./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX --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 827228a8fb731d7038bb1b8c7cce3c35edda9a5c3ee552084966688fbdc104d2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:00:27,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:00:27,208 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 18:00:27,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:00:27,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:00:27,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:00:27,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:00:27,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:00:27,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:00:27,265 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:00:27,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:00:27,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:00:27,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:00:27,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:00:27,271 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:00:27,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:00:27,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:00:27,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:00:27,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:00:27,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:00:27,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:00:27,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:00:27,278 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:00:27,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:00:27,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:00:27,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:00:27,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:00:27,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:00:27,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:00:27,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:00:27,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:00:27,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:00:27,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:00:27,284 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:00:27,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:00:27,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:00:27,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:00:27,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:00:27,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:00:27,287 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 827228a8fb731d7038bb1b8c7cce3c35edda9a5c3ee552084966688fbdc104d2 [2024-11-08 18:00:27,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:00:27,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:00:27,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:00:27,704 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:00:27,705 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:00:27,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c Unable to find full path for "g++" [2024-11-08 18:00:30,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:00:30,282 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:00:30,283 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c [2024-11-08 18:00:30,294 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/data/fb5f72c52/79c9df7d4e484c9cac165fc2e0825b4e/FLAGedc7a263b [2024-11-08 18:00:30,598 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/data/fb5f72c52/79c9df7d4e484c9cac165fc2e0825b4e [2024-11-08 18:00:30,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:00:30,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:00:30,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:00:30,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:00:30,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:00:30,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:00:30" (1/1) ... [2024-11-08 18:00:30,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390710c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:30, skipping insertion in model container [2024-11-08 18:00:30,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:00:30" (1/1) ... [2024-11-08 18:00:30,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:00:30,880 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_f640612a-fe73-4638-9237-b310c6d951f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c[1250,1263] [2024-11-08 18:00:30,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:00:30,983 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:00:30,994 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_f640612a-fe73-4638-9237-b310c6d951f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c[1250,1263] [2024-11-08 18:00:31,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:00:31,107 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:00:31,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31 WrapperNode [2024-11-08 18:00:31,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:00:31,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:00:31,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:00:31,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:00:31,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,210 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 309 [2024-11-08 18:00:31,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:00:31,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:00:31,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:00:31,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:00:31,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,274 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:00:31,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:00:31,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:00:31,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:00:31,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:00:31,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (1/1) ... [2024-11-08 18:00:31,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:00:31,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:31,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:00:31,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:00:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:00:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:00:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:00:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:00:31,564 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:00:31,567 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:00:32,503 INFO L? ?]: Removed 175 outVars from TransFormulas that were not future-live. [2024-11-08 18:00:32,504 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:00:32,527 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:00:32,527 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:00:32,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:00:32 BoogieIcfgContainer [2024-11-08 18:00:32,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:00:32,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:00:32,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:00:32,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:00:32,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:00:30" (1/3) ... [2024-11-08 18:00:32,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc75ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:00:32, skipping insertion in model container [2024-11-08 18:00:32,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:31" (2/3) ... [2024-11-08 18:00:32,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc75ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:00:32, skipping insertion in model container [2024-11-08 18:00:32,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:00:32" (3/3) ... [2024-11-08 18:00:32,545 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_segments.c [2024-11-08 18:00:32,573 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:00:32,574 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:00:32,694 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:00:32,704 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;@30ac4819, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:00:32,705 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:00:32,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 81 states have (on average 1.4938271604938271) internal successors, (121), 82 states have internal predecessors, (121), 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) [2024-11-08 18:00:32,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 18:00:32,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:32,724 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:32,724 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:32,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:32,736 INFO L85 PathProgramCache]: Analyzing trace with hash -527743996, now seen corresponding path program 1 times [2024-11-08 18:00:32,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:32,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965390083] [2024-11-08 18:00:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:32,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:33,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:33,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965390083] [2024-11-08 18:00:33,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965390083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:33,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:33,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:00:33,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78230641] [2024-11-08 18:00:33,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:33,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:00:33,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:33,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:00:33,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:00:33,699 INFO L87 Difference]: Start difference. First operand has 83 states, 81 states have (on average 1.4938271604938271) internal successors, (121), 82 states have internal predecessors, (121), 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 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-11-08 18:00:33,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:33,781 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2024-11-08 