./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.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_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1 --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 13d5722f7df4a2c5167ed4563bf982d5909b4aa38877cadc21e13f19e9d80478 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:54:30,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:54:30,194 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:54:30,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:54:30,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:54:30,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:54:30,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:54:30,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:54:30,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:54:30,219 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:54:30,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:54:30,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:54:30,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:54:30,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:54:30,219 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:54:30,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:54:30,220 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:54:30,221 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:54:30,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:54:30,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:54:30,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:54:30,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:54:30,222 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_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1 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 -> 13d5722f7df4a2c5167ed4563bf982d5909b4aa38877cadc21e13f19e9d80478 [2024-12-02 05:54:30,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:54:30,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:54:30,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:54:30,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:54:30,456 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:54:30,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c [2024-12-02 05:54:33,048 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/data/611e12dda/b31136876d554959826a43f261bf6c8f/FLAGd5b3bf8db [2024-12-02 05:54:33,311 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:54:33,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c [2024-12-02 05:54:33,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/data/611e12dda/b31136876d554959826a43f261bf6c8f/FLAGd5b3bf8db [2024-12-02 05:54:33,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/data/611e12dda/b31136876d554959826a43f261bf6c8f [2024-12-02 05:54:33,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:54:33,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:54:33,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:54:33,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:54:33,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:54:33,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:54:33" (1/1) ... [2024-12-02 05:54:33,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343ec61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:33, skipping insertion in model container [2024-12-02 05:54:33,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:54:33" (1/1) ... [2024-12-02 05:54:33,657 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:54:34,003 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_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c[43733,43746] [2024-12-02 05:54:34,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:54:34,036 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:54:34,202 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_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c[43733,43746] [2024-12-02 05:54:34,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:54:34,245 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:54:34,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34 WrapperNode [2024-12-02 05:54:34,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:54:34,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:54:34,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:54:34,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:54:34,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:34,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:34,803 INFO L138 Inliner]: procedures = 13, calls = 766, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11155 [2024-12-02 05:54:34,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:54:34,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:54:34,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:54:34,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:54:34,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:34,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:34,912 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,044 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]. [2024-12-02 05:54:35,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,364 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:54:35,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:54:35,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:54:35,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:54:35,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (1/1) ... [2024-12-02 05:54:35,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:54:35,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:54:35,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:54:35,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:54:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:54:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:54:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:54:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:54:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-12-02 05:54:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-12-02 05:54:35,957 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:54:35,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:54:47,204 INFO L? ?]: Removed 2333 outVars from TransFormulas that were not future-live. [2024-12-02 05:54:47,204 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:54:47,279 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:54:47,279 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 05:54:47,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:54:47 BoogieIcfgContainer [2024-12-02 05:54:47,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:54:47,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:54:47,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:54:47,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:54:47,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:54:33" (1/3) ... [2024-12-02 05:54:47,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751ffd33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:54:47, skipping insertion in model container [2024-12-02 05:54:47,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:54:34" (2/3) ... [2024-12-02 05:54:47,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751ffd33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:54:47, skipping insertion in model container [2024-12-02 05:54:47,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:54:47" (3/3) ... [2024-12-02 05:54:47,291 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-100-6-0-sat-1.c [2024-12-02 05:54:47,307 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:54:47,308 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-100-6-0-sat-1.c that has 2 procedures, 5134 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 05:54:47,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:54:47,509 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;@42924e8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:54:47,509 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:54:47,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 5134 states, 4372 states have (on average 1.565416285452882) internal successors, (6844), 4373 states have internal predecessors, (6844), 759 states have call successors, (759), 1 states have call predecessors, (759), 1 states have return successors, (759), 759 states have call predecessors, (759), 759 states have call successors, (759) [2024-12-02 05:54:47,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5693 [2024-12-02 05:54:47,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:54:47,973 INFO L218 NwaCegarLoop]: trace histogram [759, 759, 759, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-12-02 05:54:47,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:54:47,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:54:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1806316416, now seen corresponding path program 1 times [2024-12-02 05:54:47,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:54:47,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75183893] [2024-12-02 05:54:47,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:54:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:54:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:54:54,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 0 proven. 