./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB --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 420a35b824344c03055704de42fe30d8dfe799a0cce194134099fa9f94681924 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:14:35,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:14:35,695 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:14:35,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:14:35,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:14:35,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:14:35,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:14:35,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:14:35,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:14:35,733 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:14:35,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:14:35,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:14:35,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:14:35,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:14:35,734 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:14:35,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:14:35,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:14:35,735 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:14:35,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:14:35,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:14:35,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:14:35,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:14:35,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:14:35,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:14:35,736 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:14:35,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:14:35,737 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:14:35,737 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:14:35,737 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:14:35,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:14:35,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:14:35,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:14:35,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:14:35,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:14:35,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:14:35,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:14:35,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:14:35,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:14:35,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:14:35,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:14:35,739 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:14:35,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:14:35,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:14:35,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:14:35,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:14:35,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:14:35,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:14:35,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:14:35,741 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_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 420a35b824344c03055704de42fe30d8dfe799a0cce194134099fa9f94681924 [2024-11-27 20:14:36,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:14:36,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:14:36,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:14:36,147 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:14:36,147 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:14:36,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-3.c [2024-11-27 20:14:39,413 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/data/ab7fde9a5/44f67b645e504f9ba988fca485c93ff7/FLAGfd4b3741d [2024-11-27 20:14:39,864 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:14:39,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/sv-benchmarks/c/xcsp/aim-100-6-0-sat-3.c [2024-11-27 20:14:39,885 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/data/ab7fde9a5/44f67b645e504f9ba988fca485c93ff7/FLAGfd4b3741d [2024-11-27 20:14:39,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/data/ab7fde9a5/44f67b645e504f9ba988fca485c93ff7 [2024-11-27 20:14:39,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:14:39,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:14:39,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:14:39,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:14:39,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:14:39,923 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:14:39" (1/1) ... [2024-11-27 20:14:39,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2ec6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:39, skipping insertion in model container [2024-11-27 20:14:39,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:14:39" (1/1) ... [2024-11-27 20:14:39,978 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:14:40,603 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_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/sv-benchmarks/c/xcsp/aim-100-6-0-sat-3.c[43808,43821] [2024-11-27 20:14:40,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:14:40,672 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:14:40,941 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_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/sv-benchmarks/c/xcsp/aim-100-6-0-sat-3.c[43808,43821] [2024-11-27 20:14:40,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:14:40,992 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:14:40,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40 WrapperNode [2024-11-27 20:14:40,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:14:40,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:14:40,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:14:40,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:14:41,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:41,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:41,850 INFO L138 Inliner]: procedures = 13, calls = 768, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11173 [2024-11-27 20:14:41,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:14:41,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:14:41,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:14:41,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:14:41,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:41,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:41,969 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:42,217 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:14:42,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:42,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:42,789 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:42,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:42,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:42,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:42,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:43,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:14:43,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:14:43,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:14:43,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:14:43,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (1/1) ... [2024-11-27 20:14:43,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:14:43,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:43,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:14:43,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:14:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:14:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:14:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:14:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:14:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-27 20:14:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-27 20:14:43,713 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:14:43,716 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:15:00,667 INFO L? ?]: Removed 2333 outVars from TransFormulas that were not future-live. [2024-11-27 20:15:00,667 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:15:00,805 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:15:00,805 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:15:00,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:00 BoogieIcfgContainer [2024-11-27 20:15:00,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:15:00,812 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:15:00,812 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:15:00,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:15:00,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:14:39" (1/3) ... [2024-11-27 20:15:00,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e492e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:15:00, skipping insertion in model container [2024-11-27 20:15:00,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:40" (2/3) ... [2024-11-27 20:15:00,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e492e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:15:00, skipping insertion in model container [2024-11-27 20:15:00,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:00" (3/3) ... [2024-11-27 20:15:00,824 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-100-6-0-sat-3.c [2024-11-27 20:15:00,849 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:15:00,851 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-100-6-0-sat-3.c that has 2 procedures, 5144 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-27 20:15:01,103 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:15:01,123 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;@71d819c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:15:01,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:15:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 5144 states, 4380 states have (on average 1.565296803652968) internal successors, (6856), 4381 states have internal predecessors, (6856), 761 states have call successors, (761), 1 states have call predecessors, (761), 1 states have return successors, (761), 761 states have call predecessors, (761), 761 states have call successors, (761) [2024-11-27 20:15:01,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5707 [2024-11-27 20:15:01,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:01,539 INFO L218 NwaCegarLoop]: trace histogram [761, 761, 761, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:01,540 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:15:01,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:01,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1685166788, now seen corresponding path program 1 times [2024-11-27 20:15:01,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:01,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801123365] [2024-11-27 20:15:01,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:01,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1156720 backedges. 0 proven. 1520 refuted. 0 times theorem prover too weak. 1155200 trivial. 0 not checked. [2024-11-27 20:15:10,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:10,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801123365] [2024-11-27 20:15:10,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801123365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:10,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559259940] [2024-11-27 20:15:10,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:10,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:10,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:10,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:15:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:13,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 11347 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:15:13,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1156720 backedges. 1520 proven. 0 refuted. 0 times theorem prover too weak. 1155200 trivial. 0 not checked. [2024-11-27 20:15:14,390 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:15:14,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559259940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:14,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:15:14,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:15:14,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13454494] [2024-11-27 20:15:14,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:14,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:15:14,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:14,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:15:14,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:15:14,459 INFO L87 Difference]: Start difference. First operand has 5144 states, 4380 states have (on average 1.565296803652968) internal successors, (6856), 4381 states have internal predecessors, (6856), 761 states have call successors, (761), 1 states have call predecessors, (761), 1 states have return successors, (761), 761 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 2 states, 2 states have (on average 953.0) internal successors, (1906), 2 states have internal predecessors, (1906), 2 states have call successors, (761), 2 states have call predecessors, (761), 1 states have return successors, (761), 1 states have call predecessors, (761), 2 states have call successors, (761) [2024-11-27 20:15:14,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:14,901 INFO L93 Difference]: Finished difference Result 10282 states and 17511 transitions. [2024-11-27 20:15:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:15:14,908 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 953.0) internal successors, (1906), 2 states have internal predecessors, (1906), 2 states have call successors, (761), 2 states have call predecessors, (761), 1 states have return successors, (761), 1 states have call predecessors, (761), 2 states have call successors, (761) Word has length 5706 [2024-11-27 20:15:14,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:14,966 INFO L225 Difference]: With dead ends: 10282 [2024-11-27 20:15:14,966 INFO L226 Difference]: Without dead ends: 5141 [2024-11-27 20:15:14,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5707 GetRequests, 5707 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:15:14,990 INFO L435 NwaCegarLoop]: 8374 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, 8374 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:14,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:15:15,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states. [2024-11-27 