./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 32bit --witnessprinter.graph.data.programhash 5092b9874183dfc38681d21126dd96b4ef139ca1702e11549aa108a46ad20342 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:27:14,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:27:14,241 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:27:14,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:27:14,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:27:14,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:27:14,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:27:14,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:27:14,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:27:14,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:27:14,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:27:14,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:27:14,294 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:27:14,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:27:14,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:27:14,295 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:27:14,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:27:14,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:27:14,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:27:14,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:27:14,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:27:14,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:27:14,303 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:27:14,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:27:14,308 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:27:14,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:27:14,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:27:14,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:27:14,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:27:14,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:27:14,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:27:14,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:27:14,313 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:27:14,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:27:14,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:27:14,314 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:27:14,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:27:14,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:27:14,314 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:27:14,315 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_05831746-10da-437b-9940-f84a44c210c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5092b9874183dfc38681d21126dd96b4ef139ca1702e11549aa108a46ad20342 [2023-11-06 22:27:14,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:27:14,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:27:14,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:27:14,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:27:14,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:27:14,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i [2023-11-06 22:27:17,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:27:18,017 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:27:18,017 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i [2023-11-06 22:27:18,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/data/6c6bebd16/0b68476748b245469cb19a18f3ea8999/FLAG98cbf2da1 [2023-11-06 22:27:18,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/data/6c6bebd16/0b68476748b245469cb19a18f3ea8999 [2023-11-06 22:27:18,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:27:18,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:27:18,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:27:18,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:27:18,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:27:18,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b801aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18, skipping insertion in model container [2023-11-06 22:27:18,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,099 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:27:18,242 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_05831746-10da-437b-9940-f84a44c210c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i[913,926] [2023-11-06 22:27:18,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:27:18,324 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:27:18,348 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_05831746-10da-437b-9940-f84a44c210c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i[913,926] [2023-11-06 22:27:18,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:27:18,405 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:27:18,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18 WrapperNode [2023-11-06 22:27:18,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:27:18,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:27:18,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:27:18,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:27:18,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,516 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 215 [2023-11-06 22:27:18,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:27:18,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:27:18,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:27:18,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:27:18,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,566 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:27:18,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:27:18,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:27:18,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:27:18,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (1/1) ... [2023-11-06 22:27:18,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:27:18,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:18,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:27:18,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:27:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:27:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:27:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:27:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:27:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:27:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:27:18,851 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:27:18,853 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:27:19,372 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:27:19,379 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:27:19,380 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:27:19,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:19 BoogieIcfgContainer [2023-11-06 22:27:19,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:27:19,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:27:19,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:27:19,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:27:19,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:27:18" (1/3) ... [2023-11-06 22:27:19,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15db0816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:19, skipping insertion in model container [2023-11-06 22:27:19,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:18" (2/3) ... [2023-11-06 22:27:19,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15db0816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:19, skipping insertion in model container [2023-11-06 22:27:19,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:19" (3/3) ... [2023-11-06 22:27:19,391 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-47.i [2023-11-06 22:27:19,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:27:19,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:27:19,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:27:19,469 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;@7969a7c7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:27:19,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:27:19,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 62 states have internal predecessors, (92), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:27:19,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-06 22:27:19,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:19,489 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:19,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:19,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:19,494 INFO L85 PathProgramCache]: Analyzing trace with hash 70625914, now seen corresponding path program 1 times [2023-11-06 22:27:19,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:19,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406644975] [2023-11-06 22:27:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:19,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:19,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:19,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406644975] [2023-11-06 22:27:19,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:27:19,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586451006] [2023-11-06 22:27:19,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:19,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:19,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:19,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:19,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:27:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:20,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:27:20,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2023-11-06 22:27:20,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:20,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586451006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:20,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:20,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:27:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736304411] [2023-11-06 22:27:20,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:20,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:27:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:20,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:27:20,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:27:20,251 INFO L87 Difference]: Start difference. First operand has 85 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 62 states have internal predecessors, (92), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:27:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:20,293 INFO L93 Difference]: Finished difference Result 163 states and 283 transitions. [2023-11-06 22:27:20,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:27:20,297 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 140 [2023-11-06 22:27:20,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:20,306 INFO L225 Difference]: With dead ends: 163 [2023-11-06 22:27:20,306 INFO L226 Difference]: Without dead ends: 81 [2023-11-06 22:27:20,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:27:20,313 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:20,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:27:20,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-06 22:27:20,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-06 