1516 refuted. 0 times theorem prover too weak. 1149128 trivial. 0 not checked. [2024-12-02 05:54:54,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:54:54,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75183893] [2024-12-02 05:54:54,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75183893] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:54:54,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369793327] [2024-12-02 05:54:54,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:54:54,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:54:54,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:54:54,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:54:54,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 05:54:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:54:56,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 11321 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 05:54:56,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:54:56,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1516 proven. 0 refuted. 0 times theorem prover too weak. 1149128 trivial. 0 not checked. [2024-12-02 05:54:56,940 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:54:56,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369793327] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:54:56,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:54:56,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 05:54:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062879493] [2024-12-02 05:54:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:54:56,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 05:54:56,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:54:56,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 05:54:56,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:54:56,979 INFO L87 Difference]: Start difference. First operand has 5134 states, 4372 states have (on average 1.565416285452882) internal successors, (6844), 4373 states have internal predecessors, (6844), 759 states have call successors, (759), 1 states have call predecessors, (759), 1 states have return successors, (759), 759 states have call predecessors, (759), 759 states have call successors, (759) Second operand has 2 states, 2 states have (on average 951.0) internal successors, (1902), 2 states have internal predecessors, (1902), 2 states have call successors, (759), 2 states have call predecessors, (759), 1 states have return successors, (759), 1 states have call predecessors, (759), 2 states have call successors, (759) [2024-12-02 05:54:57,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:54:57,183 INFO L93 Difference]: Finished difference Result 10262 states and 17477 transitions. [2024-12-02 05:54:57,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 05:54:57,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 951.0) internal successors, (1902), 2 states have internal predecessors, (1902), 2 states have call successors, (759), 2 states have call predecessors, (759), 1 states have return successors, (759), 1 states have call predecessors, (759), 2 states have call successors, (759) Word has length 5692 [2024-12-02 05:54:57,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:54:57,214 INFO L225 Difference]: With dead ends: 10262 [2024-12-02 05:54:57,214 INFO L226 Difference]: Without dead ends: 5131 [2024-12-02 05:54:57,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5693 GetRequests, 5693 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:54:57,231 INFO L435 NwaCegarLoop]: 8358 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, 8358 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 [2024-12-02 05:54:57,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8358 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:54:57,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2024-12-02 05:54:57,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2024-12-02 05:54:57,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4370 states have (on average 1.565217391304348) internal successors, (6840), 4370 states have internal predecessors, (6840), 759 states have call successors, (759), 1 states have call predecessors, (759), 1 states have return successors, (759), 759 states have call predecessors, (759), 759 states have call successors, (759) [2024-12-02 05:54:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 8358 transitions. [2024-12-02 05:54:57,799 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 8358 transitions. Word has length 5692 [2024-12-02 05:54:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:54:57,801 INFO L471 AbstractCegarLoop]: Abstraction has 5131 states and 8358 transitions. [2024-12-02 05:54:57,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 951.0) internal successors, (1902), 2 states have internal predecessors, (1902), 2 states have call successors, (759), 2 states have call predecessors, (759), 1 states have return successors, (759), 1 states have call predecessors, (759), 2 states have call successors, (759) [2024-12-02 05:54:57,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 8358 transitions. [2024-12-02 05:54:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5693 [2024-12-02 05:54:58,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:54:58,138 INFO L218 NwaCegarLoop]: trace histogram [759, 759, 759, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-12-02 05:54:58,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 05:54:58,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 05:54:58,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:54:58,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:54:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2035606162, now seen corresponding path program 1 times [2024-12-02 05:54:58,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:54:58,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911846077] [2024-12-02 05:54:58,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:54:58,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:48,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 2268 proven. 24624 refuted. 0 times theorem prover too weak. 1123752 trivial. 0 not checked. [2024-12-02 05:56:48,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:48,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911846077] [2024-12-02 05:56:48,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911846077] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:48,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827902609] [2024-12-02 05:56:48,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:48,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:48,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:48,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:48,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 05:56:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:50,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 11321 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 05:56:50,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 71820 proven. 16188 refuted. 0 times theorem prover too weak. 1062636 trivial. 0 not checked. [2024-12-02 05:57:30,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:58:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1260 proven. 16764 refuted. 0 times theorem prover too weak. 1132620 trivial. 