./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-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_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/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_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/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_ffd01909-f962-444c-a5d7-c3e482f251d1/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 7ba538f834e25276dcefc4c11b4f92efc495687e367eb839510e9e1800541555 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:13:05,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:13:05,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:13:05,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:13:05,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:13:05,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:13:05,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:13:05,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:13:05,398 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:13:05,398 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:13:05,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:13:05,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:13:05,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:13:05,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:13:05,398 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:13:05,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:13:05,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:13:05,400 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:13:05,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:13:05,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:13:05,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:13:05,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:13:05,401 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_ffd01909-f962-444c-a5d7-c3e482f251d1/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 -> 7ba538f834e25276dcefc4c11b4f92efc495687e367eb839510e9e1800541555 [2024-12-02 15:13:05,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:13:05,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:13:05,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:13:05,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:13:05,686 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:13:05,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c [2024-12-02 15:13:08,375 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/data/8d7611739/d65e46e4511e4b7f922271fd21ab6885/FLAG2bb6b0262 [2024-12-02 15:13:08,633 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:13:08,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c [2024-12-02 15:13:08,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/data/8d7611739/d65e46e4511e4b7f922271fd21ab6885/FLAG2bb6b0262 [2024-12-02 15:13:08,661 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/data/8d7611739/d65e46e4511e4b7f922271fd21ab6885 [2024-12-02 15:13:08,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:13:08,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:13:08,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:13:08,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:13:08,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:13:08,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:13:08" (1/1) ... [2024-12-02 15:13:08,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ffc478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:08, skipping insertion in model container [2024-12-02 15:13:08,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:13:08" (1/1) ... [2024-12-02 15:13:08,698 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:13:09,086 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_ffd01909-f962-444c-a5d7-c3e482f251d1/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c[42811,42824] [2024-12-02 15:13:09,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:13:09,121 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:13:09,249 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_ffd01909-f962-444c-a5d7-c3e482f251d1/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c[42811,42824] [2024-12-02 15:13:09,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:13:09,274 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:13:09,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09 WrapperNode [2024-12-02 15:13:09,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:13:09,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:13:09,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:13:09,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:13:09,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:09,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:09,692 INFO L138 Inliner]: procedures = 13, calls = 795, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8260 [2024-12-02 15:13:09,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:13:09,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:13:09,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:13:09,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:13:09,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:09,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:09,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:09,896 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 15:13:09,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:09,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:09,989 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:10,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:10,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:10,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:10,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:10,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:13:10,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:13:10,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:13:10,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:13:10,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (1/1) ... [2024-12-02 15:13:10,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:13:10,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:13:10,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:13:10,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:13:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-12-02 15:13:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-12-02 15:13:10,454 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:13:10,456 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:13:24,459 INFO L? ?]: Removed 1862 outVars from TransFormulas that were not future-live. [2024-12-02 15:13:24,459 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:13:24,515 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:13:24,515 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 15:13:24,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:13:24 BoogieIcfgContainer [2024-12-02 15:13:24,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:13:24,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:13:24,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:13:24,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:13:24,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:13:08" (1/3) ... [2024-12-02 15:13:24,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b914b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:13:24, skipping insertion in model container [2024-12-02 15:13:24,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:13:09" (2/3) ... [2024-12-02 15:13:24,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b914b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:13:24, skipping insertion in model container [2024-12-02 15:13:24,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:13:24" (3/3) ... [2024-12-02 15:13:24,525 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-2-0-unsat-3.c [2024-12-02 15:13:24,539 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:13:24,541 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-2-0-unsat-3.c that has 2 procedures, 3808 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 15:13:24,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:13:24,666 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;@29c14818, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:13:24,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:13:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 3808 states, 3017 states have (on average 1.5356314219423268) internal successors, (4633), 3018 states have internal predecessors, (4633), 788 states have call successors, (788), 1 states have call predecessors, (788), 1 states have return successors, (788), 788 states have call predecessors, (788), 788 states have call successors, (788) [2024-12-02 15:13:24,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5339 [2024-12-02 15:13:24,893 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:24,896 INFO L218 NwaCegarLoop]: trace histogram [788, 788, 788, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-12-02 15:13:24,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:24,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1259469085, now seen corresponding path program 1 times [2024-12-02 15:13:24,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:13:24,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679743253] [2024-12-02 15:13:24,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:24,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:13:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 2844 proven. 15876 refuted. 0 times theorem prover too weak. 1221592 trivial. 