22:27:20,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:27:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 123 transitions. [2023-11-06 22:27:20,378 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 123 transitions. Word has length 140 [2023-11-06 22:27:20,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:20,379 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 123 transitions. [2023-11-06 22:27:20,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:27:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 123 transitions. [2023-11-06 22:27:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-06 22:27:20,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:20,384 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:20,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:27:20,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:20,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:20,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:20,597 INFO L85 PathProgramCache]: Analyzing trace with hash -199199354, now seen corresponding path program 1 times [2023-11-06 22:27:20,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:20,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218564218] [2023-11-06 22:27:20,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:20,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:20,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:27:20,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123974050] [2023-11-06 22:27:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:20,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:20,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:20,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:20,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:27:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:20,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:27:20,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-06 22:27:21,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:27:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-06 22:27:21,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:21,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218564218] [2023-11-06 22:27:21,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:27:21,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123974050] [2023-11-06 22:27:21,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123974050] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:27:21,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:27:21,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-06 22:27:21,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464862553] [2023-11-06 22:27:21,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:27:21,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:27:21,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:27:21,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:27:21,575 INFO L87 Difference]: Start difference. First operand 81 states and 123 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-06 22:27:21,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:21,864 INFO L93 Difference]: Finished difference Result 165 states and 248 transitions. [2023-11-06 22:27:21,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:27:21,866 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 141 [2023-11-06 22:27:21,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:21,872 INFO L225 Difference]: With dead ends: 165 [2023-11-06 22:27:21,873 INFO L226 Difference]: Without dead ends: 87 [2023-11-06 22:27:21,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:27:21,879 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 248 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:21,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 288 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:27:21,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-06 22:27:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2023-11-06 22:27:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 61 states have (on average 1.360655737704918) internal successors, (83), 61 states have internal predecessors, (83), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:27:21,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 125 transitions. [2023-11-06 22:27:21,905 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 125 transitions. Word has length 141 [2023-11-06 22:27:21,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:21,907 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 125 transitions. [2023-11-06 22:27:21,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-06 22:27:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 125 transitions. [2023-11-06 22:27:21,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-06 22:27:21,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:21,911 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:21,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:22,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:22,117 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:22,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:22,118 INFO L85 PathProgramCache]: Analyzing trace with hash -960270847, now seen corresponding path program 1 times [2023-11-06 22:27:22,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:22,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726874198] [2023-11-06 22:27:22,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:22,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:22,168 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:27:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611911829] [2023-11-06 22:27:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:22,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:22,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:22,212 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:22,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:27:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:22,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:27:22,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-06 22:27:22,448 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:22,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:22,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726874198] [2023-11-06 22:27:22,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:27:22,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611911829] [2023-11-06 22:27:22,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611911829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:22,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:22,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:27:22,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886187715] [2023-11-06 22:27:22,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:22,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:27:22,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:22,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:27:22,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:27:22,453 INFO L87 Difference]: Start difference. First operand 85 states and 125 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:27:22,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:22,498 INFO L93 Difference]: Finished difference Result 241 states and 356 transitions. [2023-11-06 22:27:22,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:27:22,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 142 [2023-11-06 22:27:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:22,502 INFO L225 Difference]: With dead ends: 241 [2023-11-06 22:27:22,502 INFO L226 Difference]: Without dead ends: 159 [2023-11-06 22:27:22,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:27:22,505 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 106 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:22,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 265 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:27:22,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-06 22:27:22,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 89. [2023-11-06 22:27:22,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 65 states have internal predecessors, (87), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:27:22,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2023-11-06 22:27:22,528 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 142 [2023-11-06 22:27:22,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:22,529 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2023-11-06 22:27:22,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:27:22,530 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2023-11-06 22:27:22,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-06 22:27:22,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:22,533 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:22,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:22,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-06 22:27:22,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:22,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:22,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2054832771, now seen corresponding path program 1 times [2023-11-06 22:27:22,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:22,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178464567] [2023-11-06 22:27:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:22,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:22,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:27:22,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568021770] [2023-11-06 22:27:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:22,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:22,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:22,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:22,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:27:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:22,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:27:22,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 350 proven. 