./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 51c029c3e6da7a855218885875d9decd9132b07b4b4a0cd8ca561de10b840446 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:41:19,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:41:19,520 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:41:19,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:41:19,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:41:19,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:41:19,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:41:19,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:41:19,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:41:19,568 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:41:19,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:41:19,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:41:19,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:41:19,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:41:19,569 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:41:19,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:41:19,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:41:19,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:41:19,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:41:19,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:41:19,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:41:19,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:41:19,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:41:19,571 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:41:19,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:41:19,572 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:41:19,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:19,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:41:19,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:19,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:19,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:41:19,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:19,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:41:19,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:19,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:19,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:41:19,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:41:19,574 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:41:19,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:41:19,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:41:19,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:41:19,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:41:19,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:41:19,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:41:19,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:41:19,575 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_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c029c3e6da7a855218885875d9decd9132b07b4b4a0cd8ca561de10b840446 [2024-11-28 02:41:19,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:41:19,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:41:19,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:41:19,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:41:19,910 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:41:19,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c [2024-11-28 02:41:22,955 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data/c998ad42b/174a95a648604b66864150a893174e16/FLAG7f372e44e [2024-11-28 02:41:23,201 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:41:23,201 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c [2024-11-28 02:41:23,208 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data/c998ad42b/174a95a648604b66864150a893174e16/FLAG7f372e44e [2024-11-28 02:41:23,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data/c998ad42b/174a95a648604b66864150a893174e16 [2024-11-28 02:41:23,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:41:23,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:41:23,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:23,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:41:23,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:41:23,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328f048a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23, skipping insertion in model container [2024-11-28 02:41:23,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:41:23,425 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_b9d72149-ae8d-4390-9ab6-b13b38b1023a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c[1297,1310] [2024-11-28 02:41:23,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:23,499 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:41:23,513 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_b9d72149-ae8d-4390-9ab6-b13b38b1023a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c[1297,1310] [2024-11-28 02:41:23,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:23,564 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:41:23,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23 WrapperNode [2024-11-28 02:41:23,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:23,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:23,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:41:23,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:41:23,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,628 INFO L138 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 141 [2024-11-28 02:41:23,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:23,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:41:23,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:41:23,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:41:23,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,653 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,680 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-11-28 02:41:23,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,688 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:41:23,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:41:23,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:41:23,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:41:23,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:23,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:23,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:23,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:41:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:41:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:41:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:41:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:41:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:41:23,885 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:41:23,887 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:41:24,223 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-28 02:41:24,223 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:41:24,233 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:41:24,233 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:41:24,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:24 BoogieIcfgContainer [2024-11-28 02:41:24,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:41:24,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:41:24,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:41:24,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:41:24,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:41:23" (1/3) ... [2024-11-28 02:41:24,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcc15e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:24, skipping insertion in model container [2024-11-28 02:41:24,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (2/3) ... [2024-11-28 02:41:24,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcc15e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:24, skipping insertion in model container [2024-11-28 02:41:24,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:24" (3/3) ... [2024-11-28 02:41:24,244 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.seq.c [2024-11-28 02:41:24,261 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:41:24,262 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.seq.c that has 1 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:41:24,326 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:41:24,343 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;@54a0b259, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:41:24,343 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:41:24,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 37 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 02:41:24,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:24,357 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:24,358 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:24,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:24,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1332240297, now seen corresponding path program 1 times [2024-11-28 02:41:24,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:24,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637542493] [2024-11-28 