./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme --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 927306cfdb34082f032dbe87a24c6d688e2dda4e8fb165835d54bffc8f03e27e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:48:53,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:48:53,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 11:48:53,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:48:53,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:48:53,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:48:53,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:48:53,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:48:53,969 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:48:53,974 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:48:53,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:48:53,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:48:53,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:48:53,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:48:53,979 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:48:53,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:48:53,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:48:53,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:48:53,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:48:53,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:48:53,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:48:53,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:48:53,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:48:53,985 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:48:53,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:48:53,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:48:53,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:48:53,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:48:53,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:53,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:48:53,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:48:53,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:48:53,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:48:53,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:48:53,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:48:53,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:48:53,989 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:48:53,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:48:53,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:48:53,990 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_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 927306cfdb34082f032dbe87a24c6d688e2dda4e8fb165835d54bffc8f03e27e [2023-11-26 11:48:54,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:48:54,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:48:54,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:48:54,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:48:54,398 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:48:54,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2023-11-26 11:48:57,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:48:57,896 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:48:57,897 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2023-11-26 11:48:57,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/data/c9cdb588f/d2abdafd25c7416c8ef523786fe79990/FLAG93a2e498f [2023-11-26 11:48:57,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/data/c9cdb588f/d2abdafd25c7416c8ef523786fe79990 [2023-11-26 11:48:57,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:48:57,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:48:57,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:57,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:48:57,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:48:57,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:57" (1/1) ... [2023-11-26 11:48:57,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c21132f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:57, skipping insertion in model container [2023-11-26 11:48:57,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:57" (1/1) ... [2023-11-26 11:48:58,000 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:48:58,207 WARN L240 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_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1250,1263] [2023-11-26 11:48:58,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:48:58,313 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:48:58,327 WARN L240 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_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1250,1263] [2023-11-26 11:48:58,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:48:58,393 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:48:58,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58 WrapperNode [2023-11-26 11:48:58,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:58,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:48:58,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:48:58,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:48:58,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,521 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 325 [2023-11-26 11:48:58,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:48:58,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:48:58,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:48:58,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:48:58,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,569 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]. [2023-11-26 11:48:58,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:48:58,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:48:58,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:48:58,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:48:58,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (1/1) ... [2023-11-26 11:48:58,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:58,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:58,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:48:58,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:48:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:48:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:48:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:48:58,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:48:58,871 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:48:58,877 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:48:59,490 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:48:59,517 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:48:59,517 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:48:59,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:59 BoogieIcfgContainer [2023-11-26 11:48:59,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:48:59,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:48:59,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:48:59,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:48:59,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:48:57" (1/3) ... [2023-11-26 11:48:59,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e1fa35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:48:59, skipping insertion in model container [2023-11-26 11:48:59,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:58" (2/3) ... [2023-11-26 11:48:59,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e1fa35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:48:59, skipping insertion in model container [2023-11-26 11:48:59,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:59" (3/3) ... [2023-11-26 11:48:59,526 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal_v.c [2023-11-26 11:48:59,547 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:48:59,547 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:48:59,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:48:59,616 INFO L357 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, mHoare=true, 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;@19f5791d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:48:59,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:48:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 59 states have internal predecessors, (96), 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) [2023-11-26 11:48:59,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 11:48:59,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:59,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:59,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:59,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:59,634 INFO L85 PathProgramCache]: Analyzing trace with hash 3492088, now seen corresponding path program 1 times [2023-11-26 11:48:59,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:59,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633822690] [2023-11-26 11:48:59,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:59,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:00,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:00,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633822690] [2023-11-26 11:49:00,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633822690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:00,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:00,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:49:00,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754425770] [2023-11-26 11:49:00,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:00,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:49:00,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:00,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:49:00,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:49:00,247 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 59 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-26 11:49:00,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:00,313 INFO L93 Difference]: Finished difference Result 113 states and 183 transitions. [2023-11-26 11:49:00,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:49:00,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) Word has length 12 [2023-11-26 11:49:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:00,330 INFO L225 Difference]: With dead ends: 113 [2023-11-26 11:49:00,330 INFO L226 Difference]: Without dead ends: 60 [2023-11-26 11:49:00,333 INFO L412 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 [2023-11-26 11:49:00,340 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:00,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 262 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:00,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-26 11:49:00,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-26 11:49:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 59 states have internal predecessors, (94), 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) [2023-11-26 11:49:00,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 94 transitions. [2023-11-26 11:49:00,382 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 94 transitions. Word has length 12 [2023-11-26 11:49:00,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:00,382 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 94 transitions. [2023-11-26 11:49:00,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-26 11:49:00,383 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 94 transitions. [2023-11-26 11:49:00,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 11:49:00,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:00,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:00,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:49:00,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:00,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash 109979724, now seen corresponding path program 1 times [2023-11-26 11:49:00,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:00,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702513268] [2023-11-26 11:49:00,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:00,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:00,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:00,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702513268] [2023-11-26 11:49:00,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702513268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:00,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:00,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:49:00,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521886401] [2023-11-26 