15 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2023-11-06 22:27:23,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:27:23,273 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-06 22:27:23,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:23,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178464567] [2023-11-06 22:27:23,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:27:23,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568021770] [2023-11-06 22:27:23,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568021770] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:27:23,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:27:23,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-06 22:27:23,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610360374] [2023-11-06 22:27:23,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:27:23,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:27:23,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:23,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:27:23,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:27:23,281 INFO L87 Difference]: Start difference. First operand 89 states and 129 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-06 22:27:24,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:24,106 INFO L93 Difference]: Finished difference Result 377 states and 537 transitions. [2023-11-06 22:27:24,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 22:27:24,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 142 [2023-11-06 22:27:24,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:24,111 INFO L225 Difference]: With dead ends: 377 [2023-11-06 22:27:24,111 INFO L226 Difference]: Without dead ends: 291 [2023-11-06 22:27:24,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-06 22:27:24,113 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 453 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:24,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 737 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:27:24,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-06 22:27:24,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 204. [2023-11-06 22:27:24,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 139 states have (on average 1.2805755395683454) internal successors, (178), 141 states have internal predecessors, (178), 57 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 55 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-06 22:27:24,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 292 transitions. [2023-11-06 22:27:24,172 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 292 transitions. Word has length 142 [2023-11-06 22:27:24,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:24,172 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 292 transitions. [2023-11-06 22:27:24,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-06 22:27:24,173 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 292 transitions. [2023-11-06 22:27:24,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-06 22:27:24,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:24,181 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:24,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:24,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:24,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:24,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:24,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1237184321, now seen corresponding path program 1 times [2023-11-06 22:27:24,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:24,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815978889] [2023-11-06 22:27:24,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:24,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:24,436 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:27:24,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [281433191] [2023-11-06 22:27:24,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:24,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:24,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:24,446 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:24,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:27:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:24,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:27:24,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-06 22:27:24,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:24,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:24,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815978889] [2023-11-06 22:27:24,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:27:24,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281433191] [2023-11-06 22:27:24,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281433191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:24,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:24,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:27:24,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797633097] [2023-11-06 22:27:24,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:24,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:27:24,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:24,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:27:24,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:27:24,625 INFO L87 Difference]: Start difference. First operand 204 states and 292 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:27:24,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:24,722 INFO L93 Difference]: Finished difference Result 467 states and 667 transitions. [2023-11-06 22:27:24,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:27:24,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 142 [2023-11-06 22:27:24,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:24,727 INFO L225 Difference]: With dead ends: 467 [2023-11-06 22:27:24,728 INFO L226 Difference]: Without dead ends: 295 [2023-11-06 22:27:24,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:27:24,730 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 103 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:24,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 290 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:27:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-06 22:27:24,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 227. [2023-11-06 22:27:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 162 states have (on average 1.2777777777777777) internal successors, (207), 164 states have internal predecessors, (207), 57 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 55 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-06 22:27:24,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 321 transitions. [2023-11-06 22:27:24,776 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 321 transitions. Word has length 142 [2023-11-06 22:27:24,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:24,777 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 321 transitions. [2023-11-06 22:27:24,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:27:24,777 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 321 transitions. [2023-11-06 22:27:24,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-06 22:27:24,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:24,780 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:24,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:24,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:24,986 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:24,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:24,987 INFO L85 PathProgramCache]: Analyzing trace with hash 264631212, now seen corresponding path program 1 times [2023-11-06 22:27:24,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:24,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907695058] [2023-11-06 22:27:24,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:24,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:25,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:27:25,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036019589] [2023-11-06 22:27:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:25,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:25,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:25,064 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:25,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:27:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:25,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:27:25,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:26,285 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-06 22:27:26,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:26,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:26,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907695058] [2023-11-06 22:27:26,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:27:26,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036019589] [2023-11-06 22:27:26,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036019589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:26,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:26,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:27:26,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090555444] [2023-11-06 22:27:26,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:26,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:27:26,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:26,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:27:26,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:27:26,290 INFO L87 Difference]: Start difference. First operand 227 states and 321 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:27:26,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:26,480 INFO L93 Difference]: Finished difference Result 483 states and 678 transitions. [2023-11-06 22:27:26,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:27:26,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 143 [2023-11-06 22:27:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:26,484 INFO L225 Difference]: With dead ends: 483 [2023-11-06 22:27:26,484 INFO L226 Difference]: Without dead ends: 288 [2023-11-06 22:27:26,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:27:26,486 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 84 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:26,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 316 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:27:26,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-06 22:27:26,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 170. [2023-11-06 22:27:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.2479338842975207) internal successors, (151), 121 states have internal predecessors, (151), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:27:26,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 235 transitions. [2023-11-06 22:27:26,523 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 235 transitions. Word has length 143 [2023-11-06 22:27:26,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:26,524 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 235 transitions. [2023-11-06 22:27:26,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:27:26,524 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 235 transitions. [2023-11-06 22:27:26,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-06 22:27:26,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:26,526 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:26,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:26,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:26,738 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:26,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash 615425116, now seen corresponding path program 1 times [2023-11-06 22:27:26,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:26,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679480586] [2023-11-06 22:27:26,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:26,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:26,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:27:26,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102799992] [2023-11-06 22:27:26,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:26,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:26,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:26,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:26,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:27:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:27,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-06 22:27:27,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:28,136 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 312 proven. 