18:00:33,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:00:33,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2024-11-08 18:00:33,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:33,797 INFO L225 Difference]: With dead ends: 158 [2024-11-08 18:00:33,797 INFO L226 Difference]: Without dead ends: 81 [2024-11-08 18:00:33,801 INFO L431 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 [2024-11-08 18:00:33,809 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 333 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 [2024-11-08 18:00:33,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:00:33,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-08 18:00:33,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-08 18:00:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.4625) internal successors, (117), 80 states have internal predecessors, (117), 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) [2024-11-08 18:00:33,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2024-11-08 18:00:33,871 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 31 [2024-11-08 18:00:33,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:33,871 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2024-11-08 18:00:33,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-11-08 18:00:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2024-11-08 18:00:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 18:00:33,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:33,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:33,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:00:33,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:33,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:33,875 INFO L85 PathProgramCache]: Analyzing trace with hash 821500634, now seen corresponding path program 1 times [2024-11-08 18:00:33,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:33,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582519083] [2024-11-08 18:00:33,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:33,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:34,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:34,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582519083] [2024-11-08 18:00:34,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582519083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:34,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:34,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:00:34,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867437581] [2024-11-08 18:00:34,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:34,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:00:34,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:34,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:00:34,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:00:34,199 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-08 18:00:34,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:34,264 INFO L93 Difference]: Finished difference Result 158 states and 229 transitions. [2024-11-08 18:00:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:00:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2024-11-08 18:00:34,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:34,266 INFO L225 Difference]: With dead ends: 158 [2024-11-08 18:00:34,266 INFO L226 Difference]: Without dead ends: 83 [2024-11-08 18:00:34,267 INFO L431 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 [2024-11-08 18:00:34,272 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 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 [2024-11-08 18:00:34,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:00:34,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-08 18:00:34,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-08 18:00:34,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.451219512195122) internal successors, (119), 82 states have internal predecessors, (119), 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) [2024-11-08 18:00:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 119 transitions. [2024-11-08 18:00:34,290 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 119 transitions. Word has length 32 [2024-11-08 18:00:34,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:34,290 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 119 transitions. [2024-11-08 18:00:34,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-08 18:00:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 119 transitions. [2024-11-08 18:00:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 18:00:34,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:34,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:34,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:00:34,296 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:34,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:34,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1401249891, now seen corresponding path program 1 times [2024-11-08 18:00:34,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:34,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334123386] [2024-11-08 18:00:34,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:34,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:34,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:34,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334123386] [2024-11-08 18:00:34,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334123386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:34,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:34,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:00:34,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885797210] [2024-11-08 18:00:34,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:34,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:00:34,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:34,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:00:34,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:00:34,940 INFO L87 Difference]: Start difference. First operand 83 states and 119 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2024-11-08 18:00:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:35,065 INFO L93 Difference]: Finished difference Result 164 states and 236 transitions. [2024-11-08 18:00:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:00:35,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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 33 [2024-11-08 18:00:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:35,067 INFO L225 Difference]: With dead ends: 164 [2024-11-08 18:00:35,067 INFO L226 Difference]: Without dead ends: 87 [2024-11-08 18:00:35,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:00:35,070 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 96 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:35,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 417 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:00:35,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-08 18:00:35,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-11-08 18:00:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.4352941176470588) internal successors, (122), 85 states have internal predecessors, (122), 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) [2024-11-08 18:00:35,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2024-11-08 18:00:35,079 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 33 [2024-11-08 18:00:35,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:35,079 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2024-11-08 18:00:35,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2024-11-08 18:00:35,080 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2024-11-08 18:00:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 18:00:35,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:35,081 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:35,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:00:35,081 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:35,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:35,082 INFO L85 PathProgramCache]: Analyzing trace with hash 419813313, now seen corresponding path program 1 times [2024-11-08 18:00:35,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:35,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115170843] [2024-11-08 18:00:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:35,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:35,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:35,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115170843] [2024-11-08 18:00:35,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115170843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:35,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:35,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:00:35,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482015738] [2024-11-08 18:00:35,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:35,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:00:35,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:35,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:00:35,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:00:35,877 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-11-08 18:00:36,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:36,071 INFO L93 Difference]: Finished difference Result 175 states and 250 transitions. [2024-11-08 18:00:36,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:00:36,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2024-11-08 18:00:36,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:36,075 INFO L225 Difference]: With dead ends: 175 [2024-11-08 18:00:36,076 INFO L226 Difference]: Without dead ends: 95 [2024-11-08 18:00:36,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:00:36,078 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 114 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:36,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 626 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:00:36,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-08 18:00:36,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-08 18:00:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.425531914893617) internal successors, (134), 94 states