02:41:24,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:24,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:25,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:25,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:25,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637542493] [2024-11-28 02:41:25,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637542493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:25,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:25,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:25,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92383359] [2024-11-28 02:41:25,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:25,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:25,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:25,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:25,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:25,068 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 37 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:25,104 INFO L93 Difference]: Finished difference Result 65 states and 93 transitions. [2024-11-28 02:41:25,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:25,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-28 02:41:25,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:25,115 INFO L225 Difference]: With dead ends: 65 [2024-11-28 02:41:25,117 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 02:41:25,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:25,126 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:25,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:41:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 02:41:25,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 02:41:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 36 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-11-28 02:41:25,155 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 15 [2024-11-28 02:41:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:25,156 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-28 02:41:25,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,156 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-11-28 02:41:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 02:41:25,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:25,157 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:25,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:41:25,157 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:25,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:25,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1648528535, now seen corresponding path program 1 times [2024-11-28 02:41:25,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:25,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192504861] [2024-11-28 02:41:25,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:25,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:25,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:25,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:25,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192504861] [2024-11-28 02:41:25,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192504861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:25,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:25,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:25,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674064114] [2024-11-28 02:41:25,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:25,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:25,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:25,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:25,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:25,378 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:25,424 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2024-11-28 02:41:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:25,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 02:41:25,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:25,427 INFO L225 Difference]: With dead ends: 66 [2024-11-28 02:41:25,427 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 02:41:25,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:25,428 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:25,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:41:25,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 02:41:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-28 02:41:25,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2024-11-28 02:41:25,439 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 16 [2024-11-28 02:41:25,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:25,439 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2024-11-28 02:41:25,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-11-28 02:41:25,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 02:41:25,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:25,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:25,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:41:25,440 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:25,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:25,441 INFO L85 PathProgramCache]: Analyzing trace with hash -662742910, now seen corresponding path program 1 times [2024-11-28 02:41:25,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:25,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156983954] [2024-11-28 02:41:25,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:25,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:25,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:25,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156983954] [2024-11-28 02:41:25,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156983954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:25,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:25,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:25,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852780667] [2024-11-28 02:41:25,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:25,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:25,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:25,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:25,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:25,728 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:25,795 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2024-11-28 02:41:25,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:25,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-28 02:41:25,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:25,798 INFO L225 Difference]: With dead ends: 68 [2024-11-28 02:41:25,798 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 02:41:25,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:25,799 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:25,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 75 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:41:25,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 02:41:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-28 02:41:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2024-11-28 02:41:25,808 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 17 [2024-11-28 02:41:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:25,808 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2024-11-28 02:41:25,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-11-28 02:41:25,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 02:41:25,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:25,809 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:25,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:41:25,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:25,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1838693136, now seen corresponding path program 1 times [2024-11-28 02:41:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:25,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259025525] [2024-11-28 02:41:25,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:25,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:25,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:25,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259025525] [2024-11-28 02:41:25,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259025525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:25,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:25,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:25,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146379439] [2024-11-28 02:41:25,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:25,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:25,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:25,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:25,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:25,970 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:26,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:26,048 INFO L93 Difference]: Finished difference Result 68 states and 90 transitions. [2024-11-28 02:41:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:26,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-28 