126 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2023-11-06 22:27:28,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:27:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 114 proven. 57 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2023-11-06 22:27:30,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:30,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679480586] [2023-11-06 22:27:30,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:27:30,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102799992] [2023-11-06 22:27:30,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102799992] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:27:30,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:27:30,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 26 [2023-11-06 22:27:30,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833874671] [2023-11-06 22:27:30,172 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:27:30,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 22:27:30,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:30,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 22:27:30,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2023-11-06 22:27:30,174 INFO L87 Difference]: Start difference. First operand 170 states and 235 transitions. Second operand has 26 states, 25 states have (on average 4.0) internal successors, (100), 23 states have internal predecessors, (100), 7 states have call successors, (42), 5 states have call predecessors, (42), 10 states have return successors, (42), 9 states have call predecessors, (42), 7 states have call successors, (42) [2023-11-06 22:27:38,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:27:40,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:40,627 INFO L93 Difference]: Finished difference Result 712 states and 940 transitions. [2023-11-06 22:27:40,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-06 22:27:40,629 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.0) internal successors, (100), 23 states have internal predecessors, (100), 7 states have call successors, (42), 5 states have call predecessors, (42), 10 states have return successors, (42), 9 states have call predecessors, (42), 7 states have call successors, (42) Word has length 144 [2023-11-06 22:27:40,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:40,637 INFO L225 Difference]: With dead ends: 712 [2023-11-06 22:27:40,639 INFO L226 Difference]: Without dead ends: 593 [2023-11-06 22:27:40,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2615 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1901, Invalid=5071, Unknown=0, NotChecked=0, Total=6972 [2023-11-06 22:27:40,645 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 895 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:40,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 1020 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-06 22:27:40,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2023-11-06 22:27:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 322. [2023-11-06 22:27:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 241 states have (on average 1.2157676348547717) internal successors, (293), 241 states have internal predecessors, (293), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-06 22:27:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 419 transitions. [2023-11-06 22:27:40,734 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 419 transitions. Word has length 144 [2023-11-06 22:27:40,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:40,735 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 419 transitions. [2023-11-06 22:27:40,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.0) internal successors, (100), 23 states have internal predecessors, (100), 7 states have call successors, (42), 5 states have call predecessors, (42), 10 states have return successors, (42), 9 states have call predecessors, (42), 7 states have call successors, (42) [2023-11-06 22:27:40,735 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 419 transitions. [2023-11-06 22:27:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-06 22:27:40,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:40,737 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:40,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:40,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:40,944 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:40,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:40,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1443863983, now seen corresponding path program 1 times [2023-11-06 22:27:40,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:40,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601523239] [2023-11-06 22:27:40,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:40,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:40,982 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:27:40,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387005338] [2023-11-06 22:27:40,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:40,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:40,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:40,984 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:41,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:27:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:41,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:27:41,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-06 22:27:41,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:27:42,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:42,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601523239] [2023-11-06 22:27:42,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:27:42,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387005338] [2023-11-06 22:27:42,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387005338] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:27:42,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:27:42,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-06 22:27:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193542336] [2023-11-06 22:27:42,876 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:27:42,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:27:42,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:42,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:27:42,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:27:42,878 INFO L87 Difference]: Start difference. First operand 322 states and 419 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:27:43,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:43,494 INFO L93 Difference]: Finished difference Result 630 states and 815 transitions. [2023-11-06 22:27:43,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:27:43,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 145 [2023-11-06 22:27:43,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:43,497 INFO L225 Difference]: With dead ends: 630 [2023-11-06 22:27:43,498 INFO L226 Difference]: Without dead ends: 371 [2023-11-06 22:27:43,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:27:43,500 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 127 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:43,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 442 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:27:43,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-06 22:27:43,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 332. [2023-11-06 22:27:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 251 states have (on average 1.2151394422310757) internal successors, (305), 251 states have internal predecessors, (305), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-06 22:27:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 431 transitions. [2023-11-06 22:27:43,572 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 431 transitions. Word has length 145 [2023-11-06 22:27:43,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:43,578 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 431 transitions. [2023-11-06 22:27:43,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:27:43,578 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 431 transitions. [2023-11-06 22:27:43,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-06 22:27:43,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:43,580 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:43,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:43,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:43,787 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:43,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:43,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1076095951, now seen corresponding path program 1 times [2023-11-06 22:27:43,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:43,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773105475] [2023-11-06 22:27:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:43,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:43,812 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:27:43,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317353882] [2023-11-06 22:27:43,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:43,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:43,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:43,814 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:27:43,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:27:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:27:44,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:27:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:27:44,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:27:44,243 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:27:44,245 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:27:44,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:44,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:27:44,454 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:44,457 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:27:44,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:27:44 BoogieIcfgContainer [2023-11-06 22:27:44,579 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:27:44,580 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:27:44,580 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:27:44,580 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:27:44,581 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:19" (3/4) ... [2023-11-06 22:27:44,582 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:27:44,583 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:27:44,586 INFO L158 Benchmark]: Toolchain (without parser) took 26538.54ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 120.5MB in the beginning and 105.5MB in the end (delta: 15.0MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2023-11-06 22:27:44,586 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory was 97.6MB in the beginning and 97.6MB in the end (delta: 68.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:27:44,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.77ms. Allocated memory is still 153.1MB. Free memory was 120.5MB in the beginning and 105.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:27:44,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.74ms. Allocated memory is still 153.1MB. Free memory was 105.9MB in the beginning and 101.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:27:44,588 INFO L158 Benchmark]: Boogie Preprocessor took 80.69ms. Allocated memory is still 153.1MB. Free memory was 101.1MB in the beginning and 99.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:27:44,588 INFO L158 Benchmark]: RCFGBuilder took 783.80ms. Allocated memory is still 153.1MB. Free memory was 99.0MB in the beginning and 98.2MB in the end (delta: 794.9kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:27:44,588 INFO L158 Benchmark]: TraceAbstraction took 25195.26ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 98.2MB in the beginning and 106.5MB in the end (delta: -8.4MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2023-11-06 22:27:44,589 INFO L158 Benchmark]: Witness Printer took 5.40ms. Allocated memory is still 222.3MB. Free memory was 106.5MB in the beginning and 105.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:27:44,591 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory was 97.6MB in the beginning and 97.6MB in the end (delta: 68.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.77ms. Allocated memory is still 153.1MB. Free memory was 120.5MB in the beginning and 105.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.74ms. Allocated memory is still 153.1MB. Free memory was 105.9MB in the beginning and 101.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.69ms. Allocated memory is still 153.1MB. Free memory was 101.1MB in the beginning and 99.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 783.80ms. Allocated memory is still 153.1MB. Free memory was 99.0MB in the beginning and 98.2MB in the end (delta: 794.9kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 25195.26ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 98.2MB in the beginning and 106.5MB in the end (delta: -8.4MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. * Witness Printer took 5.40ms. Allocated memory is still 222.3MB. Free memory was 106.5MB in the beginning and 105.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: 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 someBinaryDOUBLEComparisonOperation at line 133, overapproximation of someBinaryFLOATComparisonOperation at line 133, overapproximation of bitwiseOr at line 87. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 8; [L23] double var_1_3 = 0.875; [L24] unsigned short int var_1_4 = 49926; [L25] unsigned short int var_1_5 = 500; [L26] unsigned short int var_1_6 = 10; [L27] unsigned char var_1_8 = 64; [L28] unsigned short int var_1_9 = 5; [L29] unsigned char var_1_11 = 10; [L30] float var_1_12 = 0.19999999999999996; [L31] float var_1_13 = 9.2; [L32] float var_1_14 = 5.8; [L33] float var_1_15 = 31.25; [L34] unsigned char var_1_16 = 1; [L35] unsigned char var_1_17 = 0; [L36] unsigned char var_1_18 = 0; [L37] unsigned char var_1_19 = 1; [L38] unsigned short int var_1_20 = 256; [L39] unsigned short int var_1_21 = 23544; [L40] unsigned long int var_1_22 = 64; [L41] unsigned char last_1_var_1_8 = 64; [L42] unsigned char last_1_var_1_19 = 1; [L43] unsigned short int last_1_var_1_20 = 256; [L44] unsigned long int last_1_var_1_22 = 64; VAL [isInitial=0, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=7/8, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L137] isInitial = 1 [L138] FCALL initially() [L139] COND TRUE 1 [L140] CALL updateLastVariables() [L127] last_1_var_1_8 = var_1_8 [L128] last_1_var_1_19 = var_1_19 [L129] last_1_var_1_20 = var_1_20 [L130] last_1_var_1_22 = var_1_22 VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=7/8, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L140] RET updateLastVariables() [L141] CALL updateVariables() [L92] var_1_3 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L93] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L94] CALL assume_abort_if_not(var_1_3 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L94] RET assume_abort_if_not(var_1_3 != 0.0F) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L95] var_1_4 = __VERIFIER_nondet_ushort() [L96] CALL assume_abort_if_not(var_1_4 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L96] RET assume_abort_if_not(var_1_4 >= 49150) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L97] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L97] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_8=64, var_1_9=5] [L98] var_1_5 = __VERIFIER_nondet_ushort() [L99] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=10, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=10, var_1_8=64, var_1_9=5] [L99] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=10, var_1_8=64, var_1_9=5] [L100] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=10, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=10, var_1_8=64, var_1_9=5] [L100] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=10, var_1_8=64, var_1_9=5] [L101] var_1_6 = __VERIFIER_nondet_ushort() [L102] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=5] [L102] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=5] [L103] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=5] [L103] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=5] [L104] var_1_9 = __VERIFIER_nondet_ushort() [L105] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L105] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L106] CALL assume_abort_if_not(var_1_9 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L106] RET assume_abort_if_not(var_1_9 <= 32767) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L107] var_1_11 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L108] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L109] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L109] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L110] var_1_13 = __VERIFIER_nondet_float() [L111] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L111] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L112] var_1_14 = __VERIFIER_nondet_float() [L113] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L113] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L114] var_1_15 = __VERIFIER_nondet_float() [L115] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L115] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L116] var_1_17 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L117] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L118] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L118] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L119] var_1_18 = __VERIFIER_nondet_uchar() [L120] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L120] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L121] CALL assume_abort_if_not(var_1_18 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L121] RET assume_abort_if_not(var_1_18 <= 0) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L122] var_1_21 = __VERIFIER_nondet_ushort() [L123] CALL assume_abort_if_not(var_1_21 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L123] RET assume_abort_if_not(var_1_21 >= 16383) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L124] CALL assume_abort_if_not(var_1_21 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L124] RET assume_abort_if_not(var_1_21 <= 32767) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L141] RET updateVariables() [L142] CALL step() [L48] COND TRUE (last_1_var_1_8 + last_1_var_1_20) > (((((last_1_var_1_8) < 0 ) ? -(last_1_var_1_8) : (last_1_var_1_8))) + last_1_var_1_22) [L49] var_1_16 = (last_1_var_1_19 || var_1_17) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L53] unsigned short int stepLocal_0 = var_1_5; VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L54] COND FALSE !(stepLocal_0 >= (32796 - ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9))))) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L59] unsigned short int stepLocal_2 = var_1_4; VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L60] COND TRUE var_1_8 <= stepLocal_2 VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L61] COND TRUE \read(var_1_16) [L62] var_1_20 = (var_1_4 - ((((var_1_21 - var_1_8) < 0 ) ? -(var_1_21 - var_1_8) : (var_1_21 - var_1_8)))) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L69] COND TRUE \read(var_1_16) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L70] COND FALSE !((var_1_8 * var_1_8) < var_1_11) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L76] COND TRUE var_1_12 >= (1.3 / var_1_3) [L77] var_1_1 = ((var_1_4 - var_1_8) - var_1_8) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L81] unsigned char stepLocal_1 = var_1_1 < 64; VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_1=0, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L82] COND TRUE \read(var_1_16) VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_1=0, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L83] COND TRUE stepLocal_1 || var_1_16 [L84] var_1_19 = var_1_17 VAL [isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_1=0, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L87] EXPR 2 ^ var_1_20 VAL [2 ^ var_1_20=32833, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_1=0, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L87] EXPR (((var_1_4 * var_1_8)) > ((2 ^ var_1_20))) ? ((var_1_4 * var_1_8)) : ((2 ^ var_1_20)) VAL [(((var_1_4 * var_1_8)) > ((2 ^ var_1_20))) ? ((var_1_4 * var_1_8)) : ((2 ^ var_1_20))=3145600, 2 ^ var_1_20=32833, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, stepLocal_0=28, stepLocal_1=0, stepLocal_2=49150, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L87] COND FALSE !(var_1_1 >= (((((var_1_4 * var_1_8)) > ((2 ^ var_1_20))) ? ((var_1_4 * var_1_8)) : ((2 ^ var_1_20))))) [L142] RET step() [L143] CALL, EXPR property() [L133] EXPR (((((((var_1_12 >= (1.3 / var_1_3)) ? (var_1_1 == ((unsigned short int) ((var_1_4 - var_1_8) - var_1_8))) : (var_1_1 == ((unsigned short int) ((((var_1_8) < (var_1_4)) ? (var_1_8) : (var_1_4)))))) && ((var_1_5 >= (32796 - ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9))))) ? (last_1_var_1_19 ? (var_1_8 == ((unsigned char) var_1_11)) : 1) : 1)) && (var_1_16 ? (((var_1_8 * var_1_8) < var_1_11) ? (var_1_12 == ((float) ((((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) > (var_1_15)) ? (((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) : (var_1_15))))) : 1) : (var_1_12 == ((float) var_1_14)))) && (((last_1_var_1_8 + last_1_var_1_20) > (((((last_1_var_1_8) < 0 ) ? -(last_1_var_1_8) : (last_1_var_1_8))) + last_1_var_1_22)) ? (var_1_16 == ((unsigned char) (last_1_var_1_19 || var_1_17))) : (var_1_16 == ((unsigned char) var_1_18)))) && (var_1_16 ? (((var_1_1 < 64) || var_1_16) ? (var_1_19 == ((unsigned char) var_1_17)) : 1) : 1)) && ((var_1_8 <= var_1_4) ? (var_1_16 ? (var_1_20 == ((unsigned short int) (var_1_4 - ((((var_1_21 - var_1_8) < 0 ) ? -(var_1_21 - var_1_8) : (var_1_21 - var_1_8)))))) : (var_1_20 == ((unsigned short int) 16))) : (var_1_20 == ((unsigned short int) (var_1_4 - var_1_8))))) && ((var_1_1 >= (((((var_1_4 * var_1_8)) > ((2 ^ var_1_20))) ? ((var_1_4 * var_1_8)) : ((2 ^ var_1_20))))) ? (var_1_22 == ((unsigned long int) var_1_1)) : 1) VAL [(((((((var_1_12 >= (1.3 / var_1_3)) ? (var_1_1 == ((unsigned short int) ((var_1_4 - var_1_8) - var_1_8))) : (var_1_1 == ((unsigned short int) ((((var_1_8) < (var_1_4)) ? (var_1_8) : (var_1_4)))))) && ((var_1_5 >= (32796 - ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9))))) ? (last_1_var_1_19 ? (var_1_8 == ((unsigned char) var_1_11)) : 1) : 1)) && (var_1_16 ? (((var_1_8 * var_1_8) < var_1_11) ? (var_1_12 == ((float) ((((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) > (var_1_15)) ? (((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) : (var_1_15))))) : 1) : (var_1_12 == ((float) var_1_14)))) && (((last_1_var_1_8 + last_1_var_1_20) > (((((last_1_var_1_8) < 0 ) ? -(last_1_var_1_8) : (last_1_var_1_8))) + last_1_var_1_22)) ? (var_1_16 == ((unsigned char) (last_1_var_1_19 || var_1_17))) : (var_1_16 == ((unsigned char) var_1_18)))) && (var_1_16 ? (((var_1_1 < 64) || var_1_16) ? (var_1_19 == ((unsigned char) var_1_17)) : 1) : 1)) && ((var_1_8 <= var_1_4) ? (var_1_16 ? (var_1_20 == ((unsigned short int) (var_1_4 - ((((var_1_21 - var_1_8) < 0 ) ? -(var_1_21 - var_1_8) : (var_1_21 - var_1_8)))))) : (var_1_20 == ((unsigned short int) 16))) : (var_1_20 == ((unsigned short int) (var_1_4 - var_1_8))))) && ((var_1_1 >= (((((var_1_4 * var_1_8)) > ((2 ^ var_1_20))) ? ((var_1_4 * var_1_8)) : ((2 ^ var_1_20))))) ? (var_1_22 == ((unsigned long int) var_1_1)) : 1)=0, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L133-L134] return (((((((var_1_12 >= (1.3 / var_1_3)) ? (var_1_1 == ((unsigned short int) ((var_1_4 - var_1_8) - var_1_8))) : (var_1_1 == ((unsigned short int) ((((var_1_8) < (var_1_4)) ? (var_1_8) : (var_1_4)))))) && ((var_1_5 >= (32796 - ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9))))) ? (last_1_var_1_19 ? (var_1_8 == ((unsigned char) var_1_11)) : 1) : 1)) && (var_1_16 ? (((var_1_8 * var_1_8) < var_1_11) ? (var_1_12 == ((float) ((((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) > (var_1_15)) ? (((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) : (var_1_15))))) : 1) : (var_1_12 == ((float) var_1_14)))) && (((last_1_var_1_8 + last_1_var_1_20) > (((((last_1_var_1_8) < 0 ) ? -(last_1_var_1_8) : (last_1_var_1_8))) + last_1_var_1_22)) ? (var_1_16 == ((unsigned char) (last_1_var_1_19 || var_1_17))) : (var_1_16 == ((unsigned char) var_1_18)))) && (var_1_16 ? (((var_1_1 < 64) || var_1_16) ? (var_1_19 == ((unsigned char) var_1_17)) : 1) : 1)) && ((var_1_8 <= var_1_4) ? (var_1_16 ? (var_1_20 == ((unsigned short int) (var_1_4 - ((((var_1_21 - var_1_8) < 0 ) ? -(var_1_21 - var_1_8) : (var_1_21 - var_1_8)))))) : (var_1_20 == ((unsigned short int) 16))) : (var_1_20 == ((unsigned short int) (var_1_4 - var_1_8))))) && ((var_1_1 >= (((((var_1_4 * var_1_8)) > ((2 ^ var_1_20))) ? ((var_1_4 * var_1_8)) : ((2 ^ var_1_20))))) ? (var_1_22 == ((unsigned long int) var_1_1)) : 1) ; [L143] RET, EXPR property() [L143] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_19=1, last_1_var_1_20=256, last_1_var_1_22=64, last_1_var_1_8=64, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=49022, var_1_20=32831, var_1_21=16383, var_1_22=64, var_1_4=49150, var_1_5=28, var_1_6=32767, var_1_8=64, var_1_9=32767] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.0s, OverallIterations: 9, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2058 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2016 mSDsluCounter, 3481 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2344 mSDsCounter, 704 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2404 IncrementalHoareTripleChecker+Invalid, 3108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 704 mSolverCounterUnsat, 1137 mSDtfsCounter, 2404 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1783 GetRequests, 1641 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2804 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=8, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 655 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 1424 NumberOfCodeBlocks, 1424 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1555 ConstructedInterpolants, 0 QuantifiedInterpolants, 7810 SizeOfPredicates, 30 NumberOfNonLiveVariables, 2739 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 8865/9240 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 22:27:44,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 32bit --witnessprinter.graph.data.programhash 5092b9874183dfc38681d21126dd96b4ef139ca1702e11549aa108a46ad20342 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:27:47,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:27:47,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:27:47,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:27:47,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:27:47,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:27:47,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:27:47,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:27:47,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:27:47,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:27:47,366 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:27:47,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:27:47,367 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:27:47,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:27:47,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:27:47,370 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:27:47,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:27:47,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:27:47,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:27:47,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:27:47,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:27:47,373 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:27:47,374 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:27:47,374 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:27:47,375 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:27:47,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:27:47,375 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:27:47,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:27:47,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:27:47,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:27:47,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:27:47,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:27:47,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:27:47,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:27:47,379 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:27:47,379 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:27:47,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:27:47,380 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:27:47,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:27:47,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:27:47,381 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:27:47,382 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:27:47,382 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_05831746-10da-437b-9940-f84a44c210c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5092b9874183dfc38681d21126dd96b4ef139ca1702e11549aa108a46ad20342 [2023-11-06 22:27:47,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:27:47,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:27:47,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:27:47,851 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:27:47,852 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:27:47,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i [2023-11-06 22:27:50,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:27:51,351 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:27:51,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i [2023-11-06 22:27:51,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/data/b8f22317f/733646a278bf42839f8567c964c394f3/FLAGf22446957 [2023-11-06 22:27:51,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/data/b8f22317f/733646a278bf42839f8567c964c394f3 [2023-11-06 22:27:51,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:27:51,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:27:51,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:27:51,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:27:51,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:27:51,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:51,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368aae49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51, skipping insertion in model container [2023-11-06 22:27:51,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:51,462 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:27:51,670 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_05831746-10da-437b-9940-f84a44c210c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i[913,926] [2023-11-06 22:27:51,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:27:51,818 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:27:51,862 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_05831746-10da-437b-9940-f84a44c210c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-47.i[913,926] [2023-11-06 22:27:51,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:27:51,937 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:27:51,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51 WrapperNode [2023-11-06 22:27:51,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:27:51,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:27:51,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:27:51,939 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:27:51,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:51,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,016 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2023-11-06 22:27:52,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:27:52,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:27:52,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:27:52,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:27:52,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:27:52,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:27:52,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:27:52,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:27:52,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (1/1) ... [2023-11-06 22:27:52,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:27:52,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:52,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:27:52,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:27:52,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:27:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:27:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:27:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:27:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:27:52,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:27:52,384 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:27:52,387 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:27:59,622 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:27:59,631 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:27:59,632 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:27:59,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:59 BoogieIcfgContainer [2023-11-06 22:27:59,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:27:59,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:27:59,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:27:59,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:27:59,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:27:51" (1/3) ... [2023-11-06 22:27:59,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5519f57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:59, skipping insertion in model container [2023-11-06 22:27:59,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:51" (2/3) ... [2023-11-06 22:27:59,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5519f57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:59, skipping insertion in model container [2023-11-06 22:27:59,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:59" (3/3) ... [2023-11-06 22:27:59,651 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-47.i [2023-11-06 22:27:59,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:27:59,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:27:59,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:27:59,789 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;@23450bd9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:27:59,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:27:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.380952380952381) internal successors, (58), 43 states have internal predecessors, (58), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:27:59,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-06 22:27:59,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:59,823 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:59,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:27:59,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:59,838 INFO L85 PathProgramCache]: Analyzing trace with hash 742321370, now seen corresponding path program 1 times [2023-11-06 22:27:59,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:59,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588376812] [2023-11-06 22:27:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:59,867 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 22:27:59,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:59,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:27:59,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:28:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:01,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:28:01,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:03,336 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-06 22:28:03,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:28:03,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:03,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588376812] [2023-11-06 22:28:03,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588376812] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:28:03,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1687905847] [2023-11-06 22:28:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:03,865 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:28:03,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:28:03,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:28:03,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-06 22:28:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:06,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:28:06,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:08,316 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-06 22:28:08,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:28:08,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1687905847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:08,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:28:08,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-06 22:28:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588105172] [2023-11-06 22:28:08,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:08,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:28:08,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:28:08,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:28:08,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:28:08,385 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.380952380952381) internal successors, (58), 43 states have internal predecessors, (58), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:28:12,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:14,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:16,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:18,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:20,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:22,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:24,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:27,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:29,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:31,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:31,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:31,726 INFO L93 Difference]: Finished difference Result 291 states and 542 transitions. [2023-11-06 22:28:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:28:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2023-11-06 22:28:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:31,746 INFO L225 Difference]: With dead ends: 291 [2023-11-06 22:28:31,747 INFO L226 Difference]: Without dead ends: 228 [2023-11-06 22:28:31,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:28:31,756 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 225 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 133 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:31,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 473 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 30 Invalid, 10 Unknown, 0 Unchecked, 22.9s Time] [2023-11-06 22:28:31,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-11-06 22:28:31,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 131. [2023-11-06 22:28:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 86 states have (on average 1.313953488372093) internal successors, (113), 86 states have internal predecessors, (113), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:28:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 197 transitions. [2023-11-06 22:28:31,860 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 197 transitions. Word has length 136 [2023-11-06 22:28:31,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:31,862 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 197 transitions. [2023-11-06 22:28:31,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:28:31,863 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 197 transitions. [2023-11-06 22:28:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-06 22:28:31,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:31,867 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:28:31,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:32,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:32,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:28:32,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:28:32,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:32,295 INFO L85 PathProgramCache]: Analyzing trace with hash -268795880, now seen corresponding path program 1 times [2023-11-06 22:28:32,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:28:32,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644765747] [2023-11-06 22:28:32,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:32,297 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 22:28:32,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:28:32,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:28:32,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:28:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:33,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:28:33,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-06 22:28:38,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:28:38,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:38,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644765747] [2023-11-06 22:28:38,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644765747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:38,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:38,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:28:38,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614449439] [2023-11-06 22:28:38,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:38,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:28:38,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:28:38,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:28:38,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:28:38,976 INFO L87 Difference]: Start difference. First operand 131 states and 197 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:28:42,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:45,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:48,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:50,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:53,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:56,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:28:59,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:01,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:29:01,966 INFO L93 Difference]: Finished difference Result 253 states and 377 transitions. [2023-11-06 22:29:02,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:29:02,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2023-11-06 22:29:02,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:29:02,240 INFO L225 Difference]: With dead ends: 253 [2023-11-06 22:29:02,243 INFO L226 Difference]: Without dead ends: 125 [2023-11-06 22:29:02,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:29:02,253 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 54 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 43 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:29:02,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 251 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 18 Invalid, 8 Unknown, 0 Unchecked, 22.8s Time] [2023-11-06 22:29:02,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-06 22:29:02,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114. [2023-11-06 22:29:02,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 69 states have internal predecessors, (85), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:29:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2023-11-06 22:29:02,297 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 136 [2023-11-06 22:29:02,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:29:02,298 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2023-11-06 22:29:02,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:29:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2023-11-06 22:29:02,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-06 22:29:02,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:29:02,302 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:29:02,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:29:02,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:29:02,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:29:02,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:02,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2123544737, now seen corresponding path program 1 times [2023-11-06 22:29:02,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:29:02,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785256327] [2023-11-06 22:29:02,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:02,530 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 22:29:02,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:29:02,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:29:02,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:29:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:03,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:29:03,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:29:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-06 22:29:05,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:29:05,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:29:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785256327] [2023-11-06 22:29:05,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785256327] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:29:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1993488485] [2023-11-06 22:29:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:05,859 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:29:05,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:29:05,864 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:29:05,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-06 22:29:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:07,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:29:07,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:29:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-06 22:29:09,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:29:09,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1993488485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:09,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:29:09,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-06 22:29:09,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12584422] [2023-11-06 22:29:09,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:09,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:29:09,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:29:09,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:29:09,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:29:09,436 INFO L87 Difference]: Start difference. First operand 114 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:29:12,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:15,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:18,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:21,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:25,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:28,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:28,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:29:28,462 INFO L93 Difference]: Finished difference Result 245 states and 366 transitions. [2023-11-06 22:29:28,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:29:28,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 138 [2023-11-06 22:29:28,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:29:28,467 INFO L225 Difference]: With dead ends: 245 [2023-11-06 22:29:28,468 INFO L226 Difference]: Without dead ends: 182 [2023-11-06 22:29:28,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:29:28,470 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 23 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:29:28,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 164 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 6 Unknown, 0 Unchecked, 19.0s Time] [2023-11-06 22:29:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-06 22:29:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2023-11-06 22:29:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 113 states have (on average 1.2566371681415929) internal successors, (142), 113 states have internal predecessors, (142), 63 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-06 22:29:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 268 transitions. [2023-11-06 22:29:28,533 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 268 transitions. Word has length 138 [2023-11-06 22:29:28,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:29:28,534 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 268 transitions. [2023-11-06 22:29:28,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:29:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 268 transitions. [2023-11-06 22:29:28,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-06 22:29:28,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:29:28,547 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:29:28,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:29:28,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:29:28,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:29:28,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:29:28,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:28,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1778395549, now seen corresponding path program 1 times [2023-11-06 22:29:28,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:29:28,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235285750] [2023-11-06 22:29:28,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:28,951 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 22:29:28,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:29:28,952 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:29:28,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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)] Waiting until timeout for monitored process [2023-11-06 22:29:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:30,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:29:30,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:29:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-06 22:29:31,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:29:32,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:29:32,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235285750] [2023-11-06 22:29:32,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235285750] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:29:32,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1907673703] [2023-11-06 22:29:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:32,207 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:29:32,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:29:32,208 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:29:32,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-06 22:29:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:34,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:29:34,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:29:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-06 22:29:35,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:29:35,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1907673703] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:29:35,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:29:35,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2023-11-06 22:29:35,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876309994] [2023-11-06 22:29:35,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:29:35,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:29:35,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:29:35,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:29:35,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:29:35,939 INFO L87 Difference]: Start difference. First operand 180 states and 268 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:29:40,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:42,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:44,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:47,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:49,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:51,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:54,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:56,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:58,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:00,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:00,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:00,812 INFO L93 Difference]: Finished difference Result 326 states and 476 transitions. [2023-11-06 22:30:01,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:30:01,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2023-11-06 22:30:01,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:01,122 INFO L225 Difference]: With dead ends: 326 [2023-11-06 22:30:01,123 INFO L226 Difference]: Without dead ends: 198 [2023-11-06 22:30:01,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:30:01,125 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 54 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:01,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 192 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 10 Unknown, 0 Unchecked, 24.5s Time] [2023-11-06 22:30:01,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-06 22:30:01,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 192. [2023-11-06 22:30:01,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 122 states have (on average 1.2049180327868851) internal successors, (147), 122 states have internal predecessors, (147), 63 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-06 22:30:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 273 transitions. [2023-11-06 22:30:01,171 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 273 transitions. Word has length 138 [2023-11-06 22:30:01,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:01,172 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 273 transitions. [2023-11-06 22:30:01,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:30:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 273 transitions. [2023-11-06 22:30:01,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-06 22:30:01,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:01,176 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:30:01,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:30:01,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:30:01,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:30:01,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:01,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:01,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1329040454, now seen corresponding path program 1 times [2023-11-06 22:30:01,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:30:01,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257360943] [2023-11-06 22:30:01,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:01,606 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 22:30:01,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:30:01,608 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:30:01,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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)] Waiting until timeout for monitored process [2023-11-06 22:30:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:02,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:30:02,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:30:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-06 22:30:07,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:30:09,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:30:09,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257360943] [2023-11-06 22:30:09,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257360