have internal predecessors, (134), 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) [2024-11-08 18:00:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2024-11-08 18:00:36,088 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 134 transitions. Word has length 34 [2024-11-08 18:00:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:36,089 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 134 transitions. [2024-11-08 18:00:36,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-11-08 18:00:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 134 transitions. [2024-11-08 18:00:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 18:00:36,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:36,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:36,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:00:36,092 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:36,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:36,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1075471613, now seen corresponding path program 1 times [2024-11-08 18:00:36,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:36,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289774365] [2024-11-08 18:00:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:36,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:37,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:37,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:37,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289774365] [2024-11-08 18:00:37,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289774365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:37,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:37,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:00:37,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880015688] [2024-11-08 18:00:37,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:37,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:00:37,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:37,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:00:37,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:00:37,643 INFO L87 Difference]: Start difference. First operand 95 states and 134 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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) [2024-11-08 18:00:37,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:37,944 INFO L93 Difference]: Finished difference Result 201 states and 285 transitions. [2024-11-08 18:00:37,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:00:37,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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 34 [2024-11-08 18:00:37,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:37,947 INFO L225 Difference]: With dead ends: 201 [2024-11-08 18:00:37,947 INFO L226 Difference]: Without dead ends: 112 [2024-11-08 18:00:37,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:00:37,949 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 143 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:37,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 702 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:00:37,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-08 18:00:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2024-11-08 18:00:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.4285714285714286) internal successors, (150), 105 states have internal predecessors, (150), 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) [2024-11-08 18:00:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 150 transitions. [2024-11-08 18:00:37,959 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 150 transitions. Word has length 34 [2024-11-08 18:00:37,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:37,960 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 150 transitions. [2024-11-08 18:00:37,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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) [2024-11-08 18:00:37,960 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 150 transitions. [2024-11-08 18:00:37,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 18:00:37,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:37,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:37,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:00:37,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:37,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:37,963 INFO L85 PathProgramCache]: Analyzing trace with hash -768598698, now seen corresponding path program 1 times [2024-11-08 18:00:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582604090] [2024-11-08 18:00:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:37,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:38,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:38,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582604090] [2024-11-08 18:00:38,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582604090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:38,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:38,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:00:38,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797004306] [2024-11-08 18:00:38,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:38,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:00:38,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:38,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:00:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:00:38,185 INFO L87 Difference]: Start difference. First operand 106 states and 150 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-08 18:00:38,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:38,281 INFO L93 Difference]: Finished difference Result 300 states and 425 transitions. [2024-11-08 18:00:38,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:00:38,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-08 18:00:38,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:38,283 INFO L225 Difference]: With dead ends: 300 [2024-11-08 18:00:38,283 INFO L226 Difference]: Without dead ends: 200 [2024-11-08 18:00:38,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:00:38,289 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 297 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:38,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 312 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:00:38,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-08 18:00:38,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 133. [2024-11-08 18:00:38,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.4318181818181819) internal successors, (189), 132 states have internal predecessors, (189), 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) [2024-11-08 18:00:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 189 transitions. [2024-11-08 18:00:38,302 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 189 transitions. Word has length 35 [2024-11-08 18:00:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:38,302 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 189 transitions. [2024-11-08 18:00:38,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-08 18:00:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 189 transitions. [2024-11-08 18:00:38,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 18:00:38,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:38,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:38,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:00:38,308 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:38,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:38,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1902212035, now seen corresponding path program 1 times [2024-11-08 18:00:38,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:38,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689793423] [2024-11-08 18:00:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:38,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:38,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689793423] [2024-11-08 18:00:38,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689793423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:38,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:38,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:00:38,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419823150] [2024-11-08 18:00:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:38,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:00:38,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:38,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:00:38,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:00:38,891 INFO L87 Difference]: Start difference. First operand 133 states and 189 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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) [2024-11-08 18:00:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:39,043 INFO L93 Difference]: Finished difference Result 262 states and 372 transitions. [2024-11-08 18:00:39,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:00:39,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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 35 [2024-11-08 18:00:39,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:39,045 INFO L225 Difference]: With dead ends: 262 [2024-11-08 18:00:39,045 INFO L226 Difference]: Without dead ends: 155 [2024-11-08 18:00:39,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:00:39,048 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 122 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:39,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 625 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:00:39,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-08 18:00:39,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-11-08 18:00:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 154 states have internal predecessors, (216), 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) [2024-11-08 18:00:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 216 transitions. [2024-11-08 18:00:39,075 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 216 transitions. Word has length 35 [2024-11-08 18:00:39,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:39,083 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 216 transitions. [2024-11-08 18:00:39,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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) [2024-11-08 18:00:39,083 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 216 transitions. [2024-11-08 18:00:39,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 18:00:39,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:39,085 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:39,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:00:39,085 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:39,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1405107423, now seen corresponding path program 1 times [2024-11-08 18:00:39,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:39,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466769782] [2024-11-08 18:00:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:39,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:39,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:39,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466769782] [2024-11-08 18:00:39,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466769782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:39,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:39,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:00:39,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967677210] [2024-11-08 18:00:39,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:39,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:00:39,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:39,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:00:39,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:00:39,265 INFO L87 Difference]: Start difference. First operand 155 states and 216 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-08 18:00:39,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:39,365 INFO L93 Difference]: Finished difference Result 339 states and 471 transitions. [2024-11-08 18:00:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:00:39,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-08 18:00:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:39,367 INFO L225 Difference]: With dead ends: 339 [2024-11-08 18:00:39,368 INFO L226 Difference]: Without dead ends: 208 [2024-11-08 18:00:39,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:00:39,369 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 295 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:39,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 312 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:00:39,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-08 18:00:39,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 141. [2024-11-08 18:00:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.3928571428571428) internal successors, (195), 140 states have internal predecessors, (195), 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) [2024-11-08 18:00:39,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 195 transitions. [2024-11-08 18:00:39,399 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 195 transitions. Word has length 35 [2024-11-08 18:00:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:39,404 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 195 transitions. [2024-11-08 18:00:39,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-08 18:00:39,404 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 195 transitions. [2024-11-08 18:00:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 18:00:39,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:39,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:39,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:00:39,406 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:39,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:39,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1208224587, now seen corresponding path program 1 times [2024-11-08 18:00:39,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:39,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774799031] [2024-11-08 18:00:39,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:39,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:40,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:40,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774799031] [2024-11-08 18:00:40,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774799031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:40,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:40,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:00:40,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533137364] [2024-11-08 18:00:40,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:40,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:00:40,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:40,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:00:40,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:00:40,121 INFO L87 Difference]: Start difference. First operand 141 states and 195 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2024-11-08 18:00:40,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:40,331 INFO L93 Difference]: Finished difference Result 277 states and 385 transitions. [2024-11-08 18:00:40,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:00:40,332 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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 36 [2024-11-08 18:00:40,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:40,334 INFO L225 Difference]: With dead ends: 277 [2024-11-08 18:00:40,334 INFO L226 Difference]: Without dead ends: 163 [2024-11-08 18:00:40,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:00:40,335 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 116 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:40,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 831 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:00:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-08 18:00:40,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 158. [2024-11-08 18:00:40,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.3885350318471337) internal successors, (218), 157 states have internal predecessors, (218), 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) [2024-11-08 18:00:40,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 218 transitions. [2024-11-08 18:00:40,344 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 218 transitions. Word has length 36 [2024-11-08 18:00:40,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:40,345 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 218 transitions. [2024-11-08 18:00:40,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2024-11-08 18:00:40,345 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 218 transitions. [2024-11-08 18:00:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 18:00:40,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:40,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:40,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:00:40,347 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:40,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:40,348 INFO L85 PathProgramCache]: Analyzing trace with hash 812532178, now seen corresponding path program 1 times [2024-11-08 18:00:40,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:40,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034341682] [2024-11-08 18:00:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:40,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:40,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:40,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:40,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034341682] [2024-11-08 18:00:40,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034341682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:40,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:40,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:00:40,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782127364] [2024-11-08 18:00:40,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:40,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:00:40,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:40,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:00:40,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:00:40,522 INFO L87 Difference]: Start difference. First operand 158 states and 218 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2024-11-08 18:00:40,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:40,610 INFO L93 Difference]: Finished difference Result 358 states and 495 transitions. [2024-11-08 18:00:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:00:40,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 36 [2024-11-08 18:00:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:40,612 INFO L225 Difference]: With dead ends: 358 [2024-11-08 18:00:40,613 INFO L226 Difference]: Without dead ends: 217 [2024-11-08 18:00:40,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:00:40,615 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 277 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:40,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 312 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:00:40,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-08 18:00:40,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 148. [2024-11-08 18:00:40,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.3877551020408163) internal successors, (204), 147 states have internal predecessors, (204), 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) [2024-11-08 18:00:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2024-11-08 18:00:40,622 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 204 transitions. Word has length 36 [2024-11-08 18:00:40,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:40,622 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 204 transitions. [2024-11-08 18:00:40,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2024-11-08 18:00:40,622 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 204 transitions. [2024-11-08 18:00:40,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 18:00:40,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:40,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:40,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:00:40,624 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:40,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:40,625 INFO L85 PathProgramCache]: Analyzing trace with hash 794827137, now seen corresponding path program 1 times [2024-11-08 18:00:40,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:40,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987289211] [2024-11-08 18:00:40,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:40,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:41,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:41,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987289211] [2024-11-08 18:00:41,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987289211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:41,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:41,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 18:00:41,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296808221] [2024-11-08 18:00:41,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:41,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 18:00:41,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 18:00:41,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:00:41,545 INFO L87 Difference]: Start difference. First operand 148 states and 204 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 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) [2024-11-08 18:00:42,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:42,070 INFO L93 Difference]: Finished difference Result 301 states and 419 transitions. [2024-11-08 18:00:42,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:00:42,070 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 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 37 [2024-11-08 18:00:42,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:42,072 INFO L225 Difference]: With dead ends: 301 [2024-11-08 18:00:42,072 INFO L226 Difference]: Without dead ends: 172 [2024-11-08 18:00:42,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:00:42,073 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 139 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:42,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1294 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:00:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-08 18:00:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 165. [2024-11-08 18:00:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.396341463414634) internal successors, (229), 164 states have internal predecessors, (229), 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) [2024-11-08 18:00:42,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 229 transitions. [2024-11-08 18:00:42,080 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 229 transitions. Word has length 37 [2024-11-08 18:00:42,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:42,080 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 229 transitions. [2024-11-08 18:00:42,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 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) [2024-11-08 18:00:42,081 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 229 transitions. [2024-11-08 18:00:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 18:00:42,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:42,082 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:42,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:00:42,082 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:42,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:42,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1450485437, now seen corresponding path program 1 times [2024-11-08 18:00:42,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:42,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072238552] [2024-11-08 18:00:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:42,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:42,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:42,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072238552] [2024-11-08 18:00:42,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072238552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:42,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:42,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:00:42,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701492579] [2024-11-08 18:00:42,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:42,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:00:42,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:42,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:00:42,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:00:42,960 INFO L87 Difference]: Start difference. First operand 165 states and 229 transitions. Second operand has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 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) [2024-11-08 18:00:43,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:43,278 INFO L93 Difference]: Finished difference Result 328 states and 460 transitions. [2024-11-08 18:00:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:00:43,280 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 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 37 [2024-11-08 18:00:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:43,281 INFO L225 Difference]: With dead ends: 328 [2024-11-08 18:00:43,281 INFO L226 Difference]: Without dead ends: 182 [2024-11-08 18:00:43,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:00:43,283 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 121 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:43,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1073 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:00:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-08 18:00:43,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2024-11-08 18:00:43,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.3908045977011494) internal successors, (242), 174 states have internal predecessors, (242), 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) [2024-11-08 18:00:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 242 transitions. [2024-11-08 18:00:43,290 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 242 transitions. Word has length 37 [2024-11-08 18:00:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:43,290 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 242 transitions. [2024-11-08 18:00:43,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 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) [2024-11-08 18:00:43,291 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 242 transitions. [2024-11-08 18:00:43,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 18:00:43,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:43,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:43,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:00:43,292 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:43,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:43,293 INFO L85 PathProgramCache]: Analyzing trace with hash -66052326, now seen corresponding path program 1 times [2024-11-08 18:00:43,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:43,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60212827] [2024-11-08 18:00:43,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:43,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:43,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:43,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:43,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60212827] [2024-11-08 18:00:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60212827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:43,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:43,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:00:43,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451682175] [2024-11-08 18:00:43,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:43,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:00:43,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:43,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:00:43,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:00:43,472 INFO L87 Difference]: Start difference. First operand 175 states and 242 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-11-08 18:00:43,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:43,553 INFO L93 Difference]: Finished difference Result 406 states and 562 transitions. [2024-11-08 18:00:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:00:43,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 37 [2024-11-08 18:00:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:43,556 INFO L225 Difference]: With dead ends: 406 [2024-11-08 18:00:43,556 INFO L226 Difference]: Without dead ends: 250 [2024-11-08 18:00:43,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:00:43,557 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 255 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:43,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 312 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:00:43,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-08 18:00:43,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 183. [2024-11-08 18:00:43,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 1.379120879120879) internal successors, (251), 182 states have internal predecessors, (251), 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) [2024-11-08 18:00:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 251 transitions. [2024-11-08 18:00:43,565 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 251 transitions. Word has length 37 [2024-11-08 18:00:43,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:43,566 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 251 transitions. [2024-11-08 18:00:43,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-11-08 18:00:43,566 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 251 transitions. [2024-11-08 18:00:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 18:00:43,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:43,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:43,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:00:43,568 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:43,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash -320285454, now seen corresponding path program 1 times [2024-11-08 18:00:43,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:43,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934113555] [2024-11-08 18:00:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:43,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:44,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934113555] [2024-11-08 18:00:44,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934113555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:44,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:44,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:00:44,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864142277] [2024-11-08 18:00:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:44,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:00:44,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:44,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:00:44,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:00:44,198 INFO L87 Difference]: Start difference. First operand 183 states and 251 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2024-11-08 18:00:44,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:44,300 INFO L93 Difference]: Finished difference Result 339 states and 470 transitions. [2024-11-08 18:00:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:00:44,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 37 [2024-11-08 18:00:44,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:44,303 INFO L225 Difference]: With dead ends: 339 [2024-11-08 18:00:44,303 INFO L226 Difference]: Without dead ends: 180 [2024-11-08 18:00:44,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:00:44,304 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 9 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:44,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 637 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:00:44,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-08 18:00:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-08 18:00:44,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.3743016759776536) internal successors, (246), 179 states have internal predecessors, (246), 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) [2024-11-08 18:00:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 246 transitions. [2024-11-08 18:00:44,313 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 246 transitions. Word has length 37 [2024-11-08 18:00:44,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:44,313 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 246 transitions. [2024-11-08 18:00:44,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2024-11-08 18:00:44,313 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 246 transitions. [2024-11-08 18:00:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 18:00:44,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:44,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:44,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:00:44,315 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:44,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash 434382745, now seen corresponding path program 1 times [2024-11-08 18:00:44,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:44,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758707242] [2024-11-08 18:00:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:44,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:00:44,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:00:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:00:44,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:00:44,465 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:00:44,467 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:00:44,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:00:44,473 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:44,521 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-08 18:00:44,532 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:00:44,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:00:44 BoogieIcfgContainer [2024-11-08 18:00:44,536 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:00:44,537 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:00:44,537 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:00:44,537 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:00:44,541 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:00:32" (3/4) ... [2024-11-08 18:00:44,545 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:00:44,546 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:00:44,547 INFO L158 Benchmark]: Toolchain (without parser) took 13943.41ms. Allocated memory was 125.8MB in the beginning and 270.5MB in the end (delta: 144.7MB). Free memory was 94.6MB in the beginning and 187.0MB in the end (delta: -92.4MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2024-11-08 18:00:44,548 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:00:44,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.12ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 77.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 18:00:44,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.95ms. Allocated memory is still 125.8MB. Free memory was 77.4MB in the beginning and 69.9MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 18:00:44,550 INFO L158 Benchmark]: Boogie Preprocessor took 102.46ms. Allocated memory is still 125.8MB. Free memory was 69.9MB in the beginning and 64.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:00:44,550 INFO L158 Benchmark]: RCFGBuilder took 1215.39ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 64.9MB in the beginning and 87.5MB in the end (delta: -22.6MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-11-08 18:00:44,551 INFO L158 Benchmark]: TraceAbstraction took 12003.73ms. Allocated memory was 155.2MB in the beginning and 270.5MB in the end (delta: 115.3MB). Free memory was 86.6MB in the beginning and 187.0MB in the end (delta: -100.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:00:44,551 INFO L158 Benchmark]: Witness Printer took 9.62ms. Allocated memory is still 270.5MB. Free memory is still 187.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:00:44,553 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.12ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 77.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.95ms. Allocated memory is still 125.8MB. Free memory was 77.4MB in the beginning and 69.9MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.46ms. Allocated memory is still 125.8MB. Free memory was 69.9MB in the beginning and 64.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1215.39ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 64.9MB in the beginning and 87.5MB in the end (delta: -22.6MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12003.73ms. Allocated memory was 155.2MB in the beginning and 270.5MB in the end (delta: 115.3MB). Free memory was 86.6MB in the beginning and 187.0MB in the end (delta: -100.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 9.62ms. Allocated memory is still 270.5MB. Free memory is still 187.0MB. 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: 21]: 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 113. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L32] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L33] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L35] const SORT_52 mask_SORT_52 = (SORT_52)-1 >> (sizeof(SORT_52) * 8 - 2); [L36] const SORT_52 msb_SORT_52 = (SORT_52)1 << (2 - 1); [L38] const SORT_54 mask_SORT_54 = (SORT_54)-1 >> (sizeof(SORT_54) * 8 - 3); [L39] const SORT_54 msb_SORT_54 = (SORT_54)1 << (3 - 1); [L41] const SORT_4 var_5 = 0; [L42] const SORT_8 var_10 = 0; [L43] const SORT_8 var_13 = 1; [L44] const SORT_8 var_17 = 2; [L45] const SORT_8 var_21 = 3; [L46] const SORT_8 var_25 = 4; [L47] const SORT_1 var_30 = 1; [L48] const SORT_4 var_41 = 1; [L49] const SORT_4 var_44 = 4; [L50] const SORT_4 var_45 = 3; [L51] const SORT_4 var_50 = 2; [L53] SORT_1 input_2; [L54] SORT_1 input_3; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L56] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L58] SORT_4 init_7_arg_1 = var_5; [L59] state_6 = init_7_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L62] input_2 = __VERIFIER_nondet_uchar() [L63] input_3 = __VERIFIER_nondet_uchar() [L64] EXPR input_3 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L64] input_3 = input_3 & mask_SORT_1 [L67] SORT_4 var_9_arg_0 = state_6; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0, var_9_arg_0=0] [L68] EXPR var_9_arg_0 & mask_SORT_4 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L68] var_9_arg_0 = var_9_arg_0 & mask_SORT_4 [L69] SORT_8 var_9 = var_9_arg_0; [L70] SORT_8 var_11_arg_0 = var_9; [L71] SORT_8 var_11_arg_1 = var_10; [L72] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L73] SORT_4 var_12_arg_0 = state_6; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_11=1, var_12_arg_0=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L74] EXPR var_12_arg_0 & mask_SORT_4 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_11=1, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L74] var_12_arg_0 = var_12_arg_0 & mask_SORT_4 [L75] SORT_8 var_12 = var_12_arg_0; [L76] SORT_8 var_14_arg_0 = var_12; [L77] SORT_8 var_14_arg_1 = var_13; [L78] SORT_1 var_14 = var_14_arg_0 == var_14_arg_1; [L79] SORT_1 var_15_arg_0 = var_11; [L80] SORT_1 var_15_arg_1 = var_14; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_15_arg_0=1, var_15_arg_1=0, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L81] EXPR var_15_arg_0 | var_15_arg_1 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L81] SORT_1 var_15 = var_15_arg_0 | var_15_arg_1; [L82] SORT_4 var_16_arg_0 = state_6; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_15=1, var_16_arg_0=0, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L83] EXPR var_16_arg_0 & mask_SORT_4 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_15=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L83] var_16_arg_0 = var_16_arg_0 & mask_SORT_4 [L84] SORT_8 var_16 = var_16_arg_0; [L85] SORT_8 var_18_arg_0 = var_16; [L86] SORT_8 var_18_arg_1 = var_17; [L87] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L88] SORT_1 var_19_arg_0 = var_15; [L89] SORT_1 var_19_arg_1 = var_18; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_19_arg_0=1, var_19_arg_1=0, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L90] EXPR var_19_arg_0 | var_19_arg_1 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L90] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L91] SORT_4 var_20_arg_0 = state_6; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_19=1, var_20_arg_0=0, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L92] EXPR var_20_arg_0 & mask_SORT_4 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_19=1, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L92] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L93] SORT_8 var_20 = var_20_arg_0; [L94] SORT_8 var_22_arg_0 = var_20; [L95] SORT_8 var_22_arg_1 = var_21; [L96] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L97] SORT_1 var_23_arg_0 = var_19; [L98] SORT_1 var_23_arg_1 = var_22; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_23_arg_0=1, var_23_arg_1=0, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L99] EXPR var_23_arg_0 | var_23_arg_1 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L99] SORT_1 var_23 = var_23_arg_0 | var_23_arg_1; [L100] SORT_4 var_24_arg_0 = state_6; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_23=1, var_24_arg_0=0, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L101] EXPR var_24_arg_0 & mask_SORT_4 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_23=1, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L101] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L102] SORT_8 var_24 = var_24_arg_0; [L103] SORT_8 var_26_arg_0 = var_24; [L104] SORT_8 var_26_arg_1 = var_25; [L105] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L106] SORT_1 var_27_arg_0 = var_23; [L107] SORT_1 var_27_arg_1 = var_26; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_27_arg_0=1, var_27_arg_1=0, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L108] EXPR var_27_arg_0 | var_27_arg_1 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L108] SORT_1 var_27 = var_27_arg_0 | var_27_arg_1; [L109] SORT_1 var_31_arg_0 = var_27; [L110] SORT_1 var_31 = ~var_31_arg_0; [L111] SORT_1 var_32_arg_0 = var_30; [L112] SORT_1 var_32_arg_1 = var_31; VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_32_arg_0=1, var_32_arg_1=-2, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L113] EXPR var_32_arg_0 & var_32_arg_1 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L113] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; [L114] EXPR var_32 & mask_SORT_1 VAL [input_3=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_50=2, var_5=0] [L114] var_32 = var_32 & mask_SORT_1 [L115] SORT_1 bad_33_arg_0 = var_32; [L116] CALL __VERIFIER_assert(!(bad_33_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.8s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1984 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1984 mSDsluCounter, 8115 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6630 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1287 IncrementalHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1485 mSDtfsCounter, 1287 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=13, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 296 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 1467 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:00:44,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX --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 827228a8fb731d7038bb1b8c7cce3c35edda9a5c3ee552084966688fbdc104d2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:00:47,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:00:47,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-08 18:00:47,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:00:47,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:00:47,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:00:47,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:00:47,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:00:47,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:00:47,548 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:00:47,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:00:47,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:00:47,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:00:47,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:00:47,557 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:00:47,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:00:47,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:00:47,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:00:47,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:00:47,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:00:47,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:00:47,560 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:00:47,560 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:00:47,561 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:00:47,561 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:00:47,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:00:47,562 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:00:47,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:00:47,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:00:47,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:00:47,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:00:47,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:00:47,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:00:47,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:00:47,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:00:47,566 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:00:47,567 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:00:47,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:00:47,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:00:47,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:00:47,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:00:47,569 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 827228a8fb731d7038bb1b8c7cce3c35edda9a5c3ee552084966688fbdc104d2 [2024-11-08 18:00:48,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:00:48,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:00:48,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:00:48,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:00:48,140 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:00:48,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c Unable to find full path for "g++" [2024-11-08 18:00:50,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:00:51,057 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:00:51,060 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c [2024-11-08 18:00:51,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/data/6ebe4f8ce/2ef26791945a4193b8900351bd212375/FLAGe192ab5e8 [2024-11-08 18:00:51,271 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/data/6ebe4f8ce/2ef26791945a4193b8900351bd212375 [2024-11-08 18:00:51,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:00:51,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:00:51,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:00:51,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:00:51,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:00:51,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:51,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47898f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51, skipping insertion in model container [2024-11-08 18:00:51,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:51,335 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:00:51,608 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_f640612a-fe73-4638-9237-b310c6d951f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c[1250,1263] [2024-11-08 18:00:51,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:00:51,748 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:00:51,762 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_f640612a-fe73-4638-9237-b310c6d951f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c[1250,1263] [2024-11-08 18:00:51,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:00:51,875 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:00:51,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51 WrapperNode [2024-11-08 18:00:51,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:00:51,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:00:51,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:00:51,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:00:51,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:51,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:51,949 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 165 [2024-11-08 18:00:51,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:00:51,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:00:51,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:00:51,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:00:51,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:51,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:51,981 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:52,015 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:00:52,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:52,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:52,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:52,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:52,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:52,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:52,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:00:52,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:00:52,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:00:52,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:00:52,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (1/1) ... [2024-11-08 18:00:52,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:00:52,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:52,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:00:52,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:00:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:00:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:00:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:00:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:00:52,398 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:00:52,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:00:52,846 