11:49:00,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:00,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:49:00,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:00,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:49:00,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:49:00,565 INFO L87 Difference]: Start difference. First operand 60 states and 94 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2023-11-26 11:49:00,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:00,597 INFO L93 Difference]: Finished difference Result 116 states and 181 transitions. [2023-11-26 11:49:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:49:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 13 [2023-11-26 11:49:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:00,602 INFO L225 Difference]: With dead ends: 116 [2023-11-26 11:49:00,603 INFO L226 Difference]: Without dead ends: 63 [2023-11-26 11:49:00,604 INFO L412 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 [2023-11-26 11:49:00,606 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 260 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 [2023-11-26 11:49:00,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 260 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:00,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-26 11:49:00,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2023-11-26 11:49:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 61 states have internal predecessors, (96), 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) [2023-11-26 11:49:00,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions. [2023-11-26 11:49:00,624 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 13 [2023-11-26 11:49:00,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:00,624 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 96 transitions. [2023-11-26 11:49:00,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2023-11-26 11:49:00,625 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions. [2023-11-26 11:49:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 11:49:00,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:00,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:00,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:49:00,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:00,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:00,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1096028270, now seen corresponding path program 1 times [2023-11-26 11:49:00,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:00,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717005727] [2023-11-26 11:49:00,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:00,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:00,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:00,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717005727] [2023-11-26 11:49:00,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717005727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:00,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:00,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:49:00,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099390894] [2023-11-26 11:49:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:00,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:49:00,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:00,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:49:00,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:49:00,933 INFO L87 Difference]: Start difference. First operand 62 states and 96 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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) [2023-11-26 11:49:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:01,098 INFO L93 Difference]: Finished difference Result 165 states and 256 transitions. [2023-11-26 11:49:01,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:49:01,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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 14 [2023-11-26 11:49:01,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:01,105 INFO L225 Difference]: With dead ends: 165 [2023-11-26 11:49:01,105 INFO L226 Difference]: Without dead ends: 110 [2023-11-26 11:49:01,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:01,110 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 306 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:01,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 245 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:01,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-26 11:49:01,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 64. [2023-11-26 11:49:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.5555555555555556) internal successors, (98), 63 states have internal predecessors, (98), 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) [2023-11-26 11:49:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 98 transitions. [2023-11-26 11:49:01,127 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 98 transitions. Word has length 14 [2023-11-26 11:49:01,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:01,127 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 98 transitions. [2023-11-26 11:49:01,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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) [2023-11-26 11:49:01,128 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 98 transitions. [2023-11-26 11:49:01,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 11:49:01,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:01,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:01,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:49:01,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:01,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:01,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1627807962, now seen corresponding path program 1 times [2023-11-26 11:49:01,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:01,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173917788] [2023-11-26 11:49:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:01,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:01,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:01,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:01,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173917788] [2023-11-26 11:49:01,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173917788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:01,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:01,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:49:01,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153377115] [2023-11-26 11:49:01,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:01,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:49:01,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:01,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:49:01,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:49:01,733 INFO L87 Difference]: Start difference. First operand 64 states and 98 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-26 11:49:01,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:01,836 INFO L93 Difference]: Finished difference Result 119 states and 183 transitions. [2023-11-26 11:49:01,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:49:01,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2023-11-26 11:49:01,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:01,840 INFO L225 Difference]: With dead ends: 119 [2023-11-26 11:49:01,840 INFO L226 Difference]: Without dead ends: 64 [2023-11-26 11:49:01,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:49:01,850 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 79 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:01,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 127 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:01,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-26 11:49:01,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-26 11:49:01,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.5396825396825398) internal successors, (97), 63 states have internal predecessors, (97), 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) [2023-11-26 11:49:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 97 transitions. [2023-11-26 11:49:01,869 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 97 transitions. Word has length 49 [2023-11-26 11:49:01,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:01,870 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 97 transitions. [2023-11-26 11:49:01,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-26 11:49:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 97 transitions. [2023-11-26 11:49:01,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-26 11:49:01,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:01,874 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:01,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:49:01,874 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:01,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:01,875 INFO L85 PathProgramCache]: Analyzing trace with hash -102537090, now seen corresponding path program 1 times [2023-11-26 11:49:01,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:01,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434161783] [2023-11-26 11:49:01,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:01,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:02,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:02,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434161783] [2023-11-26 11:49:02,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434161783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:02,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:02,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:49:02,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39776536] [2023-11-26 11:49:02,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:02,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:02,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:02,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:02,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:02,265 INFO L87 Difference]: Start difference. First operand 64 states and 97 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-26 11:49:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:02,459 INFO L93 Difference]: Finished difference Result 164 states and 251 transitions. [2023-11-26 11:49:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:49:02,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2023-11-26 11:49:02,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:02,461 INFO L225 Difference]: With dead ends: 164 [2023-11-26 11:49:02,461 INFO L226 Difference]: Without dead ends: 109 [2023-11-26 11:49:02,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:49:02,463 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 216 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:02,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 260 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-26 11:49:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 81. [2023-11-26 11:49:02,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 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) [2023-11-26 11:49:02,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 120 transitions. [2023-11-26 11:49:02,471 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 120 transitions. Word has length 50 [2023-11-26 11:49:02,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:02,472 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 120 transitions. [2023-11-26 11:49:02,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-26 11:49:02,472 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 120 transitions. [2023-11-26 11:49:02,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 11:49:02,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:02,474 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:02,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:49:02,474 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:02,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:02,475 INFO L85 PathProgramCache]: Analyzing trace with hash 930407213, now seen corresponding path program 1 times [2023-11-26 11:49:02,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:02,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822383584] [2023-11-26 11:49:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:02,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:02,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:02,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822383584] [2023-11-26 11:49:02,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822383584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:02,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:02,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:49:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485948109] [2023-11-26 11:49:02,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:02,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:49:02,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:02,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:49:02,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:49:02,869 INFO L87 Difference]: Start difference. First operand 81 states and 120 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:03,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:03,048 INFO L93 Difference]: Finished difference Result 164 states and 250 transitions. [2023-11-26 11:49:03,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:49:03,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-11-26 11:49:03,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:03,050 INFO L225 Difference]: With dead ends: 164 [2023-11-26 11:49:03,050 INFO L226 Difference]: Without dead ends: 109 [2023-11-26 11:49:03,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:49:03,051 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 212 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:03,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 171 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-26 11:49:03,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 82. [2023-11-26 11:49:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.4938271604938271) internal successors, (121), 81 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) [2023-11-26 11:49:03,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 121 transitions. [2023-11-26 11:49:03,059 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 121 transitions. Word has length 51 [2023-11-26 11:49:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:03,060 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 121 transitions. [2023-11-26 11:49:03,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 121 transitions. [2023-11-26 11:49:03,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 11:49:03,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:03,062 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:03,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:49:03,063 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:03,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1978356689, now seen corresponding path program 1 times [2023-11-26 11:49:03,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:03,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534038714] [2023-11-26 11:49:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:03,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:03,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:03,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534038714] [2023-11-26 11:49:03,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534038714] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:03,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862425319] [2023-11-26 11:49:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:03,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:03,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:03,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:03,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:49:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:03,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-26 11:49:03,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:04,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:04,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862425319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:04,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:49:04,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2023-11-26 11:49:04,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406992188] [2023-11-26 11:49:04,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:04,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:49:04,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:04,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:49:04,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:49:04,584 INFO L87 Difference]: Start difference. First operand 82 states and 121 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:05,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:05,320 INFO L93 Difference]: Finished difference Result 235 states and 355 transitions. [2023-11-26 11:49:05,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:49:05,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-11-26 11:49:05,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:05,322 INFO L225 Difference]: With dead ends: 235 [2023-11-26 11:49:05,322 INFO L226 Difference]: Without dead ends: 180 [2023-11-26 11:49:05,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2023-11-26 11:49:05,324 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 534 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:05,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 397 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:49:05,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-26 11:49:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 90. [2023-11-26 11:49:05,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.4719101123595506) internal successors, (131), 89 states have internal predecessors, (131), 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) [2023-11-26 11:49:05,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 131 transitions. [2023-11-26 11:49:05,337 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 131 transitions. Word has length 51 [2023-11-26 11:49:05,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:05,338 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 131 transitions. [2023-11-26 11:49:05,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:05,338 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2023-11-26 11:49:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-26 11:49:05,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:05,345 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:05,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:05,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:05,553 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:05,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:05,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2109207099, now seen corresponding path program 1 times [2023-11-26 11:49:05,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:05,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999366471] [2023-11-26 11:49:05,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:05,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:06,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:06,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999366471] [2023-11-26 11:49:06,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999366471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:06,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:06,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:49:06,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411708358] [2023-11-26 11:49:06,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:06,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:49:06,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:06,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:49:06,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:06,210 INFO L87 Difference]: Start difference. First operand 90 states and 131 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:06,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:06,712 INFO L93 Difference]: Finished difference Result 256 states and 382 transitions. [2023-11-26 11:49:06,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:49:06,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-11-26 11:49:06,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:06,719 INFO L225 Difference]: With dead ends: 256 [2023-11-26 11:49:06,719 INFO L226 Difference]: Without dead ends: 201 [2023-11-26 11:49:06,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:49:06,723 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 352 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:06,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 663 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:49:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-26 11:49:06,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 130. [2023-11-26 11:49:06,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4728682170542635) internal successors, (190), 129 states have internal predecessors, (190), 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) [2023-11-26 11:49:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 190 transitions. [2023-11-26 11:49:06,739 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 190 transitions. Word has length 52 [2023-11-26 11:49:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:06,740 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 190 transitions. [2023-11-26 11:49:06,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 190 transitions. [2023-11-26 11:49:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-26 11:49:06,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:06,743 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:06,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:49:06,743 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:06,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash 513429857, now seen corresponding path program 1 times [2023-11-26 11:49:06,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:06,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485166870] [2023-11-26 11:49:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:06,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:07,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:07,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485166870] [2023-11-26 11:49:07,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485166870] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:07,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792542995] [2023-11-26 11:49:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:07,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:07,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:07,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:07,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:49:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:07,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-26 11:49:07,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:08,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:08,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792542995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:08,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:49:08,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 16 [2023-11-26 11:49:08,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456301431] [2023-11-26 11:49:08,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:08,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:49:08,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:08,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:49:08,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:49:08,335 INFO L87 Difference]: Start difference. First operand 130 states and 190 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:08,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:08,969 INFO L93 Difference]: Finished difference Result 211 states and 313 transitions. [2023-11-26 11:49:08,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:49:08,970 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-11-26 11:49:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:08,971 INFO L225 Difference]: With dead ends: 211 [2023-11-26 11:49:08,972 INFO L226 Difference]: Without dead ends: 156 [2023-11-26 11:49:08,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2023-11-26 11:49:08,973 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 245 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:08,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 354 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:49:08,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-26 11:49:08,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 140. [2023-11-26 11:49:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.4676258992805755) internal successors, (204), 139 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) [2023-11-26 11:49:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 204 transitions. [2023-11-26 11:49:08,986 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 204 transitions. Word has length 52 [2023-11-26 11:49:08,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:08,987 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 204 transitions. [2023-11-26 11:49:08,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:08,991 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 204 transitions. [2023-11-26 11:49:08,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-26 11:49:08,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:08,992 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:09,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 11:49:09,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:09,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:09,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:09,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1156070035, now seen corresponding path program 1 times [2023-11-26 11:49:09,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:09,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355792430] [2023-11-26 11:49:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:09,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:09,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:09,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355792430] [2023-11-26 11:49:09,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355792430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:09,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:09,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:49:09,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933433371] [2023-11-26 11:49:09,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:09,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:09,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:09,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:09,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:09,875 INFO L87 Difference]: Start difference. First operand 140 states and 204 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:10,047 INFO L93 Difference]: Finished difference Result 203 states and 299 transitions. [2023-11-26 11:49:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:49:10,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-26 11:49:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:10,050 INFO L225 Difference]: With dead ends: 203 [2023-11-26 11:49:10,050 INFO L226 Difference]: Without dead ends: 146 [2023-11-26 11:49:10,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:10,051 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 139 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:10,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 367 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:10,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-26 11:49:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2023-11-26 11:49:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.4642857142857142) internal successors, (205), 140 states have internal predecessors, (205), 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) [2023-11-26 11:49:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 205 transitions. [2023-11-26 11:49:10,059 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 205 transitions. Word has length 53 [2023-11-26 11:49:10,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:10,060 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 205 transitions. [2023-11-26 11:49:10,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 205 transitions. [2023-11-26 11:49:10,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-26 11:49:10,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:10,061 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:10,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:49:10,062 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:10,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:10,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1742876049, now seen corresponding path program 1 times [2023-11-26 11:49:10,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:10,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102499019] [2023-11-26 11:49:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:10,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:10,578 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:10,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:10,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102499019] [2023-11-26 11:49:10,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102499019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:10,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:10,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:49:10,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694694870] [2023-11-26 11:49:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:10,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:10,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:10,582 INFO L87 Difference]: Start difference. First operand 141 states and 205 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:10,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:10,596 INFO L93 Difference]: Finished difference Result 199 states and 292 transitions. [2023-11-26 11:49:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:10,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-26 11:49:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:10,599 INFO L225 Difference]: With dead ends: 199 [2023-11-26 11:49:10,599 INFO L226 Difference]: Without dead ends: 141 [2023-11-26 11:49:10,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:10,600 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 78 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:10,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 203 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:10,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-26 11:49:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-11-26 11:49:10,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.4357142857142857) internal successors, (201), 140 states have internal predecessors, (201), 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) [2023-11-26 11:49:10,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 201 transitions. [2023-11-26 11:49:10,607 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 201 transitions. Word has length 53 [2023-11-26 11:49:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:10,608 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 201 transitions. [2023-11-26 11:49:10,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 201 transitions. [2023-11-26 11:49:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 11:49:10,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:10,612 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:10,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:49:10,613 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:10,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2128258193, now seen corresponding path program 1 times [2023-11-26 11:49:10,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:10,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508661749] [2023-11-26 11:49:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:10,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:11,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:11,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508661749] [2023-11-26 11:49:11,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508661749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:11,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:11,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:49:11,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168070309] [2023-11-26 11:49:11,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:11,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:11,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:11,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:11,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:11,086 INFO L87 Difference]: Start difference. First operand 141 states and 201 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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) [2023-11-26 11:49:11,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:11,232 INFO L93 Difference]: Finished difference Result 371 states and 529 transitions. [2023-11-26 11:49:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:11,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2023-11-26 11:49:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:11,235 INFO L225 Difference]: With dead ends: 371 [2023-11-26 11:49:11,235 INFO L226 Difference]: Without dead ends: 259 [2023-11-26 11:49:11,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:49:11,237 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 212 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:11,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 367 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:11,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-26 11:49:11,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 147. [2023-11-26 11:49:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.417808219178082) internal successors, (207), 146 states have internal predecessors, (207), 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) [2023-11-26 11:49:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 207 transitions. [2023-11-26 11:49:11,246 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 207 transitions. Word has length 54 [2023-11-26 11:49:11,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:11,246 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 207 transitions. [2023-11-26 11:49:11,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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) [2023-11-26 11:49:11,247 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 207 transitions. [2023-11-26 11:49:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 11:49:11,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:11,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:11,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:49:11,248 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:11,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1284252691, now seen corresponding path program 1 times [2023-11-26 11:49:11,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:11,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302307972] [2023-11-26 11:49:11,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:11,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:12,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:12,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302307972] [2023-11-26 11:49:12,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302307972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:12,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:12,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:49:12,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426946705] [2023-11-26 11:49:12,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:12,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:49:12,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:12,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:49:12,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:12,348 INFO L87 Difference]: Start difference. First operand 147 states and 207 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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) [2023-11-26 11:49:12,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:12,901 INFO L93 Difference]: Finished difference Result 279 states and 399 transitions. [2023-11-26 11:49:12,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:49:12,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2023-11-26 11:49:12,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:12,903 INFO L225 Difference]: With dead ends: 279 [2023-11-26 11:49:12,904 INFO L226 Difference]: Without dead ends: 217 [2023-11-26 11:49:12,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:49:12,905 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 431 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:12,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 511 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:49:12,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-26 11:49:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 146. [2023-11-26 11:49:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4206896551724137) internal successors, (206), 145 states have internal predecessors, (206), 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) [2023-11-26 11:49:12,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 206 transitions. [2023-11-26 11:49:12,916 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 206 transitions. Word has length 54 [2023-11-26 11:49:12,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:12,916 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 206 transitions. [2023-11-26 11:49:12,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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) [2023-11-26 11:49:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 206 transitions. [2023-11-26 11:49:12,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 11:49:12,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:12,918 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:12,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:49:12,918 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:12,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:12,919 INFO L85 PathProgramCache]: Analyzing trace with hash 495091499, now seen corresponding path program 1 times [2023-11-26 11:49:12,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:12,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348927932] [2023-11-26 11:49:12,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:12,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:13,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:13,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348927932] [2023-11-26 11:49:13,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348927932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:13,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:13,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:49:13,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336708506] [2023-11-26 11:49:13,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:13,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:13,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:13,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:13,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:13,466 INFO L87 Difference]: Start difference. First operand 146 states and 206 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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) [2023-11-26 11:49:13,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:13,623 INFO L93 Difference]: Finished difference Result 206 states and 294 transitions. [2023-11-26 11:49:13,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:49:13,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2023-11-26 11:49:13,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:13,625 INFO L225 Difference]: With dead ends: 206 [2023-11-26 11:49:13,625 INFO L226 Difference]: Without dead ends: 146 [2023-11-26 11:49:13,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:13,626 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 126 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:13,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 367 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:13,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-26 11:49:13,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2023-11-26 11:49:13,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.4225352112676057) internal successors, (202), 142 states have internal predecessors, (202), 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) [2023-11-26 11:49:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 202 transitions. [2023-11-26 11:49:13,633 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 202 transitions. Word has length 54 [2023-11-26 11:49:13,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:13,634 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 202 transitions. [2023-11-26 11:49:13,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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) [2023-11-26 11:49:13,634 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 202 transitions. [2023-11-26 11:49:13,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 11:49:13,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:13,637 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:13,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:49:13,638 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:13,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:13,638 INFO L85 PathProgramCache]: Analyzing trace with hash -91714515, now seen corresponding path program 1 times [2023-11-26 11:49:13,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:13,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78937414] [2023-11-26 11:49:13,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:13,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:14,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:14,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78937414] [2023-11-26 11:49:14,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78937414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:14,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:14,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:49:14,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730067100] [2023-11-26 11:49:14,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:14,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:49:14,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:14,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:49:14,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:14,404 INFO L87 Difference]: Start difference. First operand 143 states and 202 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2023-11-26 11:49:14,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:14,782 INFO L93 Difference]: Finished difference Result 455 states and 655 transitions. [2023-11-26 11:49:14,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 11:49:14,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 54 [2023-11-26 11:49:14,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:14,786 INFO L225 Difference]: With dead ends: 455 [2023-11-26 11:49:14,786 INFO L226 Difference]: Without dead ends: 396 [2023-11-26 11:49:14,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:49:14,789 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 364 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:14,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 858 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:49:14,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-26 11:49:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 181. [2023-11-26 11:49:14,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.4222222222222223) internal successors, (256), 180 states have internal predecessors, (256), 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) [2023-11-26 11:49:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 256 transitions. [2023-11-26 11:49:14,802 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 256 transitions. Word has length 54 [2023-11-26 11:49:14,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:14,803 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 256 transitions. [2023-11-26 11:49:14,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2023-11-26 11:49:14,804 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 256 transitions. [2023-11-26 11:49:14,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 11:49:14,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:14,808 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:14,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:49:14,808 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:14,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash 492564655, now seen corresponding path program 1 times [2023-11-26 11:49:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:14,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991585181] [2023-11-26 11:49:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:14,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:15,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:15,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991585181] [2023-11-26 11:49:15,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991585181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:15,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:15,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:49:15,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426990506] [2023-11-26 11:49:15,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:15,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:49:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:15,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:49:15,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:49:15,299 INFO L87 Difference]: Start difference. First operand 181 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-26 11:49:15,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:15,416 INFO L93 Difference]: Finished difference Result 328 states and 463 transitions. [2023-11-26 11:49:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:49:15,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2023-11-26 11:49:15,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:15,419 INFO L225 Difference]: With dead ends: 328 [2023-11-26 11:49:15,419 INFO L226 Difference]: Without dead ends: 197 [2023-11-26 11:49:15,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:15,421 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 296 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:15,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 262 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:15,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-26 11:49:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 135. [2023-11-26 11:49:15,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.4179104477611941) internal successors, (190), 134 states have internal predecessors, (190), 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) [2023-11-26 11:49:15,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 190 transitions. [2023-11-26 11:49:15,435 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 190 transitions. Word has length 54 [2023-11-26 11:49:15,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:15,436 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 190 transitions. [2023-11-26 11:49:15,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-26 11:49:15,436 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 190 transitions. [2023-11-26 11:49:15,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 11:49:15,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:15,437 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:15,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:49:15,438 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:15,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:15,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2045819117, now seen corresponding path program 1 times [2023-11-26 11:49:15,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:15,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51016758] [2023-11-26 11:49:15,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:15,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:16,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:16,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:16,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51016758] [2023-11-26 11:49:16,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51016758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:16,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:16,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:49:16,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008155708] [2023-11-26 11:49:16,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:16,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:49:16,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:16,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:49:16,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:16,850 INFO L87 Difference]: Start difference. First operand 135 states and 190 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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) [2023-11-26 11:49:17,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:17,222 INFO L93 Difference]: Finished difference Result 271 states and 378 transitions. [2023-11-26 11:49:17,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:49:17,223 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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 55 [2023-11-26 11:49:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:17,224 INFO L225 Difference]: With dead ends: 271 [2023-11-26 11:49:17,224 INFO L226 Difference]: Without dead ends: 184 [2023-11-26 11:49:17,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:49:17,225 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 252 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:17,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 373 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:49:17,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-26 11:49:17,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 154. [2023-11-26 11:49:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.3856209150326797) internal successors, (212), 153 states have internal predecessors, (212), 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) [2023-11-26 11:49:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 212 transitions. [2023-11-26 11:49:17,238 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 212 transitions. Word has length 55 [2023-11-26 11:49:17,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:17,238 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 212 transitions. [2023-11-26 11:49:17,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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) [2023-11-26 11:49:17,239 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 212 transitions. [2023-11-26 11:49:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 11:49:17,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:17,240 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:17,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:49:17,240 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:17,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:17,241 INFO L85 PathProgramCache]: Analyzing trace with hash -458423687, now seen corresponding path program 1 times [2023-11-26 11:49:17,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:17,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600297409] [2023-11-26 11:49:17,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:17,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:18,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:18,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600297409] [2023-11-26 11:49:18,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600297409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:18,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:18,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:49:18,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259268507] [2023-11-26 11:49:18,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:18,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:49:18,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:18,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:49:18,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:49:18,410 INFO L87 Difference]: Start difference. First operand 154 states and 212 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) [2023-11-26 11:49:18,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:18,822 INFO L93 Difference]: Finished difference Result 271 states and 377 transitions. [2023-11-26 11:49:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:49:18,823 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2023-11-26 11:49:18,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:18,824 INFO L225 Difference]: With dead ends: 271 [2023-11-26 11:49:18,824 INFO L226 Difference]: Without dead ends: 184 [2023-11-26 11:49:18,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:49:18,825 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 268 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:18,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 282 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:49:18,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-26 11:49:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 155. [2023-11-26 11:49:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.3831168831168832) internal successors, (213), 154 states have internal predecessors, (213), 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) [2023-11-26 11:49:18,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2023-11-26 11:49:18,838 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 55 [2023-11-26 11:49:18,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:18,839 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2023-11-26 11:49:18,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) [2023-11-26 11:49:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2023-11-26 11:49:18,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 11:49:18,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:18,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:18,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:49:18,841 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:18,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2031105275, now seen corresponding path program 1 times [2023-11-26 11:49:18,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:18,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28146622] [2023-11-26 11:49:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:18,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:19,703 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:19,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:19,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28146622] [2023-11-26 11:49:19,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28146622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:19,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:19,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:49:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955986315] [2023-11-26 11:49:19,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:19,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:49:19,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:19,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:49:19,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:19,707 INFO L87 Difference]: Start difference. First operand 155 states and 213 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2023-11-26 11:49:20,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:20,049 INFO L93 Difference]: Finished difference Result 371 states and 524 transitions. [2023-11-26 11:49:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:49:20,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2023-11-26 11:49:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:20,051 INFO L225 Difference]: With dead ends: 371 [2023-11-26 11:49:20,051 INFO L226 Difference]: Without dead ends: 293 [2023-11-26 11:49:20,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:49:20,053 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 322 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:20,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 772 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:20,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-26 11:49:20,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 130. [2023-11-26 11:49:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.372093023255814) internal successors, (177), 129 states have internal predecessors, (177), 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) [2023-11-26 11:49:20,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2023-11-26 11:49:20,065 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 177 transitions. Word has length 55 [2023-11-26 11:49:20,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:20,065 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 177 transitions. [2023-11-26 11:49:20,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2023-11-26 11:49:20,065 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 177 transitions. [2023-11-26 11:49:20,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:49:20,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:20,066 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:20,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 11:49:20,067 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:20,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:20,067 INFO L85 PathProgramCache]: Analyzing trace with hash -866244129, now seen corresponding path program 1 times [2023-11-26 11:49:20,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:20,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126838991] [2023-11-26 11:49:20,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:20,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:49:20,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:49:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:49:20,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:49:20,447 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:49:20,448 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:49:20,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 11:49:20,453 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:20,458 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:49:20,520 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 11:49:20,521 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-26 11:49:20,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-26 11:49:20,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-26 11:49:20,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-26 11:49:20,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-26 11:49:20,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-26 11:49:20,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-26 11:49:20,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-26 11:49:20,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-26 11:49:20,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-26 11:49:20,556 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-26 11:49:20,559 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-26 11:49:20,560 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-11-26 11:49:20,561 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated [2023-11-26 11:49:20,563 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-26 11:49:20,564 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-26 11:49:20,565 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-26 11:49:20,566 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-26 11:49:20,568 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-26 11:49:20,570 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-26 11:49:20,572 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-26 11:49:20,573 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-26 11:49:20,573 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-26 11:49:20,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:49:20 BoogieIcfgContainer [2023-11-26 11:49:20,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:49:20,606 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:49:20,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:49:20,606 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:49:20,607 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:59" (3/4) ... [2023-11-26 11:49:20,609 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:49:20,610 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:49:20,611 INFO L158 Benchmark]: Toolchain (without parser) took 22671.30ms. Allocated memory was 172.0MB in the beginning and 390.1MB in the end (delta: 218.1MB). Free memory was 125.4MB in the beginning and 204.8MB in the end (delta: -79.3MB). Peak memory consumption was 139.9MB. Max. memory is 16.1GB. [2023-11-26 11:49:20,612 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 172.0MB. Free memory was 146.9MB in the beginning and 146.7MB in the end (delta: 163.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:20,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.51ms. Allocated memory is still 172.0MB. Free memory was 125.3MB in the beginning and 110.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 11:49:20,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.45ms. Allocated memory is still 172.0MB. Free memory was 110.7MB in the beginning and 103.6MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:49:20,613 INFO L158 Benchmark]: Boogie Preprocessor took 128.78ms. Allocated memory is still 172.0MB. Free memory was 103.6MB in the beginning and 98.7MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:49:20,613 INFO L158 Benchmark]: RCFGBuilder took 864.82ms. Allocated memory is still 172.0MB. Free memory was 98.7MB in the beginning and 108.4MB in the end (delta: -9.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-26 11:49:20,618 INFO L158 Benchmark]: TraceAbstraction took 21085.56ms. Allocated memory was 172.0MB in the beginning and 390.1MB in the end (delta: 218.1MB). Free memory was 107.3MB in the beginning and 204.8MB in the end (delta: -97.5MB). Peak memory consumption was 119.6MB. Max. memory is 16.1GB. [2023-11-26 11:49:20,619 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 390.1MB. Free memory is still 204.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:20,625 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 172.0MB. Free memory was 146.9MB in the beginning and 146.7MB in the end (delta: 163.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.51ms. Allocated memory is still 172.0MB. Free memory was 125.3MB in the beginning and 110.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.45ms. Allocated memory is still 172.0MB. Free memory was 110.7MB in the beginning and 103.6MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 128.78ms. Allocated memory is still 172.0MB. Free memory was 103.6MB in the beginning and 98.7MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 864.82ms. Allocated memory is still 172.0MB. Free memory was 98.7MB in the beginning and 108.4MB in the end (delta: -9.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 21085.56ms. Allocated memory was 172.0MB in the beginning and 390.1MB in the end (delta: 218.1MB). Free memory was 107.3MB in the beginning and 204.8MB in the end (delta: -97.5MB). Peak memory consumption was 119.6MB. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 390.1MB. Free memory is still 204.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 shiftRight at line 93, overapproximation of bitwiseOr at line 148, overapproximation of bitwiseAnd at line 161. 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 - 4); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L32] const SORT_28 mask_SORT_28 = (SORT_28)-1 >> (sizeof(SORT_28) * 8 - 32); [L33] const SORT_28 msb_SORT_28 = (SORT_28)1 << (32 - 1); [L35] const SORT_4 var_5 = 1; [L36] const SORT_4 var_8 = 0; [L37] const SORT_1 var_15 = 1; [L38] const SORT_4 var_22 = 15; [L39] const SORT_28 var_30 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L44] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, var_15=1, var_22=15, var_30=1, var_5=1, var_8=0] [L44] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=0, var_15=1, var_22=15, var_30=1, var_5=1, var_8=0] [L45] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L47] SORT_4 init_7_arg_1 = var_5; [L48] state_6 = init_7_arg_1 [L49] SORT_4 init_10_arg_1 = var_8; [L50] state_9 = init_10_arg_1 VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_15=1, var_22=15, var_30=1, var_5=1, var_8=0] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_5=1, var_8=0] [L66] EXPR var_17_arg_0 & var_17_arg_1 VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_5=1, var_8=0] [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] EXPR var_17 & mask_SORT_1 VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_5=1, var_8=0] [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L78] EXPR var_39_arg_0 & var_39_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] EXPR var_39 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29_arg_0=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L81] EXPR var_29_arg_0 & mask_SORT_4 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29_arg_0=15, var_30=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31_arg_0=15, var_31_arg_1=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L85] EXPR var_31_arg_0 >> var_31_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31_arg_0=15, var_31_arg_1=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33_arg_0=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L89] EXPR var_33_arg_0 & mask_SORT_4 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33_arg_0=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34_arg_0=1, var_34_arg_1=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L93] EXPR var_34_arg_0 >> var_34_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_22=15, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34_arg_0=1, var_34_arg_1=1, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24_arg_0=0, var_24_arg_1=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L110] EXPR var_24_arg_0 | var_24_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24_arg_0=0, var_24_arg_1=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] EXPR var_24 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_5=1, var_8=0] [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=2, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_5=1, var_8=0] [L127] EXPR var_40 & mask_SORT_4 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=2, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_5=1, var_8=0] [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L136] EXPR var_50_arg_0 & var_50_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] EXPR var_50 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46_arg_0=254, var_46_arg_1=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L148] EXPR var_46_arg_0 | var_46_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46_arg_0=254, var_46_arg_1=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] EXPR var_46 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=255, var_46_arg_0=254, var_46_arg_1=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_5=1, var_8=0] [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L161] EXPR var_51 & mask_SORT_4 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, input_3=255, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, next_52_arg_1=1, state_6=0, state_9=1, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=255, var_12_arg_0=0, var_15=1, var_16=0, var_16_arg_0=255, var_17=0, var_17_arg_0=1, var_17_arg_1=0, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, next_52_arg_1=1, state_6=0, state_9=1, var_11=1, var_11_arg_0=0, var_11_arg_1=1, var_12=254, var_12_arg_0=1, var_15=1, var_16=1, var_16_arg_0=254, var_17=0, var_17_arg_0=1, var_17_arg_1=1, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L66] EXPR var_17_arg_0 & var_17_arg_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, next_52_arg_1=1, state_6=0, state_9=1, var_11=1, var_11_arg_0=0, var_11_arg_1=1, var_12=254, var_12_arg_0=1, var_15=1, var_16=1, var_16_arg_0=254, var_17=0, var_17_arg_0=1, var_17_arg_1=1, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] EXPR var_17 & mask_SORT_1 VAL [bad_18_arg_0=0, init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, next_41_arg_1=0, next_52_arg_1=1, state_6=0, state_9=1, var_11=1, var_11_arg_0=0, var_11_arg_1=1, var_12=254, var_12_arg_0=1, var_15=1, var_16=1, var_16_arg_0=254, var_17=1, var_17_arg_0=1, var_17_arg_1=1, var_20=2, var_20_arg_0=1, var_20_arg_1=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=15, var_23=1, var_23_arg_0=1, var_23_arg_1=15, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=2, var_25_arg_0=1, var_25_arg_1=2, var_25_arg_2=0, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=2, var_27_arg_0=0, var_27_arg_1=1, var_27_arg_2=2, var_29=15, var_29_arg_0=15, var_30=1, var_31=2, var_31_arg_0=15, var_31_arg_1=1, var_32=2, var_32_arg_0=2, var_33=1, var_33_arg_0=1, var_34=0, var_34_arg_0=1, var_34_arg_1=1, var_35=0, var_35_arg_0=0, var_36=2, var_36_arg_0=2, var_36_arg_1=0, var_37=0, var_37_arg_0=255, var_38=1, var_38_arg_0=1, var_38_arg_1=0, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=2, var_40_arg_2=2, var_42=1, var_42_arg_0=0, var_42_arg_1=1, var_43=1, var_43_arg_0=1, var_43_arg_1=0, var_44=254, var_44_arg_0=1, var_45=1, var_45_arg_0=1, var_45_arg_1=15, var_46=1, var_46_arg_0=254, var_46_arg_1=1, var_47=1, var_47_arg_0=1, var_47_arg_1=1, var_47_arg_2=1, var_48=0, var_48_arg_0=255, var_49=1, var_49_arg_0=1, var_49_arg_1=0, var_50=0, var_50_arg_0=0, var_50_arg_1=1, var_51=1, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=1, var_5=1, var_8=0] [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.9s, OverallIterations: 20, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4434 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4434 mSDsluCounter, 7101 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5346 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2754 IncrementalHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 1755 mSDtfsCounter, 2754 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=15, InterpolantAutomatonStates: 159, 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, 19 MinimizatonAttempts, 969 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 1044 NumberOfCodeBlocks, 1044 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 967 ConstructedInterpolants, 0 QuantifiedInterpolants, 5411 SizeOfPredicates, 22 NumberOfNonLiveVariables, 752 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 21 InterpolantComputations, 19 PerfectInterpolantSequences, 100/108 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 [2023-11-26 11:49:20,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme --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 927306cfdb34082f032dbe87a24c6d688e2dda4e8fb165835d54bffc8f03e27e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:49:23,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:23,497 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-26 11:49:23,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:23,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:23,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:23,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:23,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:23,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:49:23,541 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:49:23,542 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:23,542 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:23,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:23,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:23,546 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:23,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:23,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:23,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:23,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:23,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:23,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:23,550 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:49:23,550 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:49:23,551 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:49:23,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:23,551 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:23,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:23,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:23,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:49:23,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:23,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:23,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:23,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:23,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:23,556 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:49:23,556 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:49:23,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:23,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:23,558 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:23,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:23,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:23,559 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:49:23,559 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_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 927306cfdb34082f032dbe87a24c6d688e2dda4e8fb165835d54bffc8f03e27e [2023-11-26 11:49:23,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:23,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:23,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:23,962 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:23,963 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:23,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2023-11-26 11:49:27,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:49:27,542 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:49:27,545 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2023-11-26 11:49:27,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/data/aed2631bb/3d0ce4da4e59480e9df20cda7a3e9a35/FLAGed96a395f [2023-11-26 11:49:27,575 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/data/aed2631bb/3d0ce4da4e59480e9df20cda7a3e9a35 [2023-11-26 11:49:27,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:49:27,578 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:49:27,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:27,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:49:27,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:49:27,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:27,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4fbb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27, skipping insertion in model container [2023-11-26 11:49:27,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:27,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:27,815 WARN L240 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_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1250,1263] [2023-11-26 11:49:27,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:27,884 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:27,897 WARN L240 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_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1250,1263] [2023-11-26 11:49:27,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:27,945 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:27,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27 WrapperNode [2023-11-26 11:49:27,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:27,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:27,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:27,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:27,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:27,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:27,996 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 157 [2023-11-26 11:49:27,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:27,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:27,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:27,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:28,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,032 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,061 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]. [2023-11-26 11:49:28,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:28,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:28,093 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:28,093 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:28,094 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (1/1) ... [2023-11-26 11:49:28,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:28,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:28,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:28,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:49:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:28,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:28,312 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:28,327 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:28,601 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:28,648 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:28,649 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:49:28,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:28 BoogieIcfgContainer [2023-11-26 11:49:28,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:28,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:28,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:28,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:28,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:49:27" (1/3) ... [2023-11-26 11:49:28,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4788cc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:28, skipping insertion in model container [2023-11-26 11:49:28,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:27" (2/3) ... [2023-11-26 11:49:28,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4788cc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:28, skipping insertion in model container [2023-11-26 11:49:28,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:28" (3/3) ... [2023-11-26 11:49:28,662 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal_v.c [2023-11-26 11:49:28,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:28,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:49:28,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:28,754 INFO L357 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, mHoare=true, 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;@1a9ce44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:28,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:49:28,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-26 11:49:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 11:49:28,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:28,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 11:49:28,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:28,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:28,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-26 11:49:28,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:28,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118536268] [2023-11-26 11:49:28,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:28,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:28,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:28,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:49:28,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 11:49:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:49:28,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:29,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:29,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:49:29,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118536268] [2023-11-26 11:49:29,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118536268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:29,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:29,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:49:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999434082] [2023-11-26 11:49:29,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:29,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:49:29,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:49:29,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:49:29,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:49:29,353 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-26 11:49:29,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:29,425 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-26 11:49:29,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:49:29,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-26 11:49:29,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:29,435 INFO L225 Difference]: With dead ends: 16 [2023-11-26 11:49:29,436 INFO L226 Difference]: Without dead ends: 9 [2023-11-26 11:49:29,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:49:29,442 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 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 [2023-11-26 11:49:29,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:29,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-26 11:49:29,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-26 11:49:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-11-26 11:49:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-26 11:49:29,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-26 11:49:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:29,475 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-26 11:49:29,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-26 11:49:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-26 11:49:29,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 11:49:29,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:29,476 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-26 11:49:29,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-26 11:49:29,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:29,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:29,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:29,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-26 11:49:29,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:29,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821808915] [2023-11-26 11:49:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:29,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:29,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:29,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:49:29,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 11:49:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:29,881 WARN L260 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-26 11:49:29,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:32,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:49:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:38,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:49:38,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821808915] [2023-11-26 11:49:38,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821808915] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:49:38,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:49:38,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 11:49:38,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654194650] [2023-11-26 11:49:38,084 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:49:38,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:49:38,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:49:38,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:49:38,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:38,088 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 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) [2023-11-26 11:49:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:38,285 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-26 11:49:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:49:38,285 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 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) Word has length 7 [2023-11-26 11:49:38,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:38,286 INFO L225 Difference]: With dead ends: 14 [2023-11-26 11:49:38,286 INFO L226 Difference]: Without dead ends: 12 [2023-11-26 11:49:38,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:38,288 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:38,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:38,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-26 11:49:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-26 11:49:38,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-26 11:49:38,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-26 11:49:38,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:38,295 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-26 11:49:38,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 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) [2023-11-26 11:49:38,295 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-26 11:49:38,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 11:49:38,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:38,296 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-26 11:49:38,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:38,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:38,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:38,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-26 11:49:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:38,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991950037] [2023-11-26 11:49:38,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:49:38,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:38,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:38,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:49:38,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2fb9cd-ab15-4587-9dcb-6538065bb3e0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 11:49:38,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:49:38,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:49:38,746 WARN L260 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 165 conjunts are in the unsatisfiable core [2023-11-26 11:49:38,754 INFO L285 TraceCheckSpWp]: Computing forward predicates...