13,533 INFO L87 Difference]: Start difference. First operand 660 states and 936 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:14,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:14,548 INFO L93 Difference]: Finished difference Result 1274 states and 1826 transitions. [2024-11-13 16:06:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:06:14,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2024-11-13 16:06:14,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:14,554 INFO L225 Difference]: With dead ends: 1274 [2024-11-13 16:06:14,554 INFO L226 Difference]: Without dead ends: 669 [2024-11-13 16:06:14,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:06:14,556 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 65 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:14,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 2449 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 16:06:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-13 16:06:14,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 666. [2024-11-13 16:06:14,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 640 states have (on average 1.40625) internal successors, (900), 656 states have internal predecessors, (900), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 942 transitions. [2024-11-13 16:06:14,593 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 942 transitions. Word has length 102 [2024-11-13 16:06:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:14,594 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 942 transitions. [2024-11-13 16:06:14,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 942 transitions. [2024-11-13 16:06:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 16:06:14,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:14,596 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:14,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:06:14,597 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:14,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:14,597 INFO L85 PathProgramCache]: Analyzing trace with hash 913167939, now seen corresponding path program 1 times [2024-11-13 16:06:14,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:14,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140249408] [2024-11-13 16:06:14,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:14,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:14,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 16:06:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:15,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 16:06:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:06:15,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:15,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140249408] [2024-11-13 16:06:15,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140249408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:15,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281937668] [2024-11-13 16:06:15,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:15,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:15,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:15,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:15,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:06:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:15,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 16:06:15,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:06:15,587 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:06:15,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281937668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:15,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:06:15,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-13 16:06:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335863781] [2024-11-13 16:06:15,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:15,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:06:15,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:06:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:06:15,590 INFO L87 Difference]: Start difference. First operand 666 states and 942 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:16,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:16,015 INFO L93 Difference]: Finished difference Result 1285 states and 1835 transitions. [2024-11-13 16:06:16,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:06:16,017 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 103 [2024-11-13 16:06:16,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:16,020 INFO L225 Difference]: With dead ends: 1285 [2024-11-13 16:06:16,021 INFO L226 Difference]: Without dead ends: 670 [2024-11-13 16:06:16,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:06:16,022 INFO L432 NwaCegarLoop]: 532 mSDtfsCounter, 43 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:16,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2888 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 16:06:16,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-13 16:06:16,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 658. [2024-11-13 16:06:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 632 states have (on average 1.4018987341772151) internal successors, (886), 648 states have internal predecessors, (886), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 928 transitions. [2024-11-13 16:06:16,057 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 928 transitions. Word has length 103 [2024-11-13 16:06:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:16,057 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 928 transitions. [2024-11-13 16:06:16,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 928 transitions. [2024-11-13 16:06:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 16:06:16,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:16,060 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:16,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 16:06:16,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 16:06:16,265 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:16,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:16,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2013783404, now seen corresponding path program 1 times [2024-11-13 16:06:16,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:16,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409897321] [2024-11-13 16:06:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:16,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 16:06:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:16,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 16:06:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:06:16,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:16,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409897321] [2024-11-13 16:06:16,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409897321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:16,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154083297] [2024-11-13 16:06:16,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:16,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:16,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:16,723 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:16,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:06:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:17,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:06:17,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:06:29,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:06:29,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154083297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:29,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:06:29,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-13 16:06:29,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910001690] [2024-11-13 16:06:29,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:29,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:06:29,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:29,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:06:29,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:06:29,777 INFO L87 Difference]: Start difference. First operand 658 states and 928 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:34,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:06:37,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:06:38,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:38,581 INFO L93 Difference]: Finished difference Result 1263 states and 1800 transitions. [2024-11-13 16:06:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:06:38,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 103 [2024-11-13 16:06:38,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:38,585 INFO L225 Difference]: With dead ends: 1263 [2024-11-13 16:06:38,585 INFO L226 Difference]: Without dead ends: 668 [2024-11-13 16:06:38,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:06:38,588 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 12 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:38,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2867 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 423 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2024-11-13 16:06:38,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-13 