0 not checked. [2024-12-02 05:58:05,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827902609] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:58:05,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:58:05,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 16, 16] total 45 [2024-12-02 05:58:05,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479872583] [2024-12-02 05:58:05,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:58:05,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-12-02 05:58:05,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:05,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-12-02 05:58:05,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1728, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 05:58:05,135 INFO L87 Difference]: Start difference. First operand 5131 states and 8358 transitions. Second operand has 45 states, 29 states have (on average 171.0344827586207) internal successors, (4960), 31 states have internal predecessors, (4960), 40 states have call successors, (2060), 2 states have call predecessors, (2060), 3 states have return successors, (2063), 38 states have call predecessors, (2063), 40 states have call successors, (2063) [2024-12-02 06:00:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:43,568 INFO L93 Difference]: Finished difference Result 182795 states and 297831 transitions. [2024-12-02 06:00:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-12-02 06:00:43,571 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 29 states have (on average 171.0344827586207) internal successors, (4960), 31 states have internal predecessors, (4960), 40 states have call successors, (2060), 2 states have call predecessors, (2060), 3 states have return successors, (2063), 38 states have call predecessors, (2063), 40 states have call successors, (2063) Word has length 5692 [2024-12-02 06:00:43,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:43,987 INFO L225 Difference]: With dead ends: 182795 [2024-12-02 06:00:43,987 INFO L226 Difference]: Without dead ends: 178428 [2024-12-02 06:00:44,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11531 GetRequests, 11391 SyntacticMatches, 10 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4417 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=5015, Invalid=12277, Unknown=0, NotChecked=0, Total=17292 [2024-12-02 06:00:44,030 INFO L435 NwaCegarLoop]: 42853 mSDtfsCounter, 672684 mSDsluCounter, 324450 mSDsCounter, 0 mSdLazyCounter, 67486 mSolverCounterSat, 53923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672702 SdHoareTripleChecker+Valid, 367303 SdHoareTripleChecker+Invalid, 121409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.2s SdHoareTripleChecker+Time, 53923 IncrementalHoareTripleChecker+Valid, 67486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:44,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [672702 Valid, 367303 Invalid, 121409 Unknown, 0 Unchecked, 1.2s Time], IncrementalHoareTripleChecker [53923 Valid, 67486 Invalid, 0 Unknown, 0 Unchecked, 99.6s Time] [2024-12-02 06:00:44,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178428 states. [2024-12-02 06:01:01,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178428 to 112817. [2024-12-02 06:01:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112817 states, 98653 states have (on average 1.5728462388371363) internal successors, (155166), 98653 states have internal predecessors, (155166), 14162 states have call successors, (14162), 1 states have call predecessors, (14162), 1 states have return successors, (14162), 14162 states have call predecessors, (14162), 14162 states have call successors, (14162) [2024-12-02 06:01:01,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112817 states to 112817 states and 183490 transitions. [2024-12-02 06:01:01,690 INFO L78 Accepts]: Start accepts. Automaton has 112817 states and 183490 transitions. Word has length 5692 [2024-12-02 06:01:01,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:01,699 INFO L471 AbstractCegarLoop]: Abstraction has 112817 states and 183490 transitions. [2024-12-02 06:01:01,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 29 states have (on average 171.0344827586207) internal successors, (4960), 31 states have internal predecessors, (4960), 40 states have call successors, (2060), 2 states have call predecessors, (2060), 3 states have return successors, (2063), 38 states have call predecessors, (2063), 40 states have call successors, (2063) [2024-12-02 06:01:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 112817 states and 183490 transitions. [2024-12-02 06:01:02,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5695 [2024-12-02 06:01:02,508 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:02,510 INFO L218 NwaCegarLoop]: trace histogram [759, 759, 759, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-12-02 06:01:02,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 06:01:02,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-12-02 06:01:02,711 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:02,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:02,715 INFO L85 PathProgramCache]: Analyzing trace with hash 629624268, now seen corresponding path program 1 times [2024-12-02 06:01:02,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:02,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152647016] [2024-12-02 06:01:02,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:02,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 420 proven. 4122 refuted. 0 times theorem prover too weak. 1146102 trivial. 0 not checked. [2024-12-02 06:01:27,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:27,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152647016] [2024-12-02 06:01:27,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152647016] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:01:27,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826119706] [2024-12-02 06:01:27,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:27,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:01:27,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:01:27,438 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:01:27,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1721b38c-2d4b-4f93-a646-ad84bd8f62ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:01:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:28,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 11327 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 06:01:29,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:01:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 71856 proven. 11826 refuted. 0 times theorem prover too weak. 1066962 trivial. 0 not checked. [2024-12-02 06:01:59,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:02:15,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1296 proven. 12258 refuted. 0 times theorem prover too weak. 1137090 trivial. 0 not checked. [2024-12-02 06:02:15,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826119706] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:02:15,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:02:15,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 15] total 28 [2024-12-02 06:02:15,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85670561] [2024-12-02 06:02:15,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:02:15,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 06:02:15,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:02:15,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 06:02:15,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2024-12-02 06:02:15,476 INFO L87 Difference]: Start difference. First operand 112817 states and 183490 transitions. Second operand has 28 states, 22 states have (on average 232.4090909090909) internal successors, (5113), 22 states have internal predecessors, (5113), 25 states have call successors, (2062), 2 states have call predecessors, (2062), 3 states have return successors, (2064), 25 states have call predecessors, (2064), 25 states have call successors, (2064) [2024-12-02 06:05:05,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:05,950 INFO L93 Difference]: Finished difference Result 2893676 states and 4711247 transitions. [2024-12-02 06:05:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-12-02 06:05:05,952 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 22 states have (on average 232.4090909090909) internal successors, (5113), 22 states have internal predecessors, (5113), 25 states have call successors, (2062), 2 states have call predecessors, (2062), 3 states have return successors, (2064), 25 states have call predecessors, (2064), 25 states have call successors, (2064) Word has length 5694 [2024-12-02 06:05:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:11,252 INFO L225 Difference]: With dead ends: 2893676 [2024-12-02 06:05:11,252 INFO L226 Difference]: Without dead ends: 2541205 [2024-12-02 06:05:12,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11446 GetRequests, 11370 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1136 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1639, Invalid=3911, Unknown=0, NotChecked=0, Total=5550 [2024-12-02 06:05:12,339 INFO L435 NwaCegarLoop]: 34024 mSDtfsCounter, 276601 mSDsluCounter, 279803 mSDsCounter, 0 mSdLazyCounter, 46906 mSolverCounterSat, 22367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276611 SdHoareTripleChecker+Valid, 313827 SdHoareTripleChecker+Invalid, 69273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 22367 IncrementalHoareTripleChecker+Valid, 46906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:12,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276611 Valid, 313827 Invalid, 69273 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [22367 Valid, 46906 Invalid, 0 Unknown, 0 Unchecked, 43.8s Time] [2024-12-02 06:05:13,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541205 states.