0 not checked. [2024-12-02 15:14:32,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:14:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679743253] [2024-12-02 15:14:32,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679743253] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:14:32,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446914822] [2024-12-02 15:14:32,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:32,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:14:32,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:14:32,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:14:32,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:14:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:34,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 10327 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-12-02 15:14:34,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:15:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 286020 proven. 22092 refuted. 0 times theorem prover too weak. 932200 trivial. 0 not checked. [2024-12-02 15:15:19,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:16:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 6132 proven. 26376 refuted. 0 times theorem prover too weak. 1207804 trivial. 0 not checked. [2024-12-02 15:16:15,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446914822] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:16:15,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:16:15,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25, 25] total 59 [2024-12-02 15:16:15,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790174808] [2024-12-02 15:16:15,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:16:15,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-12-02 15:16:15,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:16:15,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-12-02 15:16:15,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=2933, Unknown=0, NotChecked=0, Total=3422 [2024-12-02 15:16:15,394 INFO L87 Difference]: Start difference. First operand has 3808 states, 3017 states have (on average 1.5356314219423268) internal successors, (4633), 3018 states have internal predecessors, (4633), 788 states have call successors, (788), 1 states have call predecessors, (788), 1 states have return successors, (788), 788 states have call predecessors, (788), 788 states have call successors, (788) Second operand has 59 states, 40 states have (on average 86.95) internal successors, (3478), 42 states have internal predecessors, (3478), 53 states have call successors, (2112), 2 states have call predecessors, (2112), 3 states have return successors, (2114), 51 states have call predecessors, (2114), 53 states have call successors, (2114) [2024-12-02 15:18:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:18:56,774 INFO L93 Difference]: Finished difference Result 111154 states and 194098 transitions. [2024-12-02 15:18:56,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2024-12-02 15:18:56,785 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 40 states have (on average 86.95) internal successors, (3478), 42 states have internal predecessors, (3478), 53 states have call successors, (2112), 2 states have call predecessors, (2112), 3 states have return successors, (2114), 51 states have call predecessors, (2114), 53 states have call successors, (2114) Word has length 5338 [2024-12-02 15:18:56,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:18:57,260 INFO L225 Difference]: With dead ends: 111154 [2024-12-02 15:18:57,261 INFO L226 Difference]: Without dead ends: 107349 [2024-12-02 15:18:57,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10904 GetRequests, 10650 SyntacticMatches, 4 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18194 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=17716, Invalid=45536, Unknown=0, NotChecked=0, Total=63252 [2024-12-02 15:18:57,385 INFO L435 NwaCegarLoop]: 24442 mSDtfsCounter, 387261 mSDsluCounter, 263969 mSDsCounter, 0 mSdLazyCounter, 39802 mSolverCounterSat, 30983 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387310 SdHoareTripleChecker+Valid, 288411 SdHoareTripleChecker+Invalid, 70785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.0s SdHoareTripleChecker+Time, 30983 IncrementalHoareTripleChecker+Valid, 39802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:18:57,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387310 Valid, 288411 Invalid, 70785 Unknown, 0 Unchecked, 1.0s Time], IncrementalHoareTripleChecker [30983 Valid, 39802 Invalid, 0 Unknown, 0 Unchecked, 67.2s Time] [2024-12-02 15:18:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107349 states. [2024-12-02 15:19:07,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107349 to 19395. [2024-12-02 15:19:07,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19395 states, 16737 states have (on average 1.5685009260918923) internal successors, (26252), 16737 states have internal predecessors, (26252), 2656 states have call successors, (2656), 1 states have call predecessors, (2656), 1 states have return successors, (2656), 2656 states have call predecessors, (2656), 2656 states have call successors, (2656) [2024-12-02 15:19:07,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19395 states to 19395 states and 31564 transitions. [2024-12-02 15:19:07,980 INFO L78 Accepts]: Start accepts. Automaton has 19395 states and 31564 transitions. Word has length 5338 [2024-12-02 15:19:07,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:19:07,988 INFO L471 AbstractCegarLoop]: Abstraction has 19395 states and 31564 transitions. [2024-12-02 15:19:07,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 40 states have (on average 86.95) internal successors, (3478), 42 states have internal predecessors, (3478), 53 states have call successors, (2112), 2 states have call predecessors, (2112), 3 states have return successors, (2114), 51 states have call predecessors, (2114), 53 states have call successors, (2114) [2024-12-02 15:19:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 19395 states and 31564 transitions. [2024-12-02 15:19:08,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5341 [2024-12-02 15:19:08,269 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:19:08,272 INFO L218 NwaCegarLoop]: trace histogram [788, 788, 788, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-12-02 15:19:08,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:19:08,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 15:19:08,474 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:19:08,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:19:08,479 INFO L85 PathProgramCache]: Analyzing trace with hash 382829519, now seen corresponding path program 1 times [2024-12-02 15:19:08,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:19:08,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273544689] [2024-12-02 15:19:08,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:19:08,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:19:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:21:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 9528 proven. 36552 refuted. 0 times theorem prover too weak. 1194232 trivial. 0 not checked. [2024-12-02 15:21:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:21:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273544689] [2024-12-02 15:21:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273544689] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:21:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161520066] [2024-12-02 15:21:57,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:21:57,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:21:57,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:21:57,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:21:57,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffd01909-f962-444c-a5d7-c3e482f251d1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:21:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:21:59,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 10333 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 15:21:59,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:22:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 61300 proven. 15408 refuted. 0 times theorem prover too weak. 1163604 trivial. 0 not checked. [2024-12-02 15:22:43,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:20,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 2856 proven. 15864 refuted. 0 times theorem prover too weak. 1221592 trivial. 0 not checked. [2024-12-02 15:23:20,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161520066] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:20,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:20,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 17, 17] total 66 [2024-12-02 15:23:20,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085451265] [2024-12-02 15:23:20,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:20,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-12-02 15:23:20,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:20,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-12-02 15:23:20,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=3910, Unknown=0, NotChecked=0, Total=4290 [2024-12-02 15:23:20,783 INFO L87 Difference]: Start difference. First operand 19395 states and 31564 transitions. Second operand has 66 states, 44 states have (on average 88.20454545454545) internal successors, (3881), 49 states have internal predecessors, (3881), 61 states have call successors, (2176), 2 states have call predecessors, (2176), 3 states have return successors, (2178), 56 states have call predecessors, (2178), 61 states have call successors, (2178)