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-08 18:00:52,847 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:00:52,867 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:00:52,870 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:00:52,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:00:52 BoogieIcfgContainer [2024-11-08 18:00:52,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:00:52,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:00:52,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:00:52,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:00:52,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:00:51" (1/3) ... [2024-11-08 18:00:52,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1bdc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:00:52, skipping insertion in model container [2024-11-08 18:00:52,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:00:51" (2/3) ... [2024-11-08 18:00:52,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1bdc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:00:52, skipping insertion in model container [2024-11-08 18:00:52,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:00:52" (3/3) ... [2024-11-08 18:00:52,887 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_segments.c [2024-11-08 18:00:52,910 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:00:52,912 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:00:53,005 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:00:53,014 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;@393bbea9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:00:53,015 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:00:53,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-08 18:00:53,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 18:00:53,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:53,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 18:00:53,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:53,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:53,040 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2024-11-08 18:00:53,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:00:53,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453799304] [2024-11-08 18:00:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:53,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:53,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:53,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:53,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:00:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:53,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:00:53,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:53,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:00:53,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:00:53,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453799304] [2024-11-08 18:00:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453799304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:53,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:53,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:00:53,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426162147] [2024-11-08 18:00:53,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:53,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:00:53,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:00:53,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:00:53,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:00:53,708 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-08 18:00:53,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:53,792 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2024-11-08 18:00:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:00:53,796 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 [2024-11-08 18:00:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:53,806 INFO L225 Difference]: With dead ends: 19 [2024-11-08 18:00:53,806 INFO L226 Difference]: Without dead ends: 10 [2024-11-08 18:00:53,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:00:53,817 INFO L432 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 [2024-11-08 18:00:53,818 INFO L433 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] [2024-11-08 18:00:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-08 18:00:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-08 18:00:53,858 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) [2024-11-08 18:00:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-08 18:00:53,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-08 18:00:53,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:53,862 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-08 18:00:53,863 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) [2024-11-08 18:00:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-08 18:00:53,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 18:00:53,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:53,864 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:53,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:00:54,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:54,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:00:54,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:54,070 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2024-11-08 18:00:54,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:00:54,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332974056] [2024-11-08 18:00:54,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:54,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:54,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:54,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:54,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:00:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:54,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-08 18:00:54,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:56,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:56,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:01:32,478 WARN L286 SmtUtils]: Spent 12.62s on a formula simplification that was a NOOP. DAG size: 509 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 18:02:13,991 WARN L286 SmtUtils]: Spent 12.22s on a formula simplification that was a NOOP. DAG size: 512 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 18:02:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:02:40,421 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:02:40,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332974056] [2024-11-08 18:02:40,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332974056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:02:40,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:02:40,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-08 18:02:40,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908296816] [2024-11-08 18:02:40,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:02:40,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:02:40,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:02:40,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:02:40,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:02:40,430 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) [2024-11-08 18:02:40,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:40,743 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-08 18:02:40,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:02:40,744 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 [2024-11-08 18:02:40,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:40,747 INFO L225 Difference]: With dead ends: 15 [2024-11-08 18:02:40,747 INFO L226 Difference]: Without dead ends: 13 [2024-11-08 18:02:40,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:02:40,749 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:40,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:02:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-08 18:02:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-08 18:02:40,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-08 18:02:40,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-08 18:02:40,758 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-08 18:02:40,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:40,759 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-08 18:02:40,760 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) [2024-11-08 18:02:40,761 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-08 18:02:40,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:02:40,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:40,763 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-08 18:02:40,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:02:40,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:02:40,969 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:02:40,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:40,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2024-11-08 18:02:40,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:02:40,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529037764] [2024-11-08 18:02:40,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:02:40,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:02:40,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:02:40,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:02:40,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f640612a-fe73-4638-9237-b310c6d951f4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:02:41,239 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:02:41,239 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:02:41,247 WARN L253 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 107 conjuncts are in the unsatisfiable core [2024-11-08 18:02:41,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:45,270 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:02:45,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:49,198 WARN L286 SmtUtils]: Spent 41.82s on a formula simplification that was a NOOP. DAG size: 622 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 18:08:41,265 WARN L286 SmtUtils]: Spent 39.56s on a formula simplification that was a NOOP. DAG size: 625 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)