20:15:15,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 5141. [2024-11-27 20:15:15,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 4378 states have (on average 1.56509821836455) internal successors, (6852), 4378 states have internal predecessors, (6852), 761 states have call successors, (761), 1 states have call predecessors, (761), 1 states have return successors, (761), 761 states have call predecessors, (761), 761 states have call successors, (761) [2024-11-27 20:15:15,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 8374 transitions. [2024-11-27 20:15:15,780 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 8374 transitions. Word has length 5706 [2024-11-27 20:15:15,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:15,782 INFO L471 AbstractCegarLoop]: Abstraction has 5141 states and 8374 transitions. [2024-11-27 20:15:15,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 953.0) internal successors, (1906), 2 states have internal predecessors, (1906), 2 states have call successors, (761), 2 states have call predecessors, (761), 1 states have return successors, (761), 1 states have call predecessors, (761), 2 states have call successors, (761) [2024-11-27 20:15:15,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 8374 transitions. [2024-11-27 20:15:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5707 [2024-11-27 20:15:16,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:16,219 INFO L218 NwaCegarLoop]: trace histogram [761, 761, 761, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:16,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:15:16,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:15:16,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:15:16,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:16,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1700925278, now seen corresponding path program 1 times [2024-11-27 20:15:16,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:16,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939503555] [2024-11-27 20:15:16,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:16,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1156720 backedges. 1080 proven. 21450 refuted. 0 times theorem prover too weak. 1134190 trivial. 0 not checked. [2024-11-27 20:17:12,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:12,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939503555] [2024-11-27 20:17:12,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939503555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:12,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042201219] [2024-11-27 20:17:12,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:12,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:12,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:12,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:12,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:17:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:15,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 11347 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 20:17:15,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1156720 backedges. 392400 proven. 9870 refuted. 0 times theorem prover too weak. 754450 trivial. 0 not checked. [2024-11-27 20:17:43,386 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:18:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1156720 backedges. 768 proven. 12822 refuted. 0 times theorem prover too weak. 1143130 trivial. 0 not checked. [2024-11-27 20:18:18,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042201219] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:18:18,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:18:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 13] total 36 [2024-11-27 20:18:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404213806] [2024-11-27 20:18:18,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:18:18,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-27 20:18:18,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:18,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-27 20:18:18,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:18:18,260 INFO L87 Difference]: Start difference. First operand 5141 states and 8374 transitions. Second operand has 36 states, 24 states have (on average 172.875) internal successors, (4149), 26 states have internal predecessors, (4149), 31 states have call successors, (1875), 2 states have call predecessors, (1875), 3 states have return successors, (1878), 29 states have call predecessors, (1878), 31 states have call successors, (1878) [2024-11-27 20:20:02,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:02,864 INFO L93 Difference]: Finished difference Result 80367 states and 130991 transitions. [2024-11-27 20:20:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-11-27 20:20:02,874 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 24 states have (on average 172.875) internal successors, (4149), 26 states have internal predecessors, (4149), 31 states have call successors, (1875), 2 states have call predecessors, (1875), 3 states have return successors, (1878), 29 states have call predecessors, (1878), 31 states have call successors, (1878) Word has length 5706 [2024-11-27 20:20:02,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:03,219 INFO L225 Difference]: With dead ends: 80367 [2024-11-27 20:20:03,219 INFO L226 Difference]: Without dead ends: 76001 [2024-11-27 20:20:03,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11520 GetRequests, 11419 SyntacticMatches, 9 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1993 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=2266, Invalid=6476, Unknown=0, NotChecked=0, Total=8742 [2024-11-27 20:20:03,263 INFO L435 NwaCegarLoop]: 27962 mSDtfsCounter, 349762 mSDsluCounter, 229411 mSDsCounter, 0 mSdLazyCounter, 46383 mSolverCounterSat, 28202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349764 SdHoareTripleChecker+Valid, 257373 SdHoareTripleChecker+Invalid, 74585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.1s SdHoareTripleChecker+Time, 28202 IncrementalHoareTripleChecker+Valid, 46383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:03,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349764 Valid, 257373 Invalid, 74585 Unknown, 0 Unchecked, 1.1s Time], IncrementalHoareTripleChecker [28202 Valid, 46383 Invalid, 0 Unknown, 0 Unchecked, 77.4s Time] [2024-11-27 20:20:03,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76001 states. [2024-11-27 20:20:14,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76001 to 66856. [2024-11-27 20:20:14,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66856 states, 58834 states have (on average 1.577710167590169) internal successors, (92823), 58834 states have internal predecessors, (92823), 8020 states have call successors, (8020), 1 states have call predecessors, (8020), 1 states have return successors, (8020), 8020 states have call predecessors, (8020), 8020 states have call successors, (8020) [2024-11-27 20:20:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66856 states to 66856 states and 108863 transitions. [2024-11-27 20:20:14,965 INFO L78 Accepts]: Start accepts. Automaton has 66856 states and 108863 transitions. Word has length 5706 [2024-11-27 20:20:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:14,988 INFO L471 AbstractCegarLoop]: Abstraction has 66856 states and 108863 transitions. [2024-11-27 20:20:14,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 24 states have (on average 172.875) internal successors, (4149), 26 states have internal predecessors, (4149), 31 states have call successors, (1875), 2 states have call predecessors, (1875), 3 states have return successors, (1878), 29 states have call predecessors, (1878), 31 states have call successors, (1878) [2024-11-27 20:20:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 66856 states and 108863 transitions. [2024-11-27 20:20:16,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5709 [2024-11-27 20:20:16,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:16,285 INFO L218 NwaCegarLoop]: trace histogram [761, 761, 761, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:16,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:20:16,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-27 20:20:16,488 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:16,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:16,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1115490948, now seen corresponding path program 1 times [2024-11-27 20:20:16,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:16,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647517378] [2024-11-27 20:20:16,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:16,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1156720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1156720 trivial. 0 not checked. [2024-11-27 20:20:39,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:39,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647517378] [2024-11-27 20:20:39,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647517378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:39,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:39,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:20:39,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156919738] [2024-11-27 20:20:39,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:39,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:20:39,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:39,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:20:39,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:20:39,110 INFO L87 Difference]: Start difference. First operand 66856 states and 108863 transitions. Second operand has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 3 states have call successors, (761), 1 states have call predecessors, (761), 1 states have return successors, (761), 3 states have call predecessors, (761), 3 states have call successors, (761) [2024-11-27 20:20:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:43,551 INFO L93 Difference]: Finished difference Result 119255 states and 194173 transitions. [2024-11-27 20:20:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:20:43,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 3 states have call successors, (761), 1 states have call predecessors, (761), 1 states have return successors, (761), 3 states have call predecessors, (761), 3 states have call successors, (761) Word has length 5708 [2024-11-27 20:20:43,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:43,824 INFO L225 Difference]: With dead ends: 119255 [2024-11-27 20:20:43,824 INFO L226 Difference]: Without dead ends: 67210 [2024-11-27 20:20:43,922 INFO L434 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 [2024-11-27 20:20:43,925 INFO L435 NwaCegarLoop]: 13524 mSDtfsCounter, 4304 mSDsluCounter, 8581 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 22105 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:43,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4304 Valid, 22105 Invalid, 249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:20:43,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67210 states. [2024-11-27 20:20:52,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67210 to 67210. [2024-11-27 20:20:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67210 states, 59142 states have (on average 1.5767982144668764) internal successors, (93255), 59142 states have internal predecessors, (93255), 8066 states have call successors, (8066), 1 states have call predecessors, (8066), 1 states have return successors, (8066), 8066 states have call predecessors, (8066), 8066 states have call successors, (8066) [2024-11-27 20:20:52,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67210 states to 67210 states and 109387 transitions. [2024-11-27 20:20:52,340 INFO L78 Accepts]: Start accepts. Automaton has 67210 states and 109387 transitions. Word has length 5708 [2024-11-27 20:20:52,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:52,348 INFO L471 AbstractCegarLoop]: Abstraction has 67210 states and 109387 transitions. [2024-11-27 20:20:52,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 3 states have call successors, (761), 1 states have call predecessors, (761), 1 states have return successors, (761), 3 states have call predecessors, (761), 3 states have call successors, (761) [2024-11-27 20:20:52,350 INFO L276 IsEmpty]: Start isEmpty. Operand 67210 states and 109387 transitions. [2024-11-27 20:20:53,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5709 [2024-11-27 20:20:53,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:53,064 INFO L218 NwaCegarLoop]: trace histogram [761, 761, 761, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:53,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:20:53,066 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:53,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:53,075 INFO L85 PathProgramCache]: Analyzing trace with hash 853978724, now seen corresponding path program 1 times [2024-11-27 20:20:53,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:53,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573759639] [2024-11-27 20:20:53,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:53,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:24,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1156720 backedges. 336 proven. 4218 refuted. 0 times theorem prover too weak. 1152166 trivial. 0 not checked. [2024-11-27 20:21:24,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:24,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573759639] [2024-11-27 20:21:24,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573759639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:21:24,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350761662] [2024-11-27 20:21:24,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:24,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:21:24,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:21:24,354 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:21:24,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c3daf-c9b5-437b-a7dd-3f1304c3fb8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:21:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:27,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 11353 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-27 20:21:27,208 INFO L279 TraceCheckSpWp]: Computing forward predicates...