16:06:38,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 658. [2024-11-13 16:06:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 632 states have (on average 1.4018987341772151) internal successors, (886), 648 states have internal predecessors, (886), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:38,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 928 transitions. [2024-11-13 16:06:38,619 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 928 transitions. Word has length 103 [2024-11-13 16:06:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:38,619 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 928 transitions. [2024-11-13 16:06:38,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:38,619 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 928 transitions. [2024-11-13 16:06:38,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 16:06:38,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:38,621 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:38,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 16:06:38,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 16:06:38,827 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:38,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:38,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1647028572, now seen corresponding path program 1 times [2024-11-13 16:06:38,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:38,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419281895] [2024-11-13 16:06:38,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:38,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:39,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 16:06:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:39,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 16:06:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:39,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:06:39,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:39,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419281895] [2024-11-13 16:06:39,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419281895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:39,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:06:39,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 16:06:39,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502977974] [2024-11-13 16:06:39,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:39,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:06:39,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:39,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:06:39,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:06:39,448 INFO L87 Difference]: Start difference. First operand 658 states and 928 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:41,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:41,396 INFO L93 Difference]: Finished difference Result 1288 states and 1835 transitions. [2024-11-13 16:06:41,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 16:06:41,396 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2024-11-13 16:06:41,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:41,400 INFO L225 Difference]: With dead ends: 1288 [2024-11-13 16:06:41,401 INFO L226 Difference]: Without dead ends: 693 [2024-11-13 16:06:41,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:06:41,403 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 82 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:41,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 3677 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 16:06:41,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-13 16:06:41,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 678. [2024-11-13 16:06:41,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 652 states have (on average 1.3957055214723926) internal successors, (910), 668 states have internal predecessors, (910), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 952 transitions. [2024-11-13 16:06:41,432 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 952 transitions. Word has length 105 [2024-11-13 16:06:41,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:41,433 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 952 transitions. [2024-11-13 16:06:41,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 952 transitions. [2024-11-13 16:06:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 16:06:41,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:41,435 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:41,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:06:41,435 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:41,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:41,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1371685824, now seen corresponding path program 1 times [2024-11-13 16:06:41,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:41,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802787423] [2024-11-13 16:06:41,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:41,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:41,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 16:06:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:41,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 16:06:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:41,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:06:41,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:41,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802787423] [2024-11-13 16:06:41,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802787423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:41,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598774556] [2024-11-13 16:06:41,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:41,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:41,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:41,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:41,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:06:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:43,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 16:06:43,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:43,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:06:43,823 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:06:43,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598774556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:43,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:06:43,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-13 16:06:43,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903373095] [2024-11-13 16:06:43,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:43,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:06:43,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:43,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:06:43,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-13 16:06:43,825 INFO L87 Difference]: Start difference. First operand 678 states and 952 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:45,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:45,802 INFO L93 Difference]: Finished difference Result 1293 states and 1831 transitions. [2024-11-13 16:06:45,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:06:45,804 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2024-11-13 16:06:45,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:45,808 INFO L225 Difference]: With dead ends: 1293 [2024-11-13 16:06:45,808 INFO L226 Difference]: Without dead ends: 688 [2024-11-13 16:06:45,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-13 16:06:45,811 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 11 mSDsluCounter, 4176 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:45,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4711 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 16:06:45,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-13 16:06:45,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 684. [2024-11-13 16:06:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 658 states have (on average 1.3920972644376899) internal successors, (916), 674 states have internal predecessors, (916), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:06:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 958 transitions. [2024-11-13 16:06:45,838 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 958 transitions. Word has length 105 [2024-11-13 16:06:45,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:45,838 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 958 transitions. [2024-11-13 16:06:45,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:45,839 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 958 transitions. [2024-11-13 16:06:45,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 16:06:45,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:45,840 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:45,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 16:06:46,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:46,041 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:46,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:46,041 INFO L85 PathProgramCache]: Analyzing trace with hash 374545927, now seen corresponding path program 1 times [2024-11-13 16:06:46,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:46,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302792033] [2024-11-13 