02:41:26,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:26,051 INFO L225 Difference]: With dead ends: 68 [2024-11-28 02:41:26,051 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 02:41:26,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:26,052 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 42 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:26,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 75 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:41:26,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 02:41:26,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-28 02:41:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:26,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2024-11-28 02:41:26,061 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 18 [2024-11-28 02:41:26,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:26,062 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2024-11-28 02:41:26,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:26,062 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2024-11-28 02:41:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 02:41:26,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:26,062 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:26,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:41:26,063 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:26,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:26,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1484258719, now seen corresponding path program 1 times [2024-11-28 02:41:26,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:26,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036628112] [2024-11-28 02:41:26,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:26,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:26,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:26,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036628112] [2024-11-28 02:41:26,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036628112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:26,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:26,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:41:26,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514788825] [2024-11-28 02:41:26,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:26,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:26,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:26,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:26,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:26,385 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:26,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:26,423 INFO L93 Difference]: Finished difference Result 66 states and 86 transitions. [2024-11-28 02:41:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:26,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-28 02:41:26,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:26,425 INFO L225 Difference]: With dead ends: 66 [2024-11-28 02:41:26,425 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 02:41:26,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:41:26,426 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 38 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:26,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 81 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:41:26,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 02:41:26,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 02:41:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2024-11-28 02:41:26,436 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 19 [2024-11-28 02:41:26,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:26,437 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2024-11-28 02:41:26,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2024-11-28 02:41:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 02:41:26,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:26,437 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:26,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:41:26,438 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:26,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:26,438 INFO L85 PathProgramCache]: Analyzing trace with hash 331925199, now seen corresponding path program 1 times [2024-11-28 02:41:26,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:26,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110340286] [2024-11-28 02:41:26,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:26,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:26,498 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:26,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:41:26,552 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:41:26,553 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:41:26,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:41:26,558 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 02:41:26,593 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:41:26,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:41:26 BoogieIcfgContainer [2024-11-28 02:41:26,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:41:26,599 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:41:26,600 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:41:26,600 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:41:26,603 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:24" (3/4) ... [2024-11-28 02:41:26,607 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:41:26,609 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:41:26,610 INFO L158 Benchmark]: Toolchain (without parser) took 3382.73ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 65.7MB in the end (delta: 27.6MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-11-28 02:41:26,610 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:26,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.55ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 80.9MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:41:26,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.33ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 78.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:41:26,611 INFO L158 Benchmark]: Boogie Preprocessor took 78.07ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:26,613 INFO L158 Benchmark]: RCFGBuilder took 522.60ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 59.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:41:26,613 INFO L158 Benchmark]: TraceAbstraction took 2363.44ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 65.7MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:26,613 INFO L158 Benchmark]: Witness Printer took 9.80ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 65.7MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:26,618 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.55ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 80.9MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.33ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 78.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.07ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 522.60ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 59.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2363.44ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 65.7MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.80ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 65.7MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 22]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 68, overapproximation of bitwiseAnd at line 59. Possible FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 101); [L31] const SORT_4 msb_SORT_4 = (SORT_4)1 << (101 - 1); [L33] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L34] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L36] const SORT_4 var_5 = 1; [L37] const SORT_8 var_9 = 200; [L38] const SORT_1 var_14 = 1; [L39] const SORT_4 var_18 = 0; [L40] const SORT_8 var_23 = 100; [L42] SORT_1 input_2; [L43] SORT_1 input_3; [L45] EXPR __VERIFIER_nondet_uint128() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=(((unsigned __int128) 137438953471 << 64) | 18446744073709551615U), mask_SORT_8=-1, var_14=1, var_18=0, var_23=100, var_5=1, var_9=200] [L45] SORT_4 state_6 = __VERIFIER_nondet_uint128() & mask_SORT_4; [L46] EXPR __VERIFIER_nondet_uint128() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=(((unsigned __int128) 137438953471 << 64) | 18446744073709551615U), mask_SORT_8=-1, var_14=1, var_18=0, var_23=100, var_5=1, var_9=200] [L46] SORT_4 state_19 = __VERIFIER_nondet_uint128() & mask_SORT_4; [L48] SORT_4 init_7_arg_1 = var_5; [L49] state_6 = init_7_arg_1 [L50] SORT_4 init_20_arg_1 = var_18; [L51] state_19 = init_20_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=(((unsigned __int128) 137438953471 << 64) | 18446744073709551615U), mask_SORT_8=-1, state_19=0, state_6=1, var_14=1, var_23=100, var_9=200] [L54] input_2 = __VERIFIER_nondet_uchar() [L55] input_3 = __VERIFIER_nondet_uchar() [L58] SORT_8 var_10_arg_0 = var_9; VAL [mask_SORT_1=1, mask_SORT_4=(((unsigned __int128) 137438953471 << 64) | 