./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 5335ff3ae60d503c7989a0baf091bf4ee05fe6735e77308a3563d234056465f1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:29,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:29,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 12:00:29,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:29,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:29,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:29,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:29,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:29,550 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:29,551 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:29,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:29,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:29,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:29,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:29,554 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:29,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:29,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:29,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:29,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:29,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:29,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:29,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:29,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:29,560 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:29,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:29,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:29,562 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:29,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:29,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:29,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:29,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:29,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:29,566 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:29,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:29,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:29,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:29,567 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:29,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:29,568 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:29,569 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5335ff3ae60d503c7989a0baf091bf4ee05fe6735e77308a3563d234056465f1 [2023-11-26 12:00:29,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:29,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:29,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:29,922 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:29,923 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:29,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c [2023-11-26 12:00:33,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:33,482 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:33,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c [2023-11-26 12:00:33,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/data/3b6a890aa/06d27f51673c439c83663ffaa8a682d2/FLAGc5ec0f13f [2023-11-26 12:00:33,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/data/3b6a890aa/06d27f51673c439c83663ffaa8a682d2 [2023-11-26 12:00:33,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:33,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:33,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:33,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:33,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:33,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226182af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33, skipping insertion in model container [2023-11-26 12:00:33,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:33,886 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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c[1175,1188] [2023-11-26 12:00:34,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:34,266 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:34,279 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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c[1175,1188] [2023-11-26 12:00:34,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:34,509 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:34,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34 WrapperNode [2023-11-26 12:00:34,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:34,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:34,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:34,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:34,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:34,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,028 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3642 [2023-11-26 12:00:35,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:35,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:35,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:35,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:35,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,284 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,509 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 12:00:35,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:35,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:35,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:35,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:35,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (1/1) ... [2023-11-26 12:00:35,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:35,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:35,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:35,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:36,355 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:36,360 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:39,860 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:39,943 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:39,943 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:00:39,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:39 BoogieIcfgContainer [2023-11-26 12:00:39,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:39,947 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:39,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:39,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:39,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:33" (1/3) ... [2023-11-26 12:00:39,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eef448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:39, skipping insertion in model container [2023-11-26 12:00:39,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:34" (2/3) ... [2023-11-26 12:00:39,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eef448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:39, skipping insertion in model container [2023-11-26 12:00:39,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:39" (3/3) ... [2023-11-26 12:00:39,954 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.1.prop1-func-interl.c [2023-11-26 12:00:39,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:39,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:00:40,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:40,087 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;@303b14ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:40,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:00:40,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 856 states, 854 states have (on average 1.6721311475409837) internal successors, (1428), 855 states have internal predecessors, (1428), 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 12:00:40,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-26 12:00:40,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:40,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:40,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:40,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash 563455208, now seen corresponding path program 1 times [2023-11-26 12:00:40,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:40,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552975396] [2023-11-26 12:00:40,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:40,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:41,046 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 12:00:41,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:41,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552975396] [2023-11-26 12:00:41,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552975396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:41,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:41,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:41,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133277733] [2023-11-26 12:00:41,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:41,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:41,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:41,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:41,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:41,109 INFO L87 Difference]: Start difference. First operand has 856 states, 854 states have (on average 1.6721311475409837) internal successors, (1428), 855 states have internal predecessors, (1428), 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 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 12:00:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:41,293 INFO L93 Difference]: Finished difference Result 1663 states and 2777 transitions. [2023-11-26 12:00:41,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:41,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2023-11-26 12:00:41,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:41,319 INFO L225 Difference]: With dead ends: 1663 [2023-11-26 12:00:41,321 INFO L226 Difference]: Without dead ends: 856 [2023-11-26 12:00:41,331 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 12:00:41,336 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 1 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4258 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 12:00:41,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4258 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-11-26 12:00:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 856. [2023-11-26 12:00:41,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 1.6678362573099415) internal successors, (1426), 855 states have internal predecessors, (1426), 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 12:00:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1426 transitions. [2023-11-26 12:00:41,452 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1426 transitions. Word has length 58 [2023-11-26 12:00:41,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:41,453 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 1426 transitions. [2023-11-26 12:00:41,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 12:00:41,454 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1426 transitions. [2023-11-26 12:00:41,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 12:00:41,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:41,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:41,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:41,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:41,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:41,461 INFO L85 PathProgramCache]: Analyzing trace with hash 288967536, now seen corresponding path program 1 times [2023-11-26 12:00:41,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:41,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906139316] [2023-11-26 12:00:41,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:41,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:41,755 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 12:00:41,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:41,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906139316] [2023-11-26 12:00:41,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906139316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:41,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:41,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:41,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624214215] [2023-11-26 12:00:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:41,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:41,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:41,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:41,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:41,769 INFO L87 Difference]: Start difference. First operand 856 states and 1426 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 12:00:41,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:41,893 INFO L93 Difference]: Finished difference Result 1666 states and 2775 transitions. [2023-11-26 12:00:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:41,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2023-11-26 12:00:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:41,900 INFO L225 Difference]: With dead ends: 1666 [2023-11-26 12:00:41,901 INFO L226 Difference]: Without dead ends: 859 [2023-11-26 12:00:41,903 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 12:00:41,905 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 1 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4256 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 12:00:41,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4256 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-11-26 12:00:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 858. [2023-11-26 12:00:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 1.6662777129521587) internal successors, (1428), 857 states have internal predecessors, (1428), 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 12:00:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1428 transitions. [2023-11-26 12:00:41,935 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1428 transitions. Word has length 59 [2023-11-26 12:00:41,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:41,937 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1428 transitions. [2023-11-26 12:00:41,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 12:00:41,937 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1428 transitions. [2023-11-26 12:00:41,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-26 12:00:41,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:41,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:41,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:00:41,945 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:41,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1932634244, now seen corresponding path program 1 times [2023-11-26 12:00:41,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:41,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863180824] [2023-11-26 12:00:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:41,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:42,210 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 12:00:42,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:42,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863180824] [2023-11-26 12:00:42,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863180824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:42,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:42,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:42,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611817059] [2023-11-26 12:00:42,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:42,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:42,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:42,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:42,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:42,218 INFO L87 Difference]: Start difference. First operand 858 states and 1428 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 12:00:42,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:42,330 INFO L93 Difference]: Finished difference Result 2466 states and 4107 transitions. [2023-11-26 12:00:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:42,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2023-11-26 12:00:42,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:42,340 INFO L225 Difference]: With dead ends: 2466 [2023-11-26 12:00:42,341 INFO L226 Difference]: Without dead ends: 1657 [2023-11-26 12:00:42,342 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 12:00:42,344 INFO L413 NwaCegarLoop]: 1462 mSDtfsCounter, 1329 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:42,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 4334 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:42,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2023-11-26 12:00:42,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 860. [2023-11-26 12:00:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 1.6647264260768335) internal successors, (1430), 859 states have internal predecessors, (1430), 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 12:00:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1430 transitions. [2023-11-26 12:00:42,375 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1430 transitions. Word has length 60 [2023-11-26 12:00:42,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:42,376 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 1430 transitions. [2023-11-26 12:00:42,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 12:00:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1430 transitions. [2023-11-26 12:00:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-26 12:00:42,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:42,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:42,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:42,378 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:42,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,379 INFO L85 PathProgramCache]: Analyzing trace with hash -328586792, now seen corresponding path program 1 times [2023-11-26 12:00:42,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324261542] [2023-11-26 12:00:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:42,607 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 12:00:42,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:42,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324261542] [2023-11-26 12:00:42,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324261542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:42,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:42,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:42,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080591821] [2023-11-26 12:00:42,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:42,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:42,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:42,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:42,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:42,611 INFO L87 Difference]: Start difference. First operand 860 states and 1430 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 12:00:42,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:42,719 INFO L93 Difference]: Finished difference Result 2472 states and 4113 transitions. [2023-11-26 12:00:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:42,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-11-26 12:00:42,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:42,729 INFO L225 Difference]: With dead ends: 2472 [2023-11-26 12:00:42,729 INFO L226 Difference]: Without dead ends: 1661 [2023-11-26 12:00:42,731 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 12:00:42,739 INFO L413 NwaCegarLoop]: 1457 mSDtfsCounter, 1326 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 4324 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:42,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 4324 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:42,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2023-11-26 12:00:42,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 863. [2023-11-26 12:00:42,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 1.6647331786542923) internal successors, (1435), 862 states have internal predecessors, (1435), 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 12:00:42,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1435 transitions. [2023-11-26 12:00:42,823 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1435 transitions. Word has length 61 [2023-11-26 12:00:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:42,824 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1435 transitions. [2023-11-26 12:00:42,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 12:00:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1435 transitions. [2023-11-26 12:00:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 12:00:42,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:42,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:42,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:00:42,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:42,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1795058786, now seen corresponding path program 1 times [2023-11-26 12:00:42,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583593696] [2023-11-26 12:00:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:43,210 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 12:00:43,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:43,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583593696] [2023-11-26 12:00:43,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583593696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:43,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:43,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:43,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383363126] [2023-11-26 12:00:43,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:43,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:00:43,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:43,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:43,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:43,215 INFO L87 Difference]: Start difference. First operand 863 states and 1435 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 12:00:44,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:44,561 INFO L93 Difference]: Finished difference Result 2488 states and 4138 transitions. [2023-11-26 12:00:44,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:00:44,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2023-11-26 12:00:44,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:44,572 INFO L225 Difference]: With dead ends: 2488 [2023-11-26 12:00:44,572 INFO L226 Difference]: Without dead ends: 1674 [2023-11-26 12:00:44,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 12:00:44,574 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 4060 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4060 SdHoareTripleChecker+Valid, 3378 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:44,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4060 Valid, 3378 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 12:00:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2023-11-26 12:00:44,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 887. [2023-11-26 12:00:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.662528216704289) internal successors, (1473), 886 states have internal predecessors, (1473), 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 12:00:44,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1473 transitions. [2023-11-26 12:00:44,606 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1473 transitions. Word has length 62 [2023-11-26 12:00:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:44,607 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1473 transitions. [2023-11-26 12:00:44,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 12:00:44,608 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1473 transitions. [2023-11-26 12:00:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 12:00:44,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:44,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:44,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:00:44,609 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:44,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1913102496, now seen corresponding path program 1 times [2023-11-26 12:00:44,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563167713] [2023-11-26 12:00:44,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:45,179 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 12:00:45,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:45,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563167713] [2023-11-26 12:00:45,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563167713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:45,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:45,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:45,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905898532] [2023-11-26 12:00:45,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:45,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:45,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:45,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:45,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:45,183 INFO L87 Difference]: Start difference. First operand 887 states and 1473 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 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 12:00:46,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:46,729 INFO L93 Difference]: Finished difference Result 2520 states and 4186 transitions. [2023-11-26 12:00:46,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:00:46,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2023-11-26 12:00:46,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:46,739 INFO L225 Difference]: With dead ends: 2520 [2023-11-26 12:00:46,739 INFO L226 Difference]: Without dead ends: 1706 [2023-11-26 12:00:46,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:46,741 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 4022 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4022 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:46,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4022 Valid, 4495 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 12:00:46,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-11-26 12:00:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 899. [2023-11-26 12:00:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 898 states have (on average 1.6559020044543429) internal successors, (1487), 898 states have internal predecessors, (1487), 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 12:00:46,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1487 transitions. [2023-11-26 12:00:46,772 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1487 transitions. Word has length 62 [2023-11-26 12:00:46,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:46,772 INFO L495 AbstractCegarLoop]: Abstraction has 899 states and 1487 transitions. [2023-11-26 12:00:46,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 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 12:00:46,773 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1487 transitions. [2023-11-26 12:00:46,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 12:00:46,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:46,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:46,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:00:46,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:46,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1520075486, now seen corresponding path program 1 times [2023-11-26 12:00:46,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:46,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878919759] [2023-11-26 12:00:46,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:46,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:47,471 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 12:00:47,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:47,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878919759] [2023-11-26 12:00:47,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878919759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:47,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:47,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:47,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292339532] [2023-11-26 12:00:47,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:47,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:47,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:47,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:47,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:47,475 INFO L87 Difference]: Start difference. First operand 899 states and 1487 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 12:00:49,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:49,560 INFO L93 Difference]: Finished difference Result 1727 states and 2859 transitions. [2023-11-26 12:00:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:00:49,561 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2023-11-26 12:00:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:49,566 INFO L225 Difference]: With dead ends: 1727 [2023-11-26 12:00:49,566 INFO L226 Difference]: Without dead ends: 904 [2023-11-26 12:00:49,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:49,569 INFO L413 NwaCegarLoop]: 1210 mSDtfsCounter, 2670 mSDsluCounter, 4640 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2670 SdHoareTripleChecker+Valid, 5850 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:49,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2670 Valid, 5850 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-26 12:00:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-11-26 12:00:49,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 902. [2023-11-26 12:00:49,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 901 states have (on average 1.6548279689234184) internal successors, (1491), 901 states have internal predecessors, (1491), 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 12:00:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1491 transitions. [2023-11-26 12:00:49,596 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1491 transitions. Word has length 62 [2023-11-26 12:00:49,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:49,597 INFO L495 AbstractCegarLoop]: Abstraction has 902 states and 1491 transitions. [2023-11-26 12:00:49,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 12:00:49,597 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1491 transitions. [2023-11-26 12:00:49,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 12:00:49,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:49,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:49,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:00:49,598 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:49,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:49,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1520135068, now seen corresponding path program 1 times [2023-11-26 12:00:49,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:49,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202209197] [2023-11-26 12:00:49,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:49,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,087 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 12:00:50,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:50,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202209197] [2023-11-26 12:00:50,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202209197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:50,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:50,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:00:50,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384359851] [2023-11-26 12:00:50,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:50,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:50,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:50,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:50,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:50,090 INFO L87 Difference]: Start difference. First operand 902 states and 1491 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 12:00:51,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:51,486 INFO L93 Difference]: Finished difference Result 1730 states and 2862 transitions. [2023-11-26 12:00:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:00:51,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-11-26 12:00:51,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:51,493 INFO L225 Difference]: With dead ends: 1730 [2023-11-26 12:00:51,493 INFO L226 Difference]: Without dead ends: 903 [2023-11-26 12:00:51,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:51,497 INFO L413 NwaCegarLoop]: 1139 mSDtfsCounter, 2701 mSDsluCounter, 3463 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:51,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2701 Valid, 4602 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 12:00:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2023-11-26 12:00:51,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 899. [2023-11-26 12:00:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 898 states have (on average 1.6547884187082404) internal successors, (1486), 898 states have internal predecessors, (1486), 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 12:00:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1486 transitions. [2023-11-26 12:00:51,534 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1486 transitions. Word has length 62 [2023-11-26 12:00:51,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:51,535 INFO L495 AbstractCegarLoop]: Abstraction has 899 states and 1486 transitions. [2023-11-26 12:00:51,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 12:00:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1486 transitions. [2023-11-26 12:00:51,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 12:00:51,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:51,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:51,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:00:51,543 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:51,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,543 INFO L85 PathProgramCache]: Analyzing trace with hash -254931876, now seen corresponding path program 1 times [2023-11-26 12:00:51,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576333018] [2023-11-26 12:00:51,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:51,726 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:00:51,727 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:00:51,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:00:51,733 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:51,737 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:00:51,794 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-26 12:00:51,797 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 12:00:51,798 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-26 12:00:51,798 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-26 12:00:51,799 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-26 12:00:51,799 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-26 12:00:51,800 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-26 12:00:51,800 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-26 12:00:51,800 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-26 12:00:51,801 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-26 12:00:51,801 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-26 12:00:51,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-26 12:00:51,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-26 12:00:51,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-26 12:00:51,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-26 12:00:51,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-11-26 12:00:51,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated [2023-11-26 12:00:51,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-26 12:00:51,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-26 12:00:51,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-26 12:00:51,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-26 12:00:51,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-26 12:00:51,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated [2023-11-26 12:00:51,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-26 12:00:51,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet29 could not be translated [2023-11-26 12:00:51,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet28 could not be translated [2023-11-26 12:00:51,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-26 12:00:51,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-26 12:00:51,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet33 could not be translated [2023-11-26 12:00:51,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-26 12:00:51,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-26 12:00:51,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet34 could not be translated [2023-11-26 12:00:51,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet41 could not be translated [2023-11-26 12:00:51,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 12:00:51,816 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet45 could not be translated [2023-11-26 12:00:51,818 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated [2023-11-26 12:00:51,818 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet49 could not be translated [2023-11-26 12:00:51,819 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet51 could not be translated [2023-11-26 12:00:51,821 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet54 could not be translated [2023-11-26 12:00:51,822 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet55 could not be translated [2023-11-26 12:00:51,824 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet56 could not be translated [2023-11-26 12:00:51,825 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet57 could not be translated [2023-11-26 12:00:51,826 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated [2023-11-26 12:00:51,827 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-26 12:00:51,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:00:51 BoogieIcfgContainer [2023-11-26 12:00:51,848 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:00:51,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:51,849 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:51,849 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:51,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:39" (3/4) ... [2023-11-26 12:00:51,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:00:51,852 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:51,853 INFO L158 Benchmark]: Toolchain (without parser) took 18323.08ms. Allocated memory was 157.3MB in the beginning and 507.5MB in the end (delta: 350.2MB). Free memory was 121.5MB in the beginning and 371.0MB in the end (delta: -249.4MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2023-11-26 12:00:51,853 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:51,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 976.69ms. Allocated memory is still 157.3MB. Free memory was 121.2MB in the beginning and 94.7MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-26 12:00:51,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 517.31ms. Allocated memory is still 157.3MB. Free memory was 94.7MB in the beginning and 61.9MB in the end (delta: 32.8MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-11-26 12:00:51,855 INFO L158 Benchmark]: Boogie Preprocessor took 887.75ms. Allocated memory was 157.3MB in the beginning and 285.2MB in the end (delta: 127.9MB). Free memory was 61.4MB in the beginning and 184.8MB in the end (delta: -123.4MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2023-11-26 12:00:51,855 INFO L158 Benchmark]: RCFGBuilder took 4025.66ms. Allocated memory was 285.2MB in the beginning and 369.1MB in the end (delta: 83.9MB). Free memory was 184.8MB in the beginning and 151.1MB in the end (delta: 33.7MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. [2023-11-26 12:00:51,855 INFO L158 Benchmark]: TraceAbstraction took 11900.84ms. Allocated memory was 369.1MB in the beginning and 507.5MB in the end (delta: 138.4MB). Free memory was 150.0MB in the beginning and 371.0MB in the end (delta: -220.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:51,856 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 507.5MB. Free memory is still 371.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:51,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 976.69ms. Allocated memory is still 157.3MB. Free memory was 121.2MB in the beginning and 94.7MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 517.31ms. Allocated memory is still 157.3MB. Free memory was 94.7MB in the beginning and 61.9MB in the end (delta: 32.8MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 887.75ms. Allocated memory was 157.3MB in the beginning and 285.2MB in the end (delta: 127.9MB). Free memory was 61.4MB in the beginning and 184.8MB in the end (delta: -123.4MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. * RCFGBuilder took 4025.66ms. Allocated memory was 285.2MB in the beginning and 369.1MB in the end (delta: 83.9MB). Free memory was 184.8MB in the beginning and 151.1MB in the end (delta: 33.7MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11900.84ms. Allocated memory was 369.1MB in the beginning and 507.5MB in the end (delta: 138.4MB). Free memory was 150.0MB in the beginning and 371.0MB in the end (delta: -220.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 507.5MB. Free memory is still 371.0MB. 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~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 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~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 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~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 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~nondet27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet58 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 bitwiseAnd at line 149. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_16 = 0; [L40] const SORT_4 var_39 = 1; [L41] const SORT_4 var_40 = 0; [L42] const SORT_2 var_47 = 1; [L43] const SORT_3 var_49 = 0; [L44] const SORT_4 var_52 = 2; [L45] const SORT_2 var_62 = 0; [L47] SORT_1 input_48; [L48] SORT_1 input_56; [L49] SORT_1 input_63; [L50] SORT_1 input_69; [L51] SORT_1 input_95; [L52] SORT_1 input_99; [L53] SORT_1 input_102; [L54] SORT_1 input_103; [L55] SORT_1 input_109; [L56] SORT_1 input_115; [L57] SORT_1 input_130; [L58] SORT_1 input_148; [L60] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L60] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L61] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_6=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L61] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L62] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L62] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L63] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L63] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L64] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L64] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L65] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L65] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L66] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L66] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L67] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L67] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L68] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L69] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L70] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L71] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L72] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L73] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L74] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L75] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_2 init_7_arg_1 = var_5; [L78] state_6 = init_7_arg_1 [L79] SORT_2 init_9_arg_1 = var_5; [L80] state_8 = init_9_arg_1 [L81] SORT_2 init_11_arg_1 = var_5; [L82] state_10 = init_11_arg_1 [L83] SORT_2 init_13_arg_1 = var_5; [L84] state_12 = init_13_arg_1 [L85] SORT_2 init_15_arg_1 = var_5; [L86] state_14 = init_15_arg_1 [L87] SORT_1 init_18_arg_1 = var_16; [L88] state_17 = init_18_arg_1 [L89] SORT_1 init_20_arg_1 = var_16; [L90] state_19 = init_20_arg_1 [L91] SORT_1 init_22_arg_1 = var_16; [L92] state_21 = init_22_arg_1 [L93] SORT_1 init_24_arg_1 = var_16; [L94] state_23 = init_24_arg_1 [L95] SORT_1 init_26_arg_1 = var_16; [L96] state_25 = init_26_arg_1 [L97] SORT_1 init_28_arg_1 = var_16; [L98] state_27 = init_28_arg_1 [L99] SORT_1 init_30_arg_1 = var_16; [L100] state_29 = init_30_arg_1 [L101] SORT_1 init_32_arg_1 = var_16; [L102] state_31 = init_32_arg_1 [L103] SORT_1 init_34_arg_1 = var_16; [L104] state_33 = init_34_arg_1 [L105] SORT_1 init_36_arg_1 = var_16; [L106] state_35 = init_36_arg_1 [L107] SORT_1 init_38_arg_1 = var_16; [L108] state_37 = init_38_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L111] input_48 = __VERIFIER_nondet_uchar() [L112] input_56 = __VERIFIER_nondet_uchar() [L113] input_63 = __VERIFIER_nondet_uchar() [L114] input_69 = __VERIFIER_nondet_uchar() [L115] input_95 = __VERIFIER_nondet_uchar() [L116] EXPR input_95 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_95=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L116] input_95 = input_95 & mask_SORT_1 [L117] input_99 = __VERIFIER_nondet_uchar() [L118] EXPR input_99 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L118] input_99 = input_99 & mask_SORT_1 [L119] input_102 = __VERIFIER_nondet_uchar() [L120] EXPR input_102 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L120] input_102 = input_102 & mask_SORT_1 [L121] input_103 = __VERIFIER_nondet_uchar() [L122] EXPR input_103 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L122] input_103 = input_103 & mask_SORT_1 [L123] input_109 = __VERIFIER_nondet_uchar() [L124] EXPR input_109 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L124] input_109 = input_109 & mask_SORT_1 [L125] input_115 = __VERIFIER_nondet_uchar() [L126] EXPR input_115 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L126] input_115 = input_115 & mask_SORT_1 [L127] input_130 = __VERIFIER_nondet_uchar() [L128] input_148 = __VERIFIER_nondet_uchar() [L131] SORT_1 var_41_arg_0 = state_25; [L132] SORT_4 var_41_arg_1 = var_39; [L133] SORT_4 var_41_arg_2 = var_40; [L134] SORT_4 var_41 = var_41_arg_0 ? var_41_arg_1 : var_41_arg_2; [L135] SORT_1 var_42_arg_0 = state_35; [L136] SORT_4 var_42_arg_1 = var_39; [L137] SORT_4 var_42_arg_2 = var_40; [L138] SORT_4 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L139] SORT_4 var_43_arg_0 = var_41; [L140] SORT_4 var_43_arg_1 = var_42; [L141] SORT_4 var_43 = var_43_arg_0 + var_43_arg_1; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_41=0, var_41_arg_0=0, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=0, var_42_arg_1=1, var_42_arg_2=0, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L142] EXPR var_43 & mask_SORT_4 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_41=0, var_41_arg_0=0, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=0, var_42_arg_1=1, var_42_arg_2=0, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L142] var_43 = var_43 & mask_SORT_4 [L143] SORT_4 var_44_arg_0 = var_43; [L144] SORT_4 var_44_arg_1 = var_39; [L145] SORT_1 var_44 = var_44_arg_0 <= var_44_arg_1; [L146] SORT_1 var_45_arg_0 = ~state_37; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_41=0, var_41_arg_0=0, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=0, var_42_arg_1=1, var_42_arg_2=0, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=1, var_44_arg_0=0, var_44_arg_1=1, var_45_arg_0=255, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L147] EXPR var_45_arg_0 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_41=0, var_41_arg_0=0, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=0, var_42_arg_1=1, var_42_arg_2=0, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=1, var_44_arg_0=0, var_44_arg_1=1, var_45_arg_0=255, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L147] var_45_arg_0 = var_45_arg_0 & mask_SORT_1 [L148] SORT_1 var_45_arg_1 = ~var_44; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_41=0, var_41_arg_0=0, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=0, var_42_arg_1=1, var_42_arg_2=0, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=1, var_44_arg_0=0, var_44_arg_1=1, var_45_arg_0=1, var_45_arg_1=254, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L149] EXPR var_45_arg_1 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_41=0, var_41_arg_0=0, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=0, var_42_arg_1=1, var_42_arg_2=0, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=1, var_44_arg_0=0, var_44_arg_1=1, var_45_arg_0=1, var_45_arg_1=254, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L149] var_45_arg_1 = var_45_arg_1 & mask_SORT_1 [L150] EXPR var_45_arg_0 & var_45_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_41=0, var_41_arg_0=0, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=0, var_42_arg_1=1, var_42_arg_2=0, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=1, var_44_arg_0=0, var_44_arg_1=1, var_45_arg_0=1, var_45_arg_1=1, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L150] SORT_1 var_45 = var_45_arg_0 & var_45_arg_1; [L151] EXPR var_45 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_102=0, input_103=0, input_109=0, input_115=0, input_95=0, input_99=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_6=0, state_8=0, var_16=0, var_39=1, var_40=0, var_41=0, var_41_arg_0=0, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=0, var_42_arg_1=1, var_42_arg_2=0, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=1, var_44_arg_0=0, var_44_arg_1=1, var_45=1, var_45_arg_0=1, var_45_arg_1=1, var_47=1, var_49=0, var_52=2, var_5=0, var_62=0] [L151] var_45 = var_45 & mask_SORT_1 [L152] SORT_1 bad_46_arg_0 = var_45; [L153] CALL __VERIFIER_assert(!(bad_46_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, 856 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16110 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16110 mSDsluCounter, 35497 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25130 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5340 IncrementalHoareTripleChecker+Invalid, 5351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 10367 mSDtfsCounter, 5340 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=902occurred in iteration=7, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 3196 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 548 NumberOfCodeBlocks, 548 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 1566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:00:51,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 5335ff3ae60d503c7989a0baf091bf4ee05fe6735e77308a3563d234056465f1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:54,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:54,788 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-26 12:00:54,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:54,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:54,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:54,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:54,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:54,826 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:54,826 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:54,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:54,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:54,828 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:54,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:54,829 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:54,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:54,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:54,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:54,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:54,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:54,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:54,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:00:54,833 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:00:54,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:00:54,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:54,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:54,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:54,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:54,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:54,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:54,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:54,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:54,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:54,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:54,838 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:00:54,838 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:00:54,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:54,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:54,839 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:54,839 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:54,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:54,840 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:00:54,840 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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5335ff3ae60d503c7989a0baf091bf4ee05fe6735e77308a3563d234056465f1 [2023-11-26 12:00:55,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:55,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:55,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:55,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:55,258 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:55,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c [2023-11-26 12:00:58,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:58,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:58,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c [2023-11-26 12:00:58,875 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/data/e326153eb/81a08102d02a410b9540979a0c323e2a/FLAG563c155ae [2023-11-26 12:00:58,890 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/data/e326153eb/81a08102d02a410b9540979a0c323e2a [2023-11-26 12:00:58,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:58,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:58,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:58,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:58,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:58,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:58" (1/1) ... [2023-11-26 12:00:58,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2cfb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:58, skipping insertion in model container [2023-11-26 12:00:58,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:58" (1/1) ... [2023-11-26 12:00:58,965 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:59,197 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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c[1175,1188] [2023-11-26 12:00:59,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:59,521 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:59,535 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_28e47577-f0cb-466e-9dfd-27a71dea9c5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.1.prop1-func-interl.c[1175,1188] [2023-11-26 12:00:59,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:59,674 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:59,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59 WrapperNode [2023-11-26 12:00:59,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:59,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:59,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:59,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:59,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,835 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 923 [2023-11-26 12:00:59,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:59,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:59,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:59,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:59,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,917 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 12:00:59,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:01:00,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:01:00,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:01:00,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:01:00,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:01:00,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:01:00,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:01:00,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:01:00,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:00,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:00,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:01:00,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:01:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:01:00,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:01:00,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:01:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:01:00,465 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:01:00,468 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:01:02,631 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:01:02,732 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:01:02,733 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:01:02,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:02 BoogieIcfgContainer [2023-11-26 12:01:02,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:01:02,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:01:02,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:01:02,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:01:02,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:58" (1/3) ... [2023-11-26 12:01:02,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6907dc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:02, skipping insertion in model container [2023-11-26 12:01:02,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (2/3) ... [2023-11-26 12:01:02,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6907dc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:02, skipping insertion in model container [2023-11-26 12:01:02,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:02" (3/3) ... [2023-11-26 12:01:02,749 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.1.prop1-func-interl.c [2023-11-26 12:01:02,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:01:02,771 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:01:02,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:01:02,834 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;@2f611bb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:01:02,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:01:02,847 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 12:01:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 12:01:02,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:02,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 12:01:02,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:02,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:02,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-26 12:01:02,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:01:02,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131973148] [2023-11-26 12:01:02,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:02,890 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 12:01:02,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:01:02,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:02,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:03,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-26 12:01:03,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:03,687 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 12:01:03,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:03,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:01:03,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131973148] [2023-11-26 12:01:03,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131973148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:03,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:03,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:03,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706435535] [2023-11-26 12:01:03,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:03,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:03,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:01:03,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:03,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:03,732 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 12:01:04,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:04,204 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-26 12:01:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:04,207 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 12:01:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:04,218 INFO L225 Difference]: With dead ends: 16 [2023-11-26 12:01:04,218 INFO L226 Difference]: Without dead ends: 9 [2023-11-26 12:01:04,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:04,227 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:04,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:01:04,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-26 12:01:04,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-26 12:01:04,265 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 12:01:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-26 12:01:04,267 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-26 12:01:04,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:04,268 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-26 12:01:04,268 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 12:01:04,269 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-26 12:01:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:01:04,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:04,269 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-26 12:01:04,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:04,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:04,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:04,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:04,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-26 12:01:04,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:01:04,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139680482] [2023-11-26 12:01:04,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:04,477 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 12:01:04,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:01:04,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:04,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:05,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 78 conjunts are in the unsatisfiable core [2023-11-26 12:01:05,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:06,802 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 12:01:06,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:09,183 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 12:01:09,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:01:09,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139680482] [2023-11-26 12:01:09,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139680482] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:09,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:01:09,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 12:01:09,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975827823] [2023-11-26 12:01:09,190 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:09,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:01:09,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:01:09,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:01:09,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:01:09,193 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 12:01:10,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:10,743 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-26 12:01:10,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:01:10,744 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 12:01:10,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:10,745 INFO L225 Difference]: With dead ends: 14 [2023-11-26 12:01:10,745 INFO L226 Difference]: Without dead ends: 12 [2023-11-26 12:01:10,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:01:10,748 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:10,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 12:01:10,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-26 12:01:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-26 12:01:10,754 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 12:01:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-26 12:01:10,755 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-26 12:01:10,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:10,755 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-26 12:01:10,756 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 12:01:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-26 12:01:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:01:10,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:10,757 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-26 12:01:10,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:10,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:10,971 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:10,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:10,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-26 12:01:10,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:01:10,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105311541] [2023-11-26 12:01:10,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:01:10,975 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 12:01:10,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:01:10,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:10,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e47577-f0cb-466e-9dfd-27a71dea9c5e/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 12:01:12,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:01:12,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:01:13,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 208 conjunts are in the unsatisfiable core [2023-11-26 12:01:13,044 INFO L285 TraceCheckSpWp]: Computing forward predicates...