16:06:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:46,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:46,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 16:06:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:46,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 16:06:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:06:46,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:46,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302792033] [2024-11-13 16:06:46,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302792033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:46,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262510917] [2024-11-13 16:06:46,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:46,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:46,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:46,471 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:46,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:06:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:46,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:06:47,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:47,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:06:47,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:06:47,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262510917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:47,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:06:47,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-11-13 16:06:47,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120702849] [2024-11-13 16:06:47,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:47,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:06:47,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:47,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:06:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:06:47,042 INFO L87 Difference]: Start difference. First operand 684 states and 958 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:47,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:47,105 INFO L93 Difference]: Finished difference Result 1258 states and 1780 transitions. [2024-11-13 16:06:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:06:47,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2024-11-13 16:06:47,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:47,109 INFO L225 Difference]: With dead ends: 1258 [2024-11-13 16:06:47,110 INFO L226 Difference]: Without dead ends: 687 [2024-11-13 16:06:47,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:06:47,112 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 0 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:47,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1637 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:06:47,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-13 16:06:47,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2024-11-13 16:06:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 660 states have (on average 1.3924242424242423) internal successors, (919), 677 states have internal predecessors, (919), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 16:06:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 962 transitions. [2024-11-13 16:06:47,141 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 962 transitions. Word has length 105 [2024-11-13 16:06:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:47,142 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 962 transitions. [2024-11-13 16:06:47,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 962 transitions. [2024-11-13 16:06:47,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 16:06:47,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:47,144 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:47,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 16:06:47,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:47,345 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:47,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:47,345 INFO L85 PathProgramCache]: Analyzing trace with hash 192960741, now seen corresponding path program 1 times [2024-11-13 16:06:47,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:47,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920325705] [2024-11-13 16:06:47,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:47,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:47,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 16:06:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:47,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 16:06:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:06:47,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:47,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920325705] [2024-11-13 16:06:47,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920325705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:47,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165955140] [2024-11-13 16:06:47,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:47,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:47,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:47,851 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:47,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 16:06:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:48,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 16:06:48,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:48,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:06:48,699 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:06:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:06:48,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165955140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:06:48,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:06:48,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2024-11-13 16:06:48,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803622360] [2024-11-13 16:06:48,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:06:48,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:06:48,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:48,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:06:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:06:48,894 INFO L87 Difference]: Start difference. First operand 687 states and 962 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 states have internal predecessors, (113), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:06:49,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:49,790 INFO L93 Difference]: Finished difference Result 1272 states and 1802 transitions. [2024-11-13 16:06:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 16:06:49,791 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 states have internal predecessors, (113), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-13 16:06:49,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:49,796 INFO L225 Difference]: With dead ends: 1272 [2024-11-13 16:06:49,796 INFO L226 Difference]: Without dead ends: 696 [2024-11-13 16:06:49,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:06:49,801 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 62 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:49,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2780 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 16:06:49,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-13 16:06:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2024-11-13 16:06:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 668 states have (on average 1.3937125748502994) internal successors, (931), 685 states have internal predecessors, (931), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (23), 7 states have call predecessors, (23), 21 states have call successors, (23) [2024-11-13 16:06:49,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 975 transitions. [2024-11-13 16:06:49,849 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 975 transitions. Word has length 107 [2024-11-13 16:06:49,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:49,850 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 975 transitions. [2024-11-13 16:06:49,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 states have internal predecessors, (113), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:06:49,850 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 975 transitions. [2024-11-13 16:06:49,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 16:06:49,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:49,853 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:49,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 16:06:50,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 16:06:50,055 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:50,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:50,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1738840903, now seen corresponding path program 2 times [2024-11-13 16:06:50,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:50,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127866292] [2024-11-13 16:06:50,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:50,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:50,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 16:06:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:50,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 16:06:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 16:06:50,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:50,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127866292] [2024-11-13 16:06:50,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127866292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:50,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455206941] [2024-11-13 16:06:50,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:06:50,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:50,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:50,718 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:50,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 16:06:51,228 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:06:51,228 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:06:51,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 16:06:51,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-13 16:06:51,564 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:06:51,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455206941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:51,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:06:51,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-13 16:06:51,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479194519] [2024-11-13 16:06:51,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:51,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:06:51,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:06:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:06:51,566 INFO L87 Difference]: Start difference. First operand 696 states and 975 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:52,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:52,103 INFO L93 Difference]: Finished difference Result 1326 states and 1879 transitions. [2024-11-13 16:06:52,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:06:52,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 111 [2024-11-13 16:06:52,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:52,107 INFO L225 Difference]: With dead ends: 1326 [2024-11-13 16:06:52,107 INFO L226 Difference]: Without dead ends: 706 [2024-11-13 16:06:52,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:06:52,110 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 10 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:52,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2867 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:06:52,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-13 16:06:52,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 696. [2024-11-13 16:06:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 668 states have (on average 1.3937125748502994) internal successors, (931), 685 states have internal predecessors, (931), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (23), 7 states have call predecessors, (23), 21 states have call successors, (23) [2024-11-13 16:06:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 975 transitions. [2024-11-13 16:06:52,139 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 975 transitions. Word has length 111 [2024-11-13 16:06:52,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:52,139 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 975 transitions. [2024-11-13 16:06:52,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:06:52,140 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 975 transitions. [2024-11-13 16:06:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 16:06:52,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:52,145 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:52,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 16:06:52,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 16:06:52,346 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:52,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:52,346 INFO L85 PathProgramCache]: Analyzing trace with hash 484979659, now seen corresponding path program 1 times [2024-11-13 16:06:52,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:52,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302446154] [2024-11-13 16:06:52,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:52,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:52,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:06:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:52,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 16:06:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 16:06:52,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:52,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302446154] [2024-11-13 16:06:52,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302446154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:52,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512661606] [2024-11-13 16:06:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:52,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:52,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:52,993 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:52,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 16:06:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:53,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 16:06:53,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 16:06:53,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:06:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 16:06:53,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512661606] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:06:53,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:06:53,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 14 [2024-11-13 16:06:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677172663] [2024-11-13 16:06:53,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:06:53,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 16:06:53,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:53,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 16:06:53,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-13 16:06:53,902 INFO L87 Difference]: Start difference. First operand 696 states and 975 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:06:55,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:55,050 INFO L93 Difference]: Finished difference Result 1287 states and 1821 transitions. [2024-11-13 16:06:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 16:06:55,051 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-13 16:06:55,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:55,055 INFO L225 Difference]: With dead ends: 1287 [2024-11-13 16:06:55,055 INFO L226 Difference]: Without dead ends: 702 [2024-11-13 16:06:55,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2024-11-13 16:06:55,057 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 85 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3161 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:55,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3161 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:06:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-13 16:06:55,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 700. [2024-11-13 16:06:55,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 672 states have (on average 1.3943452380952381) internal successors, (937), 689 states have internal predecessors, (937), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 16:06:55,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 980 transitions. [2024-11-13 16:06:55,083 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 980 transitions. Word has length 112 [2024-11-13 16:06:55,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:55,084 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 980 transitions. [2024-11-13 16:06:55,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:06:55,084 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 980 transitions. [2024-11-13 16:06:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 16:06:55,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:55,085 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:55,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 16:06:55,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 16:06:55,289 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:55,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:55,290 INFO L85 PathProgramCache]: Analyzing trace with hash -988942261, now seen corresponding path program 2 times [2024-11-13 16:06:55,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:55,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871515366] [2024-11-13 16:06:55,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:55,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:55,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:06:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:56,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 16:06:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:56,212 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 16:06:56,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:56,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871515366] [2024-11-13 16:06:56,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871515366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:06:56,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218077559] [2024-11-13 16:06:56,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:06:56,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:56,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:56,216 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:56,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 16:06:59,711 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:06:59,712 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:06:59,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 16:06:59,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:59,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:06:59,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-11-13 16:07:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-13 16:07:00,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:07:00,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218077559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:07:00,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:07:00,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2024-11-13 16:07:00,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315259411] [2024-11-13 16:07:00,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:07:00,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:07:00,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:00,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:07:00,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-11-13 16:07:00,953 INFO L87 Difference]: Start difference. First operand 700 states and 980 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:07:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:02,785 INFO L93 Difference]: Finished difference Result 1607 states and 2274 transitions. [2024-11-13 16:07:02,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 16:07:02,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 116 [2024-11-13 16:07:02,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:02,789 INFO L225 Difference]: With dead ends: 1607 [2024-11-13 16:07:02,789 INFO L226 Difference]: Without dead ends: 973 [2024-11-13 16:07:02,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2024-11-13 16:07:02,791 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 567 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:07:02,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 3213 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 16:07:02,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2024-11-13 16:07:02,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 687. [2024-11-13 16:07:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 659 states have (on average 1.3975720789074355) internal successors, (921), 676 states have internal predecessors, (921), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 16:07:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 964 transitions. [2024-11-13 16:07:02,817 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 964 transitions. Word has length 116 [2024-11-13 16:07:02,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:02,817 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 964 transitions. [2024-11-13 16:07:02,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:07:02,818 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 964 transitions. [2024-11-13 16:07:02,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 16:07:02,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:02,819 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:02,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 16:07:03,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 16:07:03,020 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:03,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:03,020 INFO L85 PathProgramCache]: Analyzing trace with hash -241965337, now seen corresponding path program 1 times [2024-11-13 16:07:03,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:03,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676888214] [2024-11-13 16:07:03,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:03,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:03,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:07:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:03,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 16:07:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:03,835 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 16:07:03,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:03,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676888214] [2024-11-13 16:07:03,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676888214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:07:03,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321115823] [2024-11-13 16:07:03,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:03,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:07:03,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:07:03,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:07:03,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 16:07:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:04,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 16:07:04,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:07:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 22 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 16:07:04,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:07:13,138 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 37 proven. 8 refuted. 2 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 16:07:13,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321115823] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:07:13,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:07:13,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 23 [2024-11-13 16:07:13,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682325329] [2024-11-13 16:07:13,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:07:13,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 16:07:13,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:13,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 16:07:13,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=378, Unknown=2, NotChecked=0, Total=506 [2024-11-13 16:07:13,141 INFO L87 Difference]: Start difference. First operand 687 states and 964 transitions. Second operand has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 22 states have internal predecessors, (127), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:07:14,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:14,876 INFO L93 Difference]: Finished difference Result 1295 states and 1834 transitions. [2024-11-13 16:07:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 16:07:14,877 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 22 states have internal predecessors, (127), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 116 [2024-11-13 16:07:14,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:14,880 INFO L225 Difference]: With dead ends: 1295 [2024-11-13 16:07:14,880 INFO L226 Difference]: Without dead ends: 702 [2024-11-13 16:07:14,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=344, Invalid=914, Unknown=2, NotChecked=0, Total=1260 [2024-11-13 16:07:14,882 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 92 mSDsluCounter, 3638 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 4106 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:07:14,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 4106 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 16:07:14,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-13 16:07:14,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 696. [2024-11-13 16:07:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 668 states have (on average 1.401197604790419) internal successors, (936), 685 states have internal predecessors, (936), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 16:07:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 979 transitions. [2024-11-13 16:07:14,906 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 979 transitions. Word has length 116 [2024-11-13 16:07:14,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:14,907 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 979 transitions. [2024-11-13 16:07:14,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 22 states have internal predecessors, (127), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:07:14,907 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 979 transitions. [2024-11-13 16:07:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 16:07:14,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:14,909 INFO L215 NwaCegarLoop]: trace histogram [19, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:14,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 16:07:15,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:07:15,111 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:15,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:15,111 INFO L85 PathProgramCache]: Analyzing trace with hash 656158561, now seen corresponding path program 2 times [2024-11-13 16:07:15,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:15,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201211345] [2024-11-13 16:07:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:15,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:15,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:07:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:16,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 16:07:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-13 16:07:16,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:16,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201211345] [2024-11-13 16:07:16,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201211345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:07:16,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683393016] [2024-11-13 16:07:16,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:07:16,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:07:16,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:07:16,305 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:07:16,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 16:07:26,783 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:07:26,783 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:07:26,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 16:07:26,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:07:46,216 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:07:58,244 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:08:06,273 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:08:12,015 WARN L286 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:08:20,028 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:08:28,069 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:08:44,397 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:08:52,408 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:05,157 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:20,691 WARN L286 SmtUtils]: Spent 7.23s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:28,705 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:40,754 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:57,274 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:05,303 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:10,749 WARN L286 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:22,778 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:30,798 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:38,893 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:44,428 WARN L286 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:50,781 WARN L286 SmtUtils]: Spent 6.35s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:58,794 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:11:06,831 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:11:22,876 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:11:26,913 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (* |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967295))) (or (exists ((v_z_34 Int)) (and (exists ((v_z_30 Int)) (let ((.cse0 (mod (+ (* v_z_30 2) |c_ULTIMATE.start_main_~_hj_j~0#1|) 4294967296))) (and (<= (+ .cse0 v_z_34) 4294967295) (exists ((v_y_34 Int) (v_y_28 Int) (v_y_32 Int)) (let ((.cse1 (+ (* v_y_32 17592186044416) (* v_z_34 74377416185475460239360) v_z_30 (* v_y_34 74377416202792801927168)))) (and (= (* .cse0 256) (+ (* 17596481011712 v_y_32) (* v_y_34 74395574751670436888576) |c_ULTIMATE.start_main_~_hj_j~0#1| v_z_30 (* v_y_28 4294967296) (* v_z_34 74395574734348867333889))) (<= 0 .cse1) (= (+ (mod (+ .cse2 (* v_z_30 4294967294) 2672409286) 4294967296) (* v_z_34 4294967295) (* v_y_34 4294967296)) 4294967296) (<= .cse1 4294967295)))) (<= v_z_30 4095) (<= 0 v_z_30)))) (<= v_z_34 4294967295) (<= 0 v_z_34))) (exists ((v_z_34 Int)) (and (exists ((v_z_30 Int)) (let ((.cse4 (mod (+ (* v_z_30 2) |c_ULTIMATE.start_main_~_hj_j~0#1|) 4294967296))) (and (exists ((v_y_34 Int) (v_y_28 Int) (v_y_32 Int)) (let ((.cse3 (+ (* v_y_32 17592186044416) (* v_z_34 74377416185475460239360) v_z_30 (* v_y_34 74377416202792801927168)))) (and (<= 0 .cse3) (= (+ (mod (+ .cse2 (* v_z_30 4294967294) 2672409286) 4294967296) (* v_z_34 4294967295) (* v_y_34 4294967296)) 4294967296) (<= .cse3 4294967295) (= (* .cse4 256) (+ (* 17596481011712 v_y_32) (* v_y_34 74395574751670436888576) 1099511627776 |c_ULTIMATE.start_main_~_hj_j~0#1| v_z_30 (* v_y_28 4294967296) (* v_z_34 74395574734348867333889)))))) (<= 4294967296 (+ .cse4 v_z_34)) (<= v_z_30 4095) (<= 0 v_z_30)))) (<= v_z_34 4294967295) (<= 0 v_z_34))))) is different from false [2024-11-13 16:11:30,922 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (* |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967295))) (or (exists ((v_z_34 Int)) (and (exists ((v_z_30 Int)) (let ((.cse0 (mod (+ (* v_z_30 2) |c_ULTIMATE.start_main_~_hj_j~0#1|) 4294967296))) (and (<= (+ .cse0 v_z_34) 4294967295) (exists ((v_y_34 Int) (v_y_28 Int) (v_y_32 Int)) (let ((.cse1 (+ (* v_y_32 17592186044416) (* v_z_34 74377416185475460239360) v_z_30 (* v_y_34 74377416202792801927168)))) (and (= (* .cse0 256) (+ (* 17596481011712 v_y_32) (* v_y_34 74395574751670436888576) |c_ULTIMATE.start_main_~_hj_j~0#1| v_z_30 (* v_y_28 4294967296) (* v_z_34 74395574734348867333889))) (<= 0 .cse1) (= (+ (mod (+ .cse2 (* v_z_30 4294967294) 2672409286) 4294967296) (* v_z_34 4294967295) (* v_y_34 4294967296)) 4294967296) (<= .cse1 4294967295)))) (<= v_z_30 4095) (<= 0 v_z_30)))) (<= v_z_34 4294967295) (<= 0 v_z_34))) (exists ((v_z_34 Int)) (and (exists ((v_z_30 Int)) (let ((.cse4 (mod (+ (* v_z_30 2) |c_ULTIMATE.start_main_~_hj_j~0#1|) 4294967296))) (and (exists ((v_y_34 Int) (v_y_28 Int) (v_y_32 Int)) (let ((.cse3 (+ (* v_y_32 17592186044416) (* v_z_34 74377416185475460239360) v_z_30 (* v_y_34 74377416202792801927168)))) (and (<= 0 .cse3) (= (+ (mod (+ .cse2 (* v_z_30 4294967294) 2672409286) 4294967296) (* v_z_34 4294967295) (* v_y_34 4294967296)) 4294967296) (<= .cse3 4294967295) (= (* .cse4 256) (+ (* 17596481011712 v_y_32) (* v_y_34 74395574751670436888576) 1099511627776 |c_ULTIMATE.start_main_~_hj_j~0#1| v_z_30 (* v_y_28 4294967296) (* v_z_34 74395574734348867333889)))))) (<= 4294967296 (+ .cse4 v_z_34)) (<= v_z_30 4095) (<= 0 v_z_30)))) (<= v_z_34 4294967295) (<= 0 v_z_34))))) is different from true [2024-11-13 16:11:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-13 16:11:47,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:11:47,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683393016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:47,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:11:47,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2024-11-13 16:11:47,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931216282] [2024-11-13 16:11:47,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:47,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:11:47,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:47,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:11:47,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=301, Unknown=2, NotChecked=34, Total=380 [2024-11-13 16:11:47,183 INFO L87 Difference]: Start difference. First operand 696 states and 979 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:11:51,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:11:51,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:51,621 INFO L93 Difference]: Finished difference Result 1337 states and 1897 transitions. [2024-11-13 16:11:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:11:51,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 125 [2024-11-13 16:11:51,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:11:51,626 INFO L225 Difference]: With dead ends: 1337 [2024-11-13 16:11:51,626 INFO L226 Difference]: Without dead ends: 714 [2024-11-13 16:11:51,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=43, Invalid=301, Unknown=2, NotChecked=34, Total=380 [2024-11-13 16:11:51,628 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 12 mSDsluCounter, 3292 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3821 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 572 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:11:51,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3821 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 590 Invalid, 0 Unknown, 572 Unchecked, 4.4s Time] [2024-11-13 16:11:51,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-13 16:11:51,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 706. [2024-11-13 16:11:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 678 states have (on average 1.3982300884955752) internal successors, (948), 695 states have internal predecessors, (948), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 16:11:51,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 991 transitions. [2024-11-13 16:11:51,657 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 991 transitions. Word has length 125 [2024-11-13 16:11:51,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:11:51,657 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 991 transitions. [2024-11-13 16:11:51,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:11:51,657 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 991 transitions. [2024-11-13 16:11:51,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 16:11:51,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:11:51,659 INFO L215 NwaCegarLoop]: trace histogram [19, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:51,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 16:11:51,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:51,862 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:11:51,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:51,863 INFO L85 PathProgramCache]: Analyzing trace with hash -916421954, now seen corresponding path program 1 times [2024-11-13 16:11:51,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:51,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639143493] [2024-11-13 16:11:51,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:51,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:52,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:11:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:53,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 16:11:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-13 16:11:53,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:53,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639143493] [2024-11-13 16:11:53,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639143493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:11:53,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177244479] [2024-11-13 16:11:53,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:53,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:53,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:53,272 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:11:53,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 16:11:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:54,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 16:11:54,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:55,409 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-13 16:11:55,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:11:55,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177244479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:55,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:11:55,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2024-11-13 16:11:55,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902239577] [2024-11-13 16:11:55,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:55,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:11:55,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:55,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:11:55,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-13 16:11:55,411 INFO L87 Difference]: Start difference. First operand 706 states and 991 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:11:56,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:56,401 INFO L93 Difference]: Finished difference Result 1375 states and 1949 transitions. [2024-11-13 16:11:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:11:56,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 125 [2024-11-13 16:11:56,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:11:56,406 INFO L225 Difference]: With dead ends: 1375 [2024-11-13 16:11:56,406 INFO L226 Difference]: Without dead ends: 738 [2024-11-13 16:11:56,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-13 16:11:56,409 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 19 mSDsluCounter, 3319 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:11:56,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3856 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:11:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-13 16:11:56,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 722. [2024-11-13 16:11:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 694 states have (on average 1.3948126801152738) internal successors, (968), 711 states have internal predecessors, (968), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 16:11:56,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1011 transitions. [2024-11-13 16:11:56,439 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1011 transitions. Word has length 125 [2024-11-13 16:11:56,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:11:56,440 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 1011 transitions. [2024-11-13 16:11:56,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:11:56,440 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1011 transitions. [2024-11-13 16:11:56,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 16:11:56,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:11:56,442 INFO L215 NwaCegarLoop]: trace histogram [19, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:56,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:56,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-13 16:11:56,642 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:11:56,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:56,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1230796107, now seen corresponding path program 1 times [2024-11-13 16:11:56,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:56,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157801496] [2024-11-13 16:11:56,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:56,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:57,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:11:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:57,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 16:11:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-13 16:11:57,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:57,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157801496] [2024-11-13 16:11:57,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157801496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:11:57,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411918937] [2024-11-13 16:11:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:57,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:57,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:57,854 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:11:57,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 16:11:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:59,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-13 16:11:59,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 107 proven. 28 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-13 16:11:59,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:12:16,626 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 130 refuted. 4 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-13 16:12:16,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411918937] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:12:16,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:12:16,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 29 [2024-11-13 16:12:16,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713847486] [2024-11-13 16:12:16,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:12:16,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-13 16:12:16,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:12:16,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-13 16:12:16,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=591, Unknown=4, NotChecked=0, Total=812 [2024-11-13 16:12:16,634 INFO L87 Difference]: Start difference. First operand 722 states and 1011 transitions. Second operand has 29 states, 29 states have (on average 4.586206896551724) internal successors, (133), 28 states have internal predecessors, (133), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:12:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:12:21,148 INFO L93 Difference]: Finished difference Result 1345 states and 1902 transitions. [2024-11-13 16:12:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 16:12:21,150 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.586206896551724) internal successors, (133), 28 states have internal predecessors, (133), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2024-11-13 16:12:21,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:12:21,154 INFO L225 Difference]: With dead ends: 1345 [2024-11-13 16:12:21,154 INFO L226 Difference]: Without dead ends: 735 [2024-11-13 16:12:21,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=619, Invalid=1447, Unknown=4, NotChecked=0, Total=2070 [2024-11-13 16:12:21,166 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 66 mSDsluCounter, 5174 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 5655 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:12:21,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 5655 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 16:12:21,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-13 16:12:21,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 731. [2024-11-13 16:12:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 703 states have (on average 1.3840682788051208) internal successors, (973), 720 states have internal predecessors, (973), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 16:12:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1016 transitions. [2024-11-13 16:12:21,216 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1016 transitions. Word has length 125 [2024-11-13 16:12:21,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:12:21,216 INFO L471 AbstractCegarLoop]: Abstraction has 731 states and 1016 transitions. [2024-11-13 16:12:21,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.586206896551724) internal successors, (133), 28 states have internal predecessors, (133), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:12:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1016 transitions. [2024-11-13 16:12:21,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 16:12:21,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:12:21,218 INFO L215 NwaCegarLoop]: trace histogram [28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:12:21,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-13 16:12:21,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:12:21,419 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:12:21,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:12:21,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1808874925, now seen corresponding path program 2 times [2024-11-13 16:12:21,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:12:21,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750553945] [2024-11-13 16:12:21,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:12:21,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:12:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:23,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:12:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:24,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 16:12:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 359 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-13 16:12:24,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:12:24,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750553945] [2024-11-13 16:12:24,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750553945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:12:24,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693361509] [2024-11-13 16:12:24,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:12:24,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:12:24,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:12:24,310 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:12:24,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172f0bf5-2bd3-4b1a-b982-3d8ff1a7e9fe/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 16:12:29,389 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:12:29,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:12:29,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 16:12:29,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:12:46,345 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:12:54,373 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:06,438 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:14,465 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:30,389 WARN L286 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:42,429 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:57,711 WARN L286 SmtUtils]: Spent 11.06s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:09,735 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:15,257 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:27,293 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:39,328 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:55,922 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:59,943 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (* |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967294)) (.cse4 (* 2863311531 |c_ULTIMATE.start_main_~_hj_j~0#1|))) (or (exists ((v_z_51 Int)) (let ((.cse2 (+ (mod (+ 1425664593 (* v_z_51 2868902570) .cse4) 4294967296) v_z_51))) (and (<= v_z_51 4294967295) (exists ((v_y_49 Int) (v_y_51 Int)) (let ((.cse1 (* v_y_49 4294967296)) (.cse0 (* (mod (+ .cse3 4276993779 (* v_z_51 16773118)) 4294967296) 1431655765))) (and (<= .cse0 (+ .cse1 6148914689804861440)) (= (+ 6148914689805385728 (* v_z_51 68702703616) .cse1 (* v_y_51 17592186044416)) (+ .cse0 (div .cse2 8192))) (<= (+ .cse1 6148914689804857345) .cse0)))) (<= 4294967296 .cse2)))) (exists ((v_z_51 Int)) (let ((.cse7 (+ (mod (+ 1425664593 (* v_z_51 2868902570) .cse4) 4294967296) v_z_51))) (and (exists ((v_y_49 Int) (v_y_51 Int)) (let ((.cse6 (* v_y_49 4294967296)) (.cse5 (* (mod (+ .cse3 4276993779 (* v_z_51 16773118)) 4294967296) 1431655765))) (and (<= .cse5 (+ .cse6 6148914689804861440)) (= (+ (* v_z_51 68702703616) .cse6 (* v_y_51 17592186044416) 6148914689804861440) (+ .cse5 (div .cse7 8192))) (<= (+ .cse6 6148914689804857345) .cse5)))) (<= 0 v_z_51) (<= .cse7 4294967295)))))) is different from false [2024-11-13 16:15:03,958 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 (* |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967294)) (.cse4 (* 2863311531 |c_ULTIMATE.start_main_~_hj_j~0#1|))) (or (exists ((v_z_51 Int)) (let ((.cse2 (+ (mod (+ 1425664593 (* v_z_51 2868902570) .cse4) 4294967296) v_z_51))) (and (<= v_z_51 4294967295) (exists ((v_y_49 Int) (v_y_51 Int)) (let ((.cse1 (* v_y_49 4294967296)) (.cse0 (* (mod (+ .cse3 4276993779 (* v_z_51 16773118)) 4294967296) 1431655765))) (and (<= .cse0 (+ .cse1 6148914689804861440)) (= (+ 6148914689805385728 (* v_z_51 68702703616) .cse1 (* v_y_51 17592186044416)) (+ .cse0 (div .cse2 8192))) (<= (+ .cse1 6148914689804857345) .cse0)))) (<= 4294967296 .cse2)))) (exists ((v_z_51 Int)) (let ((.cse7 (+ (mod (+ 1425664593 (* v_z_51 2868902570) .cse4) 4294967296) v_z_51))) (and (exists ((v_y_49 Int) (v_y_51 Int)) (let ((.cse6 (* v_y_49 4294967296)) (.cse5 (* (mod (+ .cse3 4276993779 (* v_z_51 16773118)) 4294967296) 1431655765))) (and (<= .cse5 (+ .cse6 6148914689804861440)) (= (+ (* v_z_51 68702703616) .cse6 (* v_y_51 17592186044416) 6148914689804861440) (+ .cse5 (div .cse7 8192))) (<= (+ .cse6 6148914689804857345) .cse5)))) (<= 0 v_z_51) (<= .cse7 4294967295)))))) is different from true [2024-11-13 16:15:24,053 WARN L286 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:15:32,068 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:15:44,087 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:00,124 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:12,156 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:28,176 WARN L286 SmtUtils]: Spent 16.02s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:32,189 WARN L851 $PredicateComparison]: unable to prove that (or (exists ((v_z_51 Int)) (let ((.cse0 (+ (mod (+ 1425664593 (* v_z_51 2868902570)) 4294967296) v_z_51))) (and (<= 0 v_z_51) (<= .cse0 4294967295) (exists ((v_y_49 Int) (v_y_51 Int)) (let ((.cse2 (* (mod (+ 4276993779 (* v_z_51 16773118)) 4294967296) 1431655765)) (.cse1 (* v_y_49 4294967296))) (and (<= (+ .cse1 6148914689804857345) .cse2) (= (+ (* v_z_51 68702703616) .cse1 (* v_y_51 17592186044416) 6148914689804861440) (+ (div .cse0 8192) .cse2)) (<= .cse2 (+ .cse1 6148914689804861440)))))))) (exists ((v_z_51 Int)) (let ((.cse5 (+ (mod (+ 1425664593 (* v_z_51 2868902570)) 4294967296) v_z_51))) (and (exists ((v_y_49 Int) (v_y_51 Int)) (let ((.cse4 (* (mod (+ 4276993779 (* v_z_51 16773118)) 4294967296) 1431655765)) (.cse3 (* v_y_49 4294967296))) (and (<= (+ .cse3 6148914689804857345) .cse4) (<= .cse4 (+ .cse3 6148914689804861440)) (= (+ (div .cse5 8192) .cse4) (+ 6148914689805385728 (* v_z_51 68702703616) .cse3 (* v_y_51 17592186044416)))))) (<= v_z_51 4294967295) (<= 4294967296 .cse5))))) is different from false [2024-11-13 16:16:36,194 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((v_z_51 Int)) (let ((.cse0 (+ (mod (+ 1425664593 (* v_z_51 2868902570)) 4294967296) v_z_51))) (and (<= 0 v_z_51) (<= .cse0 4294967295) (exists ((v_y_49 Int) (v_y_51 Int)) (let ((.cse2 (* (mod (+ 4276993779 (* v_z_51 16773118)) 4294967296) 1431655765)) (.cse1 (* v_y_49 4294967296))) (and (<= (+ .cse1 6148914689804857345) .cse2) (= (+ (* v_z_51 68702703616) .cse1 (* v_y_51 17592186044416) 6148914689804861440) (+ (div .cse0 8192) .cse2)) (<= .cse2 (+ .cse1 6148914689804861440)))))))) (exists ((v_z_51 Int)) (let ((.cse5 (+ (mod (+ 1425664593 (* v_z_51 2868902570)) 4294967296) v_z_51))) (and (exists ((v_y_49 Int) (v_y_51 Int)) (let ((.cse4 (* (mod (+ 4276993779 (* v_z_51 16773118)) 4294967296) 1431655765)) (.cse3 (* v_y_49 4294967296))) (and (<= (+ .cse3 6148914689804857345) .cse4) (<= .cse4 (+ .cse3 6148914689804861440)) (= (+ (div .cse5 8192) .cse4) (+ 6148914689805385728 (* v_z_51 68702703616) .cse3 (* v_y_51 17592186044416)))))) (<= v_z_51 4294967295) (<= 4294967296 .cse5))))) is different from true [2024-11-13 16:16:52,267 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:00,850 WARN L286 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:12,885 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:28,921 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:40,947 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:56,970 WARN L286 SmtUtils]: Spent 16.02s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:13,029 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:18,254 WARN L286 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:30,276 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:46,306 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:58,339 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:19:14,361 WARN L286 SmtUtils]: Spent 16.02s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:19:30,431 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:19:47,170 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:20:03,212 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:20:15,265 WARN L286 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:20:31,293 WARN L286 SmtUtils]: Spent 16.03s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:20:47,376 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)