18446744073709551615U), mask_SORT_8=-1, state_19=0, state_6=1, var_10_arg_0=200, var_14=1, var_23=100, var_9=200] [L59] EXPR var_10_arg_0 & mask_SORT_8 VAL [mask_SORT_1=1, mask_SORT_4=(((unsigned __int128) 137438953471 << 64) | 18446744073709551615U), mask_SORT_8=-1, state_19=0, state_6=1, var_14=1, var_23=100, var_9=200] [L59] var_10_arg_0 = var_10_arg_0 & mask_SORT_8 [L60] SORT_4 var_10 = var_10_arg_0; [L61] SORT_4 var_11_arg_0 = state_6; [L62] SORT_4 var_11_arg_1 = var_10; [L63] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L64] SORT_1 var_15_arg_0 = var_11; [L65] SORT_1 var_15 = ~var_15_arg_0; [L66] SORT_1 var_16_arg_0 = var_14; [L67] SORT_1 var_16_arg_1 = var_15; VAL [mask_SORT_1=1, mask_SORT_4=(((unsigned __int128) 137438953471 << 64) | 18446744073709551615U), mask_SORT_8=-1, state_19=0, state_6=1, var_14=1, var_16_arg_0=1, var_16_arg_1=-1, var_23=100, var_9=200] [L68] EXPR var_16_arg_0 & var_16_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=(((unsigned __int128) 137438953471 << 64) | 18446744073709551615U), mask_SORT_8=-1, state_19=0, state_6=1, var_14=1, var_23=100, var_9=200] [L68] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L69] EXPR var_16 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=(((unsigned __int128) 137438953471 << 64) | 18446744073709551615U), mask_SORT_8=-1, state_19=0, state_6=1, var_14=1, var_23=100, var_9=200] [L69] var_16 = var_16 & mask_SORT_1 [L70] SORT_1 bad_17_arg_0 = var_16; [L71] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND TRUE !(cond) [L22] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 497 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 286 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 211 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 02:41:26,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 51c029c3e6da7a855218885875d9decd9132b07b4b4a0cd8ca561de10b840446 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:41:29,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:41:29,474 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-28 02:41:29,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:41:29,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:41:29,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:41:29,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:41:29,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:41:29,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:41:29,511 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:41:29,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:41:29,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:41:29,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:41:29,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:41:29,513 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:41:29,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:41:29,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:41:29,514 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:29,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:29,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:41:29,515 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:41:29,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:41:29,516 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:41:29,516 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:41:29,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:41:29,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:41:29,516 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:41:29,516 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:41:29,516 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_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c029c3e6da7a855218885875d9decd9132b07b4b4a0cd8ca561de10b840446 [2024-11-28 02:41:29,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:41:29,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:41:29,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:41:29,894 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:41:29,895 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:41:29,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c [2024-11-28 02:41:32,848 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data/8bef74706/a6d5d92eecb342c1bcaf9b20e2ebf5b5/FLAG97d557147 [2024-11-28 02:41:33,155 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:41:33,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c [2024-11-28 02:41:33,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data/8bef74706/a6d5d92eecb342c1bcaf9b20e2ebf5b5/FLAG97d557147 [2024-11-28 02:41:33,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/data/8bef74706/a6d5d92eecb342c1bcaf9b20e2ebf5b5 [2024-11-28 02:41:33,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:41:33,201 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:41:33,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:33,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:41:33,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:41:33,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664786f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33, skipping insertion in model container [2024-11-28 02:41:33,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:41:33,417 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_b9d72149-ae8d-4390-9ab6-b13b38b1023a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c[1297,1310] [2024-11-28 02:41:33,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:33,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:41:33,509 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_b9d72149-ae8d-4390-9ab6-b13b38b1023a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.seq.c[1297,1310] [2024-11-28 02:41:33,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:33,563 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:41:33,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33 WrapperNode [2024-11-28 02:41:33,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:33,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:33,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:41:33,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:41:33,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,612 INFO L138 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2024-11-28 02:41:33,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:33,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:41:33,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:41:33,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:41:33,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,649 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-11-28 02:41:33,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,656 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:41:33,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:41:33,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:41:33,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:41:33,678 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (1/1) ... [2024-11-28 02:41:33,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:33,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:33,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:33,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:41:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:41:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:41:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:41:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:41:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:41:33,860 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:41:33,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:41:34,092 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-28 02:41:34,093 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:41:34,102 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:41:34,102 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:41:34,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:34 BoogieIcfgContainer [2024-11-28 02:41:34,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:41:34,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:41:34,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:41:34,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:41:34,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:41:33" (1/3) ... [2024-11-28 02:41:34,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af46b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:34, skipping insertion in model container [2024-11-28 02:41:34,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:33" (2/3) ... [2024-11-28 02:41:34,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af46b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:34, skipping insertion in model container [2024-11-28 02:41:34,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:34" (3/3) ... [2024-11-28 02:41:34,115 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.seq.c [2024-11-28 02:41:34,133 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:41:34,135 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.seq.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:41:34,202 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:41:34,216 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;@4ed7db9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:41:34,217 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:41:34,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:34,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:41:34,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:34,231 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:41:34,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:34,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:34,237 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-28 02:41:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:41:34,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803514861] [2024-11-28 02:41:34,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:34,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:34,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:34,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:34,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:41:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:34,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 02:41:34,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:34,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:34,741 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:41:34,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803514861] [2024-11-28 02:41:34,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803514861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:34,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:34,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:34,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733656171] [2024-11-28 02:41:34,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:34,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:34,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:41:34,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:34,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:34,775 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:34,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:34,848 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-28 02:41:34,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:34,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-28 02:41:34,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:34,857 INFO L225 Difference]: With dead ends: 18 [2024-11-28 02:41:34,857 INFO L226 Difference]: Without dead ends: 10 [2024-11-28 02:41:34,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:34,862 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:34,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:41:34,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-28 02:41:34,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-28 02:41:34,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-28 02:41:34,892 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-28 02:41:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:34,893 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-28 02:41:34,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-28 02:41:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:41:34,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:34,894 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:34,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:41:35,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:35,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:35,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:35,095 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-28 02:41:35,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:41:35,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856249365] [2024-11-28 02:41:35,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:35,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:35,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:35,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:35,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:41:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:35,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 02:41:35,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:35,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:36,837 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:41:36,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856249365] [2024-11-28 02:41:36,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856249365] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:36,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:41:36,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 02:41:36,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492356566] [2024-11-28 02:41:36,838 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:36,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:41:36,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:41:36,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:41:36,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:41:36,840 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:37,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:37,460 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-28 02:41:37,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:41:37,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 02:41:37,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:37,461 INFO L225 Difference]: With dead ends: 18 [2024-11-28 02:41:37,461 INFO L226 Difference]: Without dead ends: 16 [2024-11-28 02:41:37,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:41:37,464 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:37,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 19 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:41:37,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-28 02:41:37,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-28 02:41:37,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:37,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-28 02:41:37,473 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-28 02:41:37,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:37,473 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-28 02:41:37,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-28 02:41:37,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 02:41:37,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:37,474 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-28 02:41:37,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:41:37,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:37,675 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:37,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:37,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 2 times [2024-11-28 02:41:37,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:41:37,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009013410] [2024-11-28 02:41:37,678 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:41:37,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:37,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:37,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:37,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:41:37,808 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:41:37,808 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:41:37,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 02:41:37,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:38,577 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:45,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:41:45,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009013410] [2024-11-28 02:41:45,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009013410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:45,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:41:45,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 02:41:45,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031819307] [2024-11-28 02:41:45,466 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:45,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:41:45,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:41:45,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:41:45,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:41:45,467 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:50,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:50,828 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2024-11-28 02:41:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 02:41:50,828 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-28 02:41:50,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:50,829 INFO L225 Difference]: With dead ends: 30 [2024-11-28 02:41:50,829 INFO L226 Difference]: Without dead ends: 28 [2024-11-28 02:41:50,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:41:50,831 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:50,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:41:50,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-28 02:41:50,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-11-28 02:41:50,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:50,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-11-28 02:41:50,844 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2024-11-28 02:41:50,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:50,844 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-11-28 02:41:50,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:41:50,844 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-11-28 02:41:50,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 02:41:50,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:50,845 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2024-11-28 02:41:50,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:41:51,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:51,046 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:51,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:51,047 INFO L85 PathProgramCache]: Analyzing trace with hash 96933411, now seen corresponding path program 3 times [2024-11-28 02:41:51,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:41:51,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952061398] [2024-11-28 02:41:51,047 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:41:51,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:51,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:51,049 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:51,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:41:51,195 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 02:41:51,195 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:41:51,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-28 02:41:51,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 02:41:53,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:56,339 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 5 proven. 32 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 02:42:56,340 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:42:56,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952061398] [2024-11-28 02:42:56,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952061398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:42:56,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:42:56,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-28 02:42:56,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289886476] [2024-11-28 02:42:56,340 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:56,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:42:56,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:42:56,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:42:56,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=190, Unknown=1, NotChecked=0, Total=240 [2024-11-28 02:42:56,341 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:42:57,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:57,609 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2024-11-28 02:42:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:42:57,610 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-28 02:42:57,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:57,611 INFO L225 Difference]: With dead ends: 27 [2024-11-28 02:42:57,611 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:42:57,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=78, Invalid=227, Unknown=1, NotChecked=0, Total=306 [2024-11-28 02:42:57,612 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:57,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:42:57,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:42:57,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:42:57,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:42:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:42:57,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-28 02:42:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:57,613 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:42:57,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:42:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:42:57,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:42:57,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:42:57,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:42:57,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:57,819 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2024-11-28 02:42:57,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:43:08,241 WARN L286 SmtUtils]: Spent 10.38s on a formula simplification. DAG size of input: 155 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-28 02:43:08,245 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:43:08,257 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-28 02:43:08,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:43:08 BoogieIcfgContainer [2024-11-28 02:43:08,260 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:43:08,261 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:43:08,261 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:43:08,261 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:43:08,262 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:34" (3/4) ... [2024-11-28 02:43:08,265 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:43:08,276 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 02:43:08,277 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 02:43:08,277 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:43:08,277 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:43:08,278 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:43:08,368 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:43:08,368 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:43:08,368 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:43:08,370 INFO L158 Benchmark]: Toolchain (without parser) took 95168.23ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 60.2MB in the beginning and 87.7MB in the end (delta: -27.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-11-28 02:43:08,371 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 83.9MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:43:08,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.47ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 47.5MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:43:08,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.35ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 46.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:43:08,374 INFO L158 Benchmark]: Boogie Preprocessor took 60.94ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 44.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:43:08,375 INFO L158 Benchmark]: RCFGBuilder took 428.00ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 32.0MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:43:08,375 INFO L158 Benchmark]: TraceAbstraction took 94154.54ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 31.4MB in the beginning and 93.3MB in the end (delta: -61.9MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-11-28 02:43:08,375 INFO L158 Benchmark]: Witness Printer took 107.50ms. Allocated memory is still 125.8MB. Free memory was 93.3MB in the beginning and 87.7MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:43:08,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 83.9MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.47ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 47.5MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.35ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 46.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.94ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 44.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 428.00ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 32.0MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 94154.54ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 31.4MB in the beginning and 93.3MB in the end (delta: -61.9MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Witness Printer took 107.50ms. Allocated memory is still 125.8MB. Free memory was 93.3MB in the beginning and 87.7MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 83.6s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 14 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 27.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=3, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 74.7s InterpolantComputationTime, 53 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 94 ConstructedInterpolants, 40 QuantifiedInterpolants, 18262 SizeOfPredicates, 25 NumberOfNonLiveVariables, 288 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 91/188 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((((((1 == var_14) && (mask_SORT_4 == (((unsigned __int128) 137438953471 << 64) | 18446744073709551615U))) && (200 == var_9)) && (0 == ((1 + mask_SORT_8) % 4294967296))) && (1 == mask_SORT_1)) && (100 == var_23)) && ((state_6 == (state_19 & (((unsigned __int128) 137438953471 << 64) | 18446744073709551615U))) || (state_19 < 100))) && (state_6 < 200)) RESULT: Ultimate proved your program to be correct! [2024-11-28 02:43:08,600 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-28 02:43:08,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d72149-ae8d-4390-9ab6-b13b38b1023a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE