./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:27,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:28,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:22:28,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:28,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:28,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:28,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:28,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:28,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:28,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:28,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:28,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:28,126 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:28,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:28,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:22:28,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:28,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:28,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:22:28,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:28,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:22:28,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:28,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:28,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:28,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:28,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:28,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:28,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:28,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:28,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:22:28,138 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:28,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:28,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:28,140 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:22:28,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:28,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:28,141 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:28,141 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_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 [2023-11-06 22:22:28,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:28,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:28,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:28,525 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:28,526 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:28,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2023-11-06 22:22:31,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:32,413 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:32,415 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2023-11-06 22:22:32,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/data/8459539c0/2cee10c9a29c457daf7369e61090c982/FLAGd3ac0c63a [2023-11-06 22:22:32,480 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/data/8459539c0/2cee10c9a29c457daf7369e61090c982 [2023-11-06 22:22:32,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:32,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:32,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:32,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:32,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:32,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbe6e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32, skipping insertion in model container [2023-11-06 22:22:32,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,618 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:32,917 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_0978258b-cf56-4d89-b125-747be8f7e4af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2023-11-06 22:22:33,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:33,640 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:33,655 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_0978258b-cf56-4d89-b125-747be8f7e4af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2023-11-06 22:22:33,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:33,918 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:33,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33 WrapperNode [2023-11-06 22:22:33,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:33,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:33,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:33,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:33,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:34,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:34,829 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6059 [2023-11-06 22:22:34,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:34,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:34,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:34,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:34,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:34,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:35,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:35,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:35,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:35,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:35,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:35,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:35,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:35,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:35,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:35,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:35,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:35,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:35,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:35,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:35,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:22:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:35,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:22:35,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:22:36,484 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:36,487 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:41,186 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:41,205 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:41,205 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:22:41,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:41 BoogieIcfgContainer [2023-11-06 22:22:41,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:41,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:22:41,214 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:22:41,217 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:22:41,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:32" (1/3) ... [2023-11-06 22:22:41,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59759f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:41, skipping insertion in model container [2023-11-06 22:22:41,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (2/3) ... [2023-11-06 22:22:41,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59759f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:41, skipping insertion in model container [2023-11-06 22:22:41,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:41" (3/3) ... [2023-11-06 22:22:41,221 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vsa16.c [2023-11-06 22:22:41,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:22:41,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:22:41,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:22:41,340 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=LoopsAndPotentialCycles, 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;@6ff426ad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:22:41,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:22:41,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 1078 states, 1071 states have (on average 1.661998132586368) internal successors, (1780), 1072 states have internal predecessors, (1780), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:22:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-06 22:22:41,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:41,362 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] [2023-11-06 22:22:41,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:41,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:41,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1008405330, now seen corresponding path program 1 times [2023-11-06 22:22:41,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:41,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701946607] [2023-11-06 22:22:41,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:41,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:42,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:42,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:42,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701946607] [2023-11-06 22:22:42,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701946607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:42,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:42,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:22:42,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724629084] [2023-11-06 22:22:42,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:42,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:22:42,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:42,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:22:42,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:22:42,419 INFO L87 Difference]: Start difference. First operand has 1078 states, 1071 states have (on average 1.661998132586368) internal successors, (1780), 1072 states have internal predecessors, (1780), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:42,856 INFO L93 Difference]: Finished difference Result 3144 states and 5232 transitions. [2023-11-06 22:22:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:22:42,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-06 22:22:42,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:42,895 INFO L225 Difference]: With dead ends: 3144 [2023-11-06 22:22:42,895 INFO L226 Difference]: Without dead ends: 2107 [2023-11-06 22:22:42,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:22:42,917 INFO L413 NwaCegarLoop]: 3410 mSDtfsCounter, 1707 mSDsluCounter, 11996 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 15406 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:42,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 15406 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:22:42,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2023-11-06 22:22:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1080. [2023-11-06 22:22:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1072 states have (on average 1.6585820895522387) internal successors, (1778), 1073 states have internal predecessors, (1778), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:22:43,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1788 transitions. [2023-11-06 22:22:43,081 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1788 transitions. Word has length 43 [2023-11-06 22:22:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:43,082 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1788 transitions. [2023-11-06 22:22:43,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1788 transitions. [2023-11-06 22:22:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:22:43,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:43,085 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] [2023-11-06 22:22:43,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:22:43,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:43,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash -818076126, now seen corresponding path program 1 times [2023-11-06 22:22:43,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:43,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664127957] [2023-11-06 22:22:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:43,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:43,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:43,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664127957] [2023-11-06 22:22:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664127957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:43,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:43,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:22:43,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098925983] [2023-11-06 22:22:43,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:43,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:22:43,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:43,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:22:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:22:43,390 INFO L87 Difference]: Start difference. First operand 1080 states and 1788 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:43,478 INFO L93 Difference]: Finished difference Result 2122 states and 3513 transitions. [2023-11-06 22:22:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:22:43,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-11-06 22:22:43,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:43,487 INFO L225 Difference]: With dead ends: 2122 [2023-11-06 22:22:43,487 INFO L226 Difference]: Without dead ends: 1083 [2023-11-06 22:22:43,494 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 [2023-11-06 22:22:43,496 INFO L413 NwaCegarLoop]: 1780 mSDtfsCounter, 1 mSDsluCounter, 3551 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5331 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:43,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5331 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:22:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-11-06 22:22:43,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1082. [2023-11-06 22:22:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1074 states have (on average 1.6573556797020483) internal successors, (1780), 1075 states have internal predecessors, (1780), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:22:43,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1790 transitions. [2023-11-06 22:22:43,532 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1790 transitions. Word has length 44 [2023-11-06 22:22:43,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:43,532 INFO L495 AbstractCegarLoop]: Abstraction has 1082 states and 1790 transitions. [2023-11-06 22:22:43,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1790 transitions. [2023-11-06 22:22:43,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 22:22:43,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:43,537 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] [2023-11-06 22:22:43,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:22:43,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:43,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1104278422, now seen corresponding path program 1 times [2023-11-06 22:22:43,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:43,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795676863] [2023-11-06 22:22:43,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:43,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:43,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:43,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795676863] [2023-11-06 22:22:43,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795676863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:43,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:43,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:22:43,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360988292] [2023-11-06 22:22:43,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:43,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:22:43,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:43,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:22:43,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:22:43,908 INFO L87 Difference]: Start difference. First operand 1082 states and 1790 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:44,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:44,188 INFO L93 Difference]: Finished difference Result 3154 states and 5228 transitions. [2023-11-06 22:22:44,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:22:44,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-11-06 22:22:44,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:44,203 INFO L225 Difference]: With dead ends: 3154 [2023-11-06 22:22:44,203 INFO L226 Difference]: Without dead ends: 2113 [2023-11-06 22:22:44,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:22:44,214 INFO L413 NwaCegarLoop]: 3383 mSDtfsCounter, 3524 mSDsluCounter, 5153 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3528 SdHoareTripleChecker+Valid, 8536 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:44,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3528 Valid, 8536 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:22:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2023-11-06 22:22:44,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1085. [2023-11-06 22:22:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1077 states have (on average 1.6555246053853296) internal successors, (1783), 1078 states have internal predecessors, (1783), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:22:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1793 transitions. [2023-11-06 22:22:44,269 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1793 transitions. Word has length 45 [2023-11-06 22:22:44,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:44,273 INFO L495 AbstractCegarLoop]: Abstraction has 1085 states and 1793 transitions. [2023-11-06 22:22:44,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:44,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1793 transitions. [2023-11-06 22:22:44,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 22:22:44,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:44,281 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] [2023-11-06 22:22:44,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:22:44,283 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:44,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash -424220052, now seen corresponding path program 1 times [2023-11-06 22:22:44,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:44,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394382801] [2023-11-06 22:22:44,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:44,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:45,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:45,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394382801] [2023-11-06 22:22:45,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394382801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:45,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:45,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:22:45,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126914742] [2023-11-06 22:22:45,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:45,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:22:45,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:45,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:22:45,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:22:45,412 INFO L87 Difference]: Start difference. First operand 1085 states and 1793 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:45,953 INFO L93 Difference]: Finished difference Result 4202 states and 6962 transitions. [2023-11-06 22:22:45,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:22:45,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-11-06 22:22:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:45,975 INFO L225 Difference]: With dead ends: 4202 [2023-11-06 22:22:45,975 INFO L226 Difference]: Without dead ends: 3158 [2023-11-06 22:22:45,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:22:45,986 INFO L413 NwaCegarLoop]: 3362 mSDtfsCounter, 7009 mSDsluCounter, 10202 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7017 SdHoareTripleChecker+Valid, 13564 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:45,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7017 Valid, 13564 Invalid, 122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:22:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2023-11-06 22:22:46,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 1089. [2023-11-06 22:22:46,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1081 states have (on average 1.6540240518038853) internal successors, (1788), 1082 states have internal predecessors, (1788), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:22:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1798 transitions. [2023-11-06 22:22:46,044 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1798 transitions. Word has length 45 [2023-11-06 22:22:46,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:46,044 INFO L495 AbstractCegarLoop]: Abstraction has 1089 states and 1798 transitions. [2023-11-06 22:22:46,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:46,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1798 transitions. [2023-11-06 22:22:46,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:22:46,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:46,046 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] [2023-11-06 22:22:46,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:22:46,046 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:46,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:46,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1112362168, now seen corresponding path program 1 times [2023-11-06 22:22:46,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:46,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173192584] [2023-11-06 22:22:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:46,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:46,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:46,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173192584] [2023-11-06 22:22:46,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173192584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:46,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:46,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:22:46,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732412656] [2023-11-06 22:22:46,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:46,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:22:46,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:46,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:22:46,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:22:46,621 INFO L87 Difference]: Start difference. First operand 1089 states and 1798 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:46,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:46,948 INFO L93 Difference]: Finished difference Result 2150 states and 3549 transitions. [2023-11-06 22:22:46,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:22:46,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-11-06 22:22:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:46,957 INFO L225 Difference]: With dead ends: 2150 [2023-11-06 22:22:46,957 INFO L226 Difference]: Without dead ends: 1102 [2023-11-06 22:22:46,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:22:46,960 INFO L413 NwaCegarLoop]: 1777 mSDtfsCounter, 6826 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6826 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:46,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6826 Valid, 3779 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:22:46,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2023-11-06 22:22:46,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1084. [2023-11-06 22:22:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1076 states have (on average 1.6552044609665428) internal successors, (1781), 1077 states have internal predecessors, (1781), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:22:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1791 transitions. [2023-11-06 22:22:47,000 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1791 transitions. Word has length 46 [2023-11-06 22:22:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:47,002 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1791 transitions. [2023-11-06 22:22:47,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1791 transitions. [2023-11-06 22:22:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:22:47,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:47,006 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] [2023-11-06 22:22:47,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:22:47,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:47,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash -432303798, now seen corresponding path program 1 times [2023-11-06 22:22:47,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:47,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107143305] [2023-11-06 22:22:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:47,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:47,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:47,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107143305] [2023-11-06 22:22:47,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107143305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:47,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:47,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:22:47,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448159063] [2023-11-06 22:22:47,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:47,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:22:47,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:22:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:22:47,541 INFO L87 Difference]: Start difference. First operand 1084 states and 1791 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:49,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:49,026 INFO L93 Difference]: Finished difference Result 2141 states and 3536 transitions. [2023-11-06 22:22:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:22:49,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-11-06 22:22:49,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:49,034 INFO L225 Difference]: With dead ends: 2141 [2023-11-06 22:22:49,034 INFO L226 Difference]: Without dead ends: 1098 [2023-11-06 22:22:49,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:22:49,037 INFO L413 NwaCegarLoop]: 1427 mSDtfsCounter, 3431 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3431 SdHoareTripleChecker+Valid, 4357 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:49,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3431 Valid, 4357 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 22:22:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2023-11-06 22:22:49,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1084. [2023-11-06 22:22:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1076 states have (on average 1.654275092936803) internal successors, (1780), 1077 states have internal predecessors, (1780), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:22:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1790 transitions. [2023-11-06 22:22:49,091 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1790 transitions. Word has length 46 [2023-11-06 22:22:49,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:49,092 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1790 transitions. [2023-11-06 22:22:49,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:49,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1790 transitions. [2023-11-06 22:22:49,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:22:49,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:49,096 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] [2023-11-06 22:22:49,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:22:49,097 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:49,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:49,098 INFO L85 PathProgramCache]: Analyzing trace with hash -489562100, now seen corresponding path program 1 times [2023-11-06 22:22:49,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:49,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805202335] [2023-11-06 22:22:49,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:49,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:49,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:49,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:22:49,338 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:22:49,339 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:22:49,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:22:49,344 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:49,348 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:22:49,450 WARN L316 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-06 22:22:49,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:22:49 BoogieIcfgContainer [2023-11-06 22:22:49,487 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:22:49,488 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:22:49,489 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:22:49,489 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:22:49,490 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:41" (3/4) ... [2023-11-06 22:22:49,493 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:22:49,494 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:22:49,495 INFO L158 Benchmark]: Toolchain (without parser) took 17004.56ms. Allocated memory was 146.8MB in the beginning and 954.2MB in the end (delta: 807.4MB). Free memory was 97.0MB in the beginning and 668.8MB in the end (delta: -571.8MB). Peak memory consumption was 237.5MB. Max. memory is 16.1GB. [2023-11-06 22:22:49,496 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 146.8MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:22:49,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1426.90ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 97.0MB in the beginning and 104.4MB in the end (delta: -7.5MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2023-11-06 22:22:49,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 910.56ms. Allocated memory is still 199.2MB. Free memory was 104.4MB in the beginning and 73.9MB in the end (delta: 30.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2023-11-06 22:22:49,497 INFO L158 Benchmark]: Boogie Preprocessor took 957.03ms. Allocated memory was 199.2MB in the beginning and 381.7MB in the end (delta: 182.5MB). Free memory was 73.9MB in the beginning and 243.6MB in the end (delta: -169.6MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2023-11-06 22:22:49,498 INFO L158 Benchmark]: RCFGBuilder took 5420.71ms. Allocated memory was 381.7MB in the beginning and 677.4MB in the end (delta: 295.7MB). Free memory was 243.6MB in the beginning and 359.0MB in the end (delta: -115.4MB). Peak memory consumption was 189.3MB. Max. memory is 16.1GB. [2023-11-06 22:22:49,498 INFO L158 Benchmark]: TraceAbstraction took 8274.16ms. Allocated memory was 677.4MB in the beginning and 954.2MB in the end (delta: 276.8MB). Free memory was 358.0MB in the beginning and 668.8MB in the end (delta: -310.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:22:49,499 INFO L158 Benchmark]: Witness Printer took 6.12ms. Allocated memory is still 954.2MB. Free memory is still 668.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:22:49,502 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 146.8MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1426.90ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 97.0MB in the beginning and 104.4MB in the end (delta: -7.5MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 910.56ms. Allocated memory is still 199.2MB. Free memory was 104.4MB in the beginning and 73.9MB in the end (delta: 30.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 957.03ms. Allocated memory was 199.2MB in the beginning and 381.7MB in the end (delta: 182.5MB). Free memory was 73.9MB in the beginning and 243.6MB in the end (delta: -169.6MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * RCFGBuilder took 5420.71ms. Allocated memory was 381.7MB in the beginning and 677.4MB in the end (delta: 295.7MB). Free memory was 243.6MB in the beginning and 359.0MB in the end (delta: -115.4MB). Peak memory consumption was 189.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8274.16ms. Allocated memory was 677.4MB in the beginning and 954.2MB in the end (delta: 276.8MB). Free memory was 358.0MB in the beginning and 668.8MB in the end (delta: -310.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.12ms. Allocated memory is still 954.2MB. Free memory is still 668.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 344. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 12); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (12 - 1); [L35] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L36] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L38] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 3); [L39] const SORT_37 msb_SORT_37 = (SORT_37)1 << (3 - 1); [L41] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 2); [L42] const SORT_44 msb_SORT_44 = (SORT_44)1 << (2 - 1); [L44] const SORT_295 mask_SORT_295 = (SORT_295)-1 >> (sizeof(SORT_295) * 8 - 4); [L45] const SORT_295 msb_SORT_295 = (SORT_295)1 << (4 - 1); [L47] const SORT_297 mask_SORT_297 = (SORT_297)-1 >> (sizeof(SORT_297) * 8 - 5); [L48] const SORT_297 msb_SORT_297 = (SORT_297)1 << (5 - 1); [L50] const SORT_299 mask_SORT_299 = (SORT_299)-1 >> (sizeof(SORT_299) * 8 - 6); [L51] const SORT_299 msb_SORT_299 = (SORT_299)1 << (6 - 1); [L53] const SORT_301 mask_SORT_301 = (SORT_301)-1 >> (sizeof(SORT_301) * 8 - 7); [L54] const SORT_301 msb_SORT_301 = (SORT_301)1 << (7 - 1); [L56] const SORT_303 mask_SORT_303 = (SORT_303)-1 >> (sizeof(SORT_303) * 8 - 8); [L57] const SORT_303 msb_SORT_303 = (SORT_303)1 << (8 - 1); [L59] const SORT_305 mask_SORT_305 = (SORT_305)-1 >> (sizeof(SORT_305) * 8 - 9); [L60] const SORT_305 msb_SORT_305 = (SORT_305)1 << (9 - 1); [L62] const SORT_307 mask_SORT_307 = (SORT_307)-1 >> (sizeof(SORT_307) * 8 - 10); [L63] const SORT_307 msb_SORT_307 = (SORT_307)1 << (10 - 1); [L65] const SORT_309 mask_SORT_309 = (SORT_309)-1 >> (sizeof(SORT_309) * 8 - 11); [L66] const SORT_309 msb_SORT_309 = (SORT_309)1 << (11 - 1); [L68] const SORT_312 mask_SORT_312 = (SORT_312)-1 >> (sizeof(SORT_312) * 8 - 13); [L69] const SORT_312 msb_SORT_312 = (SORT_312)1 << (13 - 1); [L71] const SORT_314 mask_SORT_314 = (SORT_314)-1 >> (sizeof(SORT_314) * 8 - 14); [L72] const SORT_314 msb_SORT_314 = (SORT_314)1 << (14 - 1); [L74] const SORT_316 mask_SORT_316 = (SORT_316)-1 >> (sizeof(SORT_316) * 8 - 15); [L75] const SORT_316 msb_SORT_316 = (SORT_316)1 << (15 - 1); [L77] const SORT_533 mask_SORT_533 = (SORT_533)-1 >> (sizeof(SORT_533) * 8 - 17); [L78] const SORT_533 msb_SORT_533 = (SORT_533)1 << (17 - 1); [L80] const SORT_6 var_7 = 0; [L81] const SORT_11 var_13 = 0; [L82] const SORT_3 var_21 = 0; [L83] const SORT_1 var_26 = 0; [L84] const SORT_37 var_38 = 0; [L85] const SORT_1 var_57 = 1; [L86] const SORT_37 var_93 = 2; [L87] const SORT_37 var_97 = 1; [L88] const SORT_37 var_105 = 4; [L89] const SORT_37 var_107 = 5; [L90] const SORT_37 var_111 = 3; [L91] const SORT_6 var_128 = 2; [L92] const SORT_44 var_138 = 0; [L93] const SORT_3 var_145 = 65535; [L94] const SORT_297 var_534 = 0; [L95] const SORT_301 var_626 = 5; [L96] const SORT_301 var_630 = 4; [L97] const SORT_301 var_634 = 3; [L98] const SORT_301 var_638 = 2; [L99] const SORT_301 var_642 = 1; [L100] const SORT_301 var_646 = 0; [L102] SORT_1 input_2; [L103] SORT_3 input_4; [L104] SORT_3 input_5; [L105] SORT_6 input_114; [L106] SORT_6 input_115; [L107] SORT_6 input_116; [L108] SORT_3 input_134; [L109] SORT_3 input_135; [L110] SORT_3 input_136; [L111] SORT_3 input_144; [L112] SORT_3 input_153; [L113] SORT_3 input_154; [L114] SORT_3 input_155; [L115] SORT_3 input_158; [L116] SORT_3 input_176; [L117] SORT_3 input_177; [L118] SORT_3 input_178; [L119] SORT_3 input_181; [L120] SORT_3 input_183; [L121] SORT_44 input_197; [L122] SORT_44 input_198; [L123] SORT_44 input_199; [L124] SORT_3 input_529; [L125] SORT_3 input_530; [L126] SORT_3 input_531; [L127] SORT_3 input_532; [L128] SORT_3 input_555; [L129] SORT_3 input_557; [L130] SORT_3 input_559; [L131] SORT_3 input_563; [L132] SORT_3 input_564; [L133] SORT_3 input_565; [L134] SORT_3 input_566; [L135] SORT_3 input_585; [L136] SORT_3 input_589; [L137] SORT_3 input_591; [L138] SORT_3 input_598; [L139] SORT_3 input_600; [L140] SORT_3 input_605; [L141] SORT_3 input_607; [L142] SORT_3 input_611; [L143] SORT_3 input_612; [L144] SORT_3 input_613; [L145] SORT_3 input_614; [L146] SORT_3 input_615; [L147] SORT_3 input_616; [L148] SORT_3 input_617; [L149] SORT_3 input_618; [L150] SORT_3 input_619; [L151] SORT_3 input_620; [L152] SORT_3 input_621; [L153] SORT_3 input_622; [L154] SORT_3 input_629; [L155] SORT_3 input_633; [L156] SORT_3 input_637; [L157] SORT_3 input_641; [L158] SORT_3 input_645; [L159] SORT_3 input_650; [L160] SORT_3 input_656; [L161] SORT_3 input_658; [L162] SORT_3 input_660; [L163] SORT_3 input_662; [L164] SORT_3 input_665; [L165] SORT_3 input_671; [L166] SORT_3 input_673; [L167] SORT_3 input_675; [L168] SORT_3 input_678; [L169] SORT_3 input_684; [L170] SORT_3 input_686; [L171] SORT_3 input_689; [L172] SORT_3 input_695; [L173] SORT_3 input_698; [L174] SORT_3 input_705; [L175] SORT_3 input_710; [L176] SORT_1 input_729; [L177] SORT_1 input_730; [L178] SORT_1 input_731; [L179] SORT_1 input_732; [L180] SORT_1 input_735; [L181] SORT_1 input_737; [L182] SORT_1 input_739; [L183] SORT_1 input_744; [L184] SORT_1 input_746; [L185] SORT_1 input_751; [L186] SORT_3 input_764; [L187] SORT_3 input_765; [L188] SORT_3 input_766; [L190] EXPR __VERIFIER_nondet_ushort() & mask_SORT_6 VAL [__VERIFIER_nondet_ushort() & mask_SORT_6=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L190] SORT_6 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L191] EXPR __VERIFIER_nondet_ushort() & mask_SORT_6 VAL [__VERIFIER_nondet_ushort() & mask_SORT_6=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L191] SORT_6 state_15 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L192] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L192] SORT_3 state_22 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L193] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L193] SORT_3 state_24 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L194] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L194] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L195] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L195] SORT_3 state_30 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L196] EXPR __VERIFIER_nondet_uchar() & mask_SORT_37 VAL [__VERIFIER_nondet_uchar() & mask_SORT_37=0, __VERIFIER_nondet_uchar()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L196] SORT_37 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_37; [L197] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L197] SORT_3 state_80 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L198] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L198] SORT_3 state_82 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L199] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L199] SORT_3 state_84 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L200] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L200] SORT_1 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L201] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L201] SORT_3 state_88 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L202] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [__VERIFIER_nondet_ushort() & mask_SORT_3=0, __VERIFIER_nondet_ushort()=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L202] SORT_3 state_90 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L204] SORT_6 init_9_arg_1 = var_7; [L205] state_8 = init_9_arg_1 [L206] SORT_6 init_16_arg_1 = var_7; [L207] state_15 = init_16_arg_1 [L208] SORT_3 init_23_arg_1 = var_21; [L209] state_22 = init_23_arg_1 [L210] SORT_3 init_25_arg_1 = var_21; [L211] state_24 = init_25_arg_1 [L212] SORT_3 init_29_arg_1 = var_21; [L213] state_28 = init_29_arg_1 [L214] SORT_3 init_31_arg_1 = var_21; [L215] state_30 = init_31_arg_1 [L216] SORT_37 init_40_arg_1 = var_38; [L217] state_39 = init_40_arg_1 [L218] SORT_3 init_81_arg_1 = var_21; [L219] state_80 = init_81_arg_1 [L220] SORT_3 init_83_arg_1 = var_21; [L221] state_82 = init_83_arg_1 [L222] SORT_3 init_85_arg_1 = var_21; [L223] state_84 = init_85_arg_1 [L224] SORT_1 init_87_arg_1 = var_26; [L225] state_86 = init_87_arg_1 [L226] SORT_3 init_89_arg_1 = var_21; [L227] state_88 = init_89_arg_1 [L228] SORT_3 init_91_arg_1 = var_21; [L229] state_90 = init_91_arg_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L232] input_2 = __VERIFIER_nondet_uchar() [L233] input_4 = __VERIFIER_nondet_ushort() [L234] input_5 = __VERIFIER_nondet_ushort() [L235] input_114 = __VERIFIER_nondet_ushort() [L236] input_115 = __VERIFIER_nondet_ushort() [L237] input_116 = __VERIFIER_nondet_ushort() [L238] input_134 = __VERIFIER_nondet_ushort() [L239] input_135 = __VERIFIER_nondet_ushort() [L240] input_136 = __VERIFIER_nondet_ushort() [L241] input_144 = __VERIFIER_nondet_ushort() [L242] input_153 = __VERIFIER_nondet_ushort() [L243] input_154 = __VERIFIER_nondet_ushort() [L244] input_155 = __VERIFIER_nondet_ushort() [L245] input_158 = __VERIFIER_nondet_ushort() [L246] input_176 = __VERIFIER_nondet_ushort() [L247] input_177 = __VERIFIER_nondet_ushort() [L248] input_178 = __VERIFIER_nondet_ushort() [L249] input_181 = __VERIFIER_nondet_ushort() [L250] input_183 = __VERIFIER_nondet_ushort() [L251] input_197 = __VERIFIER_nondet_uchar() [L252] input_198 = __VERIFIER_nondet_uchar() [L253] input_199 = __VERIFIER_nondet_uchar() [L254] input_529 = __VERIFIER_nondet_ushort() [L255] input_530 = __VERIFIER_nondet_ushort() [L256] input_531 = __VERIFIER_nondet_ushort() [L257] input_532 = __VERIFIER_nondet_ushort() [L258] input_555 = __VERIFIER_nondet_ushort() [L259] input_557 = __VERIFIER_nondet_ushort() [L260] input_559 = __VERIFIER_nondet_ushort() [L261] input_563 = __VERIFIER_nondet_ushort() [L262] input_564 = __VERIFIER_nondet_ushort() [L263] input_565 = __VERIFIER_nondet_ushort() [L264] input_566 = __VERIFIER_nondet_ushort() [L265] input_585 = __VERIFIER_nondet_ushort() [L266] input_589 = __VERIFIER_nondet_ushort() [L267] input_591 = __VERIFIER_nondet_ushort() [L268] input_598 = __VERIFIER_nondet_ushort() [L269] input_600 = __VERIFIER_nondet_ushort() [L270] input_605 = __VERIFIER_nondet_ushort() [L271] input_607 = __VERIFIER_nondet_ushort() [L272] input_611 = __VERIFIER_nondet_ushort() [L273] input_612 = __VERIFIER_nondet_ushort() [L274] input_613 = __VERIFIER_nondet_ushort() [L275] input_614 = __VERIFIER_nondet_ushort() [L276] input_615 = __VERIFIER_nondet_ushort() [L277] input_616 = __VERIFIER_nondet_ushort() [L278] input_617 = __VERIFIER_nondet_ushort() [L279] input_618 = __VERIFIER_nondet_ushort() [L280] input_619 = __VERIFIER_nondet_ushort() [L281] input_620 = __VERIFIER_nondet_ushort() [L282] input_621 = __VERIFIER_nondet_ushort() [L283] input_622 = __VERIFIER_nondet_ushort() [L284] input_629 = __VERIFIER_nondet_ushort() [L285] input_633 = __VERIFIER_nondet_ushort() [L286] input_637 = __VERIFIER_nondet_ushort() [L287] input_641 = __VERIFIER_nondet_ushort() [L288] input_645 = __VERIFIER_nondet_ushort() [L289] input_650 = __VERIFIER_nondet_ushort() [L290] input_656 = __VERIFIER_nondet_ushort() [L291] input_658 = __VERIFIER_nondet_ushort() [L292] input_660 = __VERIFIER_nondet_ushort() [L293] input_662 = __VERIFIER_nondet_ushort() [L294] input_665 = __VERIFIER_nondet_ushort() [L295] input_671 = __VERIFIER_nondet_ushort() [L296] input_673 = __VERIFIER_nondet_ushort() [L297] input_675 = __VERIFIER_nondet_ushort() [L298] input_678 = __VERIFIER_nondet_ushort() [L299] input_684 = __VERIFIER_nondet_ushort() [L300] input_686 = __VERIFIER_nondet_ushort() [L301] input_689 = __VERIFIER_nondet_ushort() [L302] input_695 = __VERIFIER_nondet_ushort() [L303] input_698 = __VERIFIER_nondet_ushort() [L304] input_705 = __VERIFIER_nondet_ushort() [L305] input_710 = __VERIFIER_nondet_ushort() [L306] input_729 = __VERIFIER_nondet_uchar() [L307] input_730 = __VERIFIER_nondet_uchar() [L308] input_731 = __VERIFIER_nondet_uchar() [L309] input_732 = __VERIFIER_nondet_uchar() [L310] input_735 = __VERIFIER_nondet_uchar() [L311] input_737 = __VERIFIER_nondet_uchar() [L312] input_739 = __VERIFIER_nondet_uchar() [L313] input_744 = __VERIFIER_nondet_uchar() [L314] input_746 = __VERIFIER_nondet_uchar() [L315] input_751 = __VERIFIER_nondet_uchar() [L316] input_764 = __VERIFIER_nondet_ushort() [L317] input_765 = __VERIFIER_nondet_ushort() [L318] input_766 = __VERIFIER_nondet_ushort() [L321] SORT_6 var_10_arg_0 = state_8; [L322] SORT_1 var_10 = var_10_arg_0 >> 0; [L323] SORT_1 var_52_arg_0 = var_10; VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_52_arg_0=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L324] EXPR var_52_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_52_arg_0 & mask_SORT_1=0, var_52_arg_0=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L324] var_52_arg_0 = var_52_arg_0 & mask_SORT_1 [L325] SORT_11 var_52 = var_52_arg_0; [L326] SORT_11 var_53_arg_0 = var_52; [L327] SORT_11 var_53_arg_1 = var_13; [L328] SORT_1 var_53 = var_53_arg_0 == var_53_arg_1; [L329] SORT_6 var_17_arg_0 = state_15; [L330] SORT_1 var_17 = var_17_arg_0 >> 0; [L331] SORT_1 var_54_arg_0 = var_17; VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54_arg_0=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L332] EXPR var_54_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54_arg_0 & mask_SORT_1=0, var_54_arg_0=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L332] var_54_arg_0 = var_54_arg_0 & mask_SORT_1 [L333] SORT_11 var_54 = var_54_arg_0; [L334] SORT_11 var_55_arg_0 = var_54; [L335] SORT_11 var_55_arg_1 = var_13; [L336] SORT_1 var_55 = var_55_arg_0 == var_55_arg_1; [L337] SORT_1 var_56_arg_0 = var_53; [L338] SORT_1 var_56_arg_1 = var_55; VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L339] EXPR var_56_arg_0 & var_56_arg_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56_arg_0 & var_56_arg_1=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L339] SORT_1 var_56 = var_56_arg_0 & var_56_arg_1; [L340] SORT_1 var_58_arg_0 = var_56; [L341] SORT_1 var_58 = ~var_58_arg_0; [L342] SORT_1 var_59_arg_0 = var_57; [L343] SORT_1 var_59_arg_1 = var_58; VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_58=254, var_58_arg_0=1, var_59_arg_0=1, var_59_arg_1=254, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L344] EXPR var_59_arg_0 & var_59_arg_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_58=254, var_58_arg_0=1, var_59_arg_0 & var_59_arg_1=1, var_59_arg_0=1, var_59_arg_1=254, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L344] SORT_1 var_59 = var_59_arg_0 & var_59_arg_1; [L345] EXPR var_59 & mask_SORT_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_58=254, var_58_arg_0=1, var_59 & mask_SORT_1=1, var_59=1, var_59_arg_0=1, var_59_arg_1=254, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L345] var_59 = var_59 & mask_SORT_1 [L346] SORT_1 bad_60_arg_0 = var_59; VAL [bad_60_arg_0=1, init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_58=254, var_58_arg_0=1, var_59=1, var_59_arg_0=1, var_59_arg_1=254, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L347] CALL __VERIFIER_assert(!(bad_60_arg_0)) VAL [\old(cond)=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 2 procedures, 1078 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22514 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22498 mSDsluCounter, 50973 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35834 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1378 IncrementalHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 15139 mSDtfsCounter, 1378 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1089occurred in iteration=4, 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, 6 MinimizatonAttempts, 4157 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 263 ConstructedInterpolants, 0 QuantifiedInterpolants, 877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2023-11-06 22:22:49,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:52,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:52,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-06 22:22:52,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:52,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:52,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:52,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:52,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:52,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:52,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:52,440 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:52,440 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:52,441 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:52,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:52,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:22:52,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:52,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:22:52,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:52,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:22:52,446 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:22:52,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:22:52,448 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:22:52,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:52,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:52,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:52,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:52,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:52,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:52,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:52,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:52,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:22:52,453 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:22:52,453 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:22:52,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:52,454 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:22:52,455 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:52,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:52,455 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:22:52,455 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:52,457 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_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 [2023-11-06 22:22:52,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:52,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:52,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:52,865 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:52,866 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:52,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2023-11-06 22:22:56,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:56,684 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:56,684 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2023-11-06 22:22:56,706 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/data/214069db5/4aa0d838dd614d3f951c99b5a7362a15/FLAG9f5481a88 [2023-11-06 22:22:56,721 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/data/214069db5/4aa0d838dd614d3f951c99b5a7362a15 [2023-11-06 22:22:56,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:56,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:56,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:56,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:56,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:56,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:56" (1/1) ... [2023-11-06 22:22:56,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a11253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:56, skipping insertion in model container [2023-11-06 22:22:56,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:56" (1/1) ... [2023-11-06 22:22:56,830 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:57,073 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_0978258b-cf56-4d89-b125-747be8f7e4af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2023-11-06 22:22:57,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:57,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:57,734 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_0978258b-cf56-4d89-b125-747be8f7e4af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2023-11-06 22:22:57,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:58,015 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:58,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58 WrapperNode [2023-11-06 22:22:58,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:58,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:58,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:58,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:58,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,240 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2539 [2023-11-06 22:22:58,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:58,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:58,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:58,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:58,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:58,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:58,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:58,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:58,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (1/1) ... [2023-11-06 22:22:58,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:58,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:58,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:58,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:22:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:22:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:22:59,095 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:59,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:23:03,949 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:23:03,956 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:23:03,956 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:23:03,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:03 BoogieIcfgContainer [2023-11-06 22:23:03,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:23:03,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:23:03,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:23:03,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:23:03,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:56" (1/3) ... [2023-11-06 22:23:03,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305fdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:03, skipping insertion in model container [2023-11-06 22:23:03,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:58" (2/3) ... [2023-11-06 22:23:03,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305fdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:03, skipping insertion in model container [2023-11-06 22:23:03,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:03" (3/3) ... [2023-11-06 22:23:03,972 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vsa16.c [2023-11-06 22:23:03,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:23:03,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:23:04,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:23:04,066 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=LoopsAndPotentialCycles, 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;@36f6c56e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:23:04,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:23:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:23:04,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:23:04,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:04,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:04,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:04,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:04,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1810462814, now seen corresponding path program 1 times [2023-11-06 22:23:04,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:04,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448356559] [2023-11-06 22:23:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:04,109 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 [2023-11-06 22:23:04,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:04,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:23:04,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:04,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-06 22:23:04,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:05,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:05,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:05,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:05,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448356559] [2023-11-06 22:23:05,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448356559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:05,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:05,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:23:05,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821822836] [2023-11-06 22:23:05,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:05,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:23:05,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:05,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:23:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:23:05,192 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:05,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:05,827 INFO L93 Difference]: Finished difference Result 50 states and 77 transitions. [2023-11-06 22:23:05,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:23:05,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 22:23:05,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:05,837 INFO L225 Difference]: With dead ends: 50 [2023-11-06 22:23:05,838 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:23:05,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:23:05,844 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:05,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 63 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:23:05,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:23:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2023-11-06 22:23:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:23:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-11-06 22:23:05,889 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 7 [2023-11-06 22:23:05,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:05,891 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-11-06 22:23:05,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-06 22:23:05,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:23:05,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:05,894 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:05,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-06 22:23:06,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:06,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:06,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:06,107 INFO L85 PathProgramCache]: Analyzing trace with hash -995691336, now seen corresponding path program 1 times [2023-11-06 22:23:06,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:06,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870209565] [2023-11-06 22:23:06,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:06,108 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 [2023-11-06 22:23:06,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:06,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:23:06,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:06,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 22:23:06,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:06,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:06,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:06,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870209565] [2023-11-06 22:23:06,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870209565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:06,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:06,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:23:06,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182218741] [2023-11-06 22:23:06,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:06,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:23:06,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:23:06,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:23:06,925 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:07,392 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2023-11-06 22:23:07,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:23:07,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-06 22:23:07,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:07,394 INFO L225 Difference]: With dead ends: 39 [2023-11-06 22:23:07,395 INFO L226 Difference]: Without dead ends: 37 [2023-11-06 22:23:07,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:23:07,397 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:07,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 81 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:23:07,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-06 22:23:07,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2023-11-06 22:23:07,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 20 states have internal predecessors, (20), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:23:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-06 22:23:07,408 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 13 [2023-11-06 22:23:07,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:07,408 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-06 22:23:07,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-06 22:23:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:23:07,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:07,410 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:07,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:07,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:07,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:07,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash -53539184, now seen corresponding path program 1 times [2023-11-06 22:23:07,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:07,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538118841] [2023-11-06 22:23:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:07,622 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 [2023-11-06 22:23:07,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:07,646 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:23:07,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:08,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-06 22:23:08,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:23:08,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:08,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:08,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538118841] [2023-11-06 22:23:08,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538118841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:08,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:08,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:23:08,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424188243] [2023-11-06 22:23:08,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:08,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:23:08,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:08,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:23:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:23:08,359 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:23:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:09,018 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2023-11-06 22:23:09,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:23:09,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-06 22:23:09,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:09,021 INFO L225 Difference]: With dead ends: 45 [2023-11-06 22:23:09,021 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:23:09,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:23:09,023 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:09,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 90 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:23:09,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:23:09,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2023-11-06 22:23:09,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 24 states have internal predecessors, (24), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-06 22:23:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2023-11-06 22:23:09,037 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 19 [2023-11-06 22:23:09,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:09,038 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2023-11-06 22:23:09,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:23:09,038 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2023-11-06 22:23:09,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-06 22:23:09,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:09,040 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:09,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:09,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:09,254 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:09,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:09,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1735839898, now seen corresponding path program 1 times [2023-11-06 22:23:09,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:09,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169689999] [2023-11-06 22:23:09,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:09,256 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 [2023-11-06 22:23:09,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:09,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:23:09,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (5)] Waiting until timeout for monitored process [2023-11-06 22:23:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:09,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-06 22:23:09,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:10,665 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 22:23:10,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:10,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:10,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169689999] [2023-11-06 22:23:10,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169689999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:10,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:10,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:23:10,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630931135] [2023-11-06 22:23:10,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:10,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:23:10,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:10,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:23:10,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:23:10,674 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:23:11,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:11,585 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2023-11-06 22:23:11,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:23:11,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2023-11-06 22:23:11,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:11,588 INFO L225 Difference]: With dead ends: 51 [2023-11-06 22:23:11,588 INFO L226 Difference]: Without dead ends: 49 [2023-11-06 22:23:11,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:23:11,590 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:11,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 135 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:23:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-06 22:23:11,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2023-11-06 22:23:11,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-06 22:23:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2023-11-06 22:23:11,604 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 25 [2023-11-06 22:23:11,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:11,605 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2023-11-06 22:23:11,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:23:11,605 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2023-11-06 22:23:11,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-06 22:23:11,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:11,607 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:11,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (5)] Ended with exit code 0 [2023-11-06 22:23:11,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:11,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:11,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:11,820 INFO L85 PathProgramCache]: Analyzing trace with hash 2127961366, now seen corresponding path program 1 times [2023-11-06 22:23:11,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:11,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81963713] [2023-11-06 22:23:11,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:11,824 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 [2023-11-06 22:23:11,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:11,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:23:11,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (6)] Waiting until timeout for monitored process [2023-11-06 22:23:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:16,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-06 22:23:16,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:17,544 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-06 22:23:17,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:19,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:19,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81963713] [2023-11-06 22:23:19,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81963713] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:23:19,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1185057890] [2023-11-06 22:23:19,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:19,475 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:23:19,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:23:19,481 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:23:19,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-06 22:23:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:21,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-06 22:23:21,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-06 22:23:22,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:23,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1185057890] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:23:23,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:23:23,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-11-06 22:23:23,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766522278] [2023-11-06 22:23:23,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:23:23,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:23:23,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:23:23,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:23:23,948 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:23:25,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:25,336 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2023-11-06 22:23:25,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:23:25,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 32 [2023-11-06 22:23:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:25,343 INFO L225 Difference]: With dead ends: 58 [2023-11-06 22:23:25,343 INFO L226 Difference]: Without dead ends: 56 [2023-11-06 22:23:25,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 63 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:23:25,347 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:25,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 68 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:23:25,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-06 22:23:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2023-11-06 22:23:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.03125) internal successors, (33), 33 states have internal predecessors, (33), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-06 22:23:25,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2023-11-06 22:23:25,366 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 32 [2023-11-06 22:23:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:25,367 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2023-11-06 22:23:25,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:23:25,367 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2023-11-06 22:23:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-06 22:23:25,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:25,369 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:25,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:25,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:25,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:23:25,771 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:25,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:25,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2047029104, now seen corresponding path program 2 times [2023-11-06 22:23:25,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:25,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443023678] [2023-11-06 22:23:25,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:23:25,774 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 [2023-11-06 22:23:25,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:25,775 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:23:25,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (8)] Waiting until timeout for monitored process [2023-11-06 22:23:30,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:23:30,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:23:30,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 259 conjunts are in the unsatisfiable core [2023-11-06 22:23:30,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-06 22:23:42,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:42,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:42,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443023678] [2023-11-06 22:23:42,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443023678] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:23:42,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1310630884] [2023-11-06 22:23:42,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:23:42,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:23:42,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:23:42,395 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:23:42,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-06 22:23:44,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:23:44,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:23:44,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 262 conjunts are in the unsatisfiable core [2023-11-06 22:23:44,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-06 22:23:55,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:56,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1310630884] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:23:56,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:23:56,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-06 22:23:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747722545] [2023-11-06 22:23:56,182 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:23:56,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:23:56,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:56,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:23:56,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:23:56,184 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:23:57,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:57,108 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2023-11-06 22:23:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:23:57,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2023-11-06 22:23:57,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:57,112 INFO L225 Difference]: With dead ends: 64 [2023-11-06 22:23:57,112 INFO L226 Difference]: Without dead ends: 62 [2023-11-06 22:23:57,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:23:57,114 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:57,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 75 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:23:57,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-06 22:23:57,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2023-11-06 22:23:57,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 37 states have internal predecessors, (37), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:23:57,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2023-11-06 22:23:57,132 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 38 [2023-11-06 22:23:57,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:57,132 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2023-11-06 22:23:57,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:23:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2023-11-06 22:23:57,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:23:57,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:57,135 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:57,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:57,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:57,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:23:57,549 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:57,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:57,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1813143368, now seen corresponding path program 3 times [2023-11-06 22:23:57,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:57,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287494023] [2023-11-06 22:23:57,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:23:57,551 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 [2023-11-06 22:23:57,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:57,552 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:23:57,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (10)] Waiting until timeout for monitored process [2023-11-06 22:24:00,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:24:00,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:00,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-06 22:24:00,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:00,985 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:24:00,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:01,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:01,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287494023] [2023-11-06 22:24:01,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287494023] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:01,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1757097238] [2023-11-06 22:24:01,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:24:01,132 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:24:01,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:24:01,137 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:24:01,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-06 22:24:03,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:24:03,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:03,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-06 22:24:03,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:24:03,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:03,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1757097238] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:03,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:24:03,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-06 22:24:03,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091348711] [2023-11-06 22:24:03,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:03,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:24:03,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:03,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:24:03,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:24:03,630 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:24:04,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:04,582 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2023-11-06 22:24:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:24:04,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2023-11-06 22:24:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:04,585 INFO L225 Difference]: With dead ends: 70 [2023-11-06 22:24:04,585 INFO L226 Difference]: Without dead ends: 68 [2023-11-06 22:24:04,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:24:04,586 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:04,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 94 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:24:04,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-06 22:24:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60. [2023-11-06 22:24:04,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 40 states have (on average 1.025) internal successors, (41), 41 states have internal predecessors, (41), 11 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:24:04,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2023-11-06 22:24:04,604 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 44 [2023-11-06 22:24:04,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:04,604 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2023-11-06 22:24:04,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:24:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2023-11-06 22:24:04,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:24:04,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:04,607 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:04,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:04,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:05,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:24:05,017 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:05,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:05,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1099634206, now seen corresponding path program 4 times [2023-11-06 22:24:05,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:05,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491046184] [2023-11-06 22:24:05,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:24:05,021 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 [2023-11-06 22:24:05,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:05,022 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:24:05,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (12)] Waiting until timeout for monitored process [2023-11-06 22:24:09,922 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:24:09,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:09,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 2153 conjuncts, 327 conjunts are in the unsatisfiable core [2023-11-06 22:24:09,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:23,952 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-06 22:24:23,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:26,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:26,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491046184] [2023-11-06 22:24:26,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491046184] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:26,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [973399876] [2023-11-06 22:24:26,220 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:24:26,220 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:24:26,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:24:26,221 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:24:26,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-06 22:24:28,398 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:24:28,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:28,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 2153 conjuncts, 333 conjunts are in the unsatisfiable core [2023-11-06 22:24:28,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:42,814 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-06 22:24:42,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:44,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [973399876] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:44,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:24:44,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2023-11-06 22:24:44,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173859381] [2023-11-06 22:24:44,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:44,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:24:44,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:44,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:24:44,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:24:44,764 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-06 22:24:46,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:46,361 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2023-11-06 22:24:46,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:24:46,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 50 [2023-11-06 22:24:46,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:46,363 INFO L225 Difference]: With dead ends: 76 [2023-11-06 22:24:46,364 INFO L226 Difference]: Without dead ends: 74 [2023-11-06 22:24:46,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:24:46,365 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 16 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:46,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 191 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-06 22:24:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-06 22:24:46,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 66. [2023-11-06 22:24:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 45 states have internal predecessors, (45), 12 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-06 22:24:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2023-11-06 22:24:46,383 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 50 [2023-11-06 22:24:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:46,383 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2023-11-06 22:24:46,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-06 22:24:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2023-11-06 22:24:46,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:24:46,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:46,386 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:24:46,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:46,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:46,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:24:46,788 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:46,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:46,789 INFO L85 PathProgramCache]: Analyzing trace with hash -623003810, now seen corresponding path program 5 times [2023-11-06 22:24:46,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:46,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062558339] [2023-11-06 22:24:46,792 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:24:46,792 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 [2023-11-06 22:24:46,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:46,793 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:24:46,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (14)] Waiting until timeout for monitored process [2023-11-06 22:24:50,515 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-06 22:24:50,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:50,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 3938 conjuncts, 123 conjunts are in the unsatisfiable core [2023-11-06 22:24:50,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:52,359 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 40 proven. 34 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-06 22:24:52,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:54,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:54,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062558339] [2023-11-06 22:24:54,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062558339] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:54,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [433582364] [2023-11-06 22:24:54,491 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:24:54,492 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:24:54,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:24:54,493 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:24:54,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-06 22:24:58,697 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-06 22:24:58,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:58,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 3938 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-06 22:24:58,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:00,174 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-06 22:25:00,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:01,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [433582364] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:01,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:25:01,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 19 [2023-11-06 22:25:01,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138252741] [2023-11-06 22:25:01,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:01,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-06 22:25:01,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:25:01,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:25:01,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:25:01,552 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 19 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 17 states have internal predecessors, (34), 9 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 5 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-06 22:25:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:04,160 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2023-11-06 22:25:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:25:04,161 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 17 states have internal predecessors, (34), 9 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 5 states have call predecessors, (16), 7 states have call successors, (16) Word has length 57 [2023-11-06 22:25:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:04,162 INFO L225 Difference]: With dead ends: 82 [2023-11-06 22:25:04,162 INFO L226 Difference]: Without dead ends: 80 [2023-11-06 22:25:04,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2023-11-06 22:25:04,164 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 42 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:04,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 140 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-06 22:25:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-06 22:25:04,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2023-11-06 22:25:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 50 states have internal predecessors, (50), 13 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:25:04,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2023-11-06 22:25:04,187 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 57 [2023-11-06 22:25:04,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:04,188 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2023-11-06 22:25:04,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 17 states have internal predecessors, (34), 9 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 5 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-06 22:25:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2023-11-06 22:25:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:25:04,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:04,190 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:25:04,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:04,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:04,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:25:04,592 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:25:04,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:04,593 INFO L85 PathProgramCache]: Analyzing trace with hash -718277704, now seen corresponding path program 6 times [2023-11-06 22:25:04,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:25:04,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571971493] [2023-11-06 22:25:04,596 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-06 22:25:04,596 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 [2023-11-06 22:25:04,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:25:04,597 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:25:04,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (16)] Waiting until timeout for monitored process [2023-11-06 22:25:07,611 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-11-06 22:25:07,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:25:07,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 377 conjunts are in the unsatisfiable core [2023-11-06 22:25:07,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:22,539 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-06 22:25:22,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:22,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:25:22,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571971493] [2023-11-06 22:25:22,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571971493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:22,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1470169088] [2023-11-06 22:25:22,908 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-06 22:25:22,908 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:25:22,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:25:22,909 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:25:22,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-06 22:25:25,474 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-11-06 22:25:25,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:25:25,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 446 conjunts are in the unsatisfiable core [2023-11-06 22:25:25,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 36 proven. 41 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-06 22:25:43,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:43,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1470169088] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:43,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:25:43,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 17 [2023-11-06 22:25:43,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297162268] [2023-11-06 22:25:43,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:43,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-06 22:25:43,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:25:43,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-06 22:25:43,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:25:43,962 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand has 17 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 16 states have internal predecessors, (34), 11 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) [2023-11-06 22:25:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:46,313 INFO L93 Difference]: Finished difference Result 79 states and 81 transitions. [2023-11-06 22:25:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:25:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 16 states have internal predecessors, (34), 11 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) Word has length 63 [2023-11-06 22:25:46,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:46,316 INFO L225 Difference]: With dead ends: 79 [2023-11-06 22:25:46,316 INFO L226 Difference]: Without dead ends: 77 [2023-11-06 22:25:46,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 117 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2023-11-06 22:25:46,318 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 38 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:46,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 79 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-06 22:25:46,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-06 22:25:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-06 22:25:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 53 states have internal predecessors, (53), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:25:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2023-11-06 22:25:46,351 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 63 [2023-11-06 22:25:46,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:46,352 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2023-11-06 22:25:46,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 16 states have internal predecessors, (34), 11 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) [2023-11-06 22:25:46,352 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2023-11-06 22:25:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:25:46,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:46,354 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:25:46,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:46,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:46,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:25:46,760 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:25:46,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:46,761 INFO L85 PathProgramCache]: Analyzing trace with hash -597897840, now seen corresponding path program 7 times [2023-11-06 22:25:46,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:25:46,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668389580] [2023-11-06 22:25:46,763 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-06 22:25:46,763 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 [2023-11-06 22:25:46,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:25:46,765 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:25:46,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (18)] Waiting until timeout for monitored process [2023-11-06 22:26:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:06,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 3998 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-06 22:26:06,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:26:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 21 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:26:06,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:26:07,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:26:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668389580] [2023-11-06 22:26:07,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668389580] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:26:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [910445940] [2023-11-06 22:26:07,090 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-06 22:26:07,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:26:07,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:26:07,091 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:26:07,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-06 22:26:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:10,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 3998 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 22:26:10,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:26:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 21 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:26:11,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:26:11,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [910445940] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:26:11,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:26:11,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-11-06 22:26:11,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943039266] [2023-11-06 22:26:11,224 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:26:11,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:26:11,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:26:11,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:26:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:26:11,225 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-06 22:26:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:26:12,829 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2023-11-06 22:26:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:26:12,830 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 69 [2023-11-06 22:26:12,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:26:12,832 INFO L225 Difference]: With dead ends: 95 [2023-11-06 22:26:12,832 INFO L226 Difference]: Without dead ends: 93 [2023-11-06 22:26:12,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:26:12,833 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:26:12,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 136 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-06 22:26:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-06 22:26:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2023-11-06 22:26:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 58 states have internal predecessors, (58), 15 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:26:12,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2023-11-06 22:26:12,861 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 69 [2023-11-06 22:26:12,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:26:12,862 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2023-11-06 22:26:12,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-06 22:26:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2023-11-06 22:26:12,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:26:12,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:26:12,864 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2023-11-06 22:26:12,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:26:13,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:26:13,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:26:13,266 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:26:13,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:26:13,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1601458586, now seen corresponding path program 8 times [2023-11-06 22:26:13,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:26:13,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300634849] [2023-11-06 22:26:13,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:26:13,269 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 [2023-11-06 22:26:13,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:26:13,270 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:26:13,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0978258b-cf56-4d89-b125-747be8f7e4af/bin/uautomizer-verify-WvqO1wxjHP/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 (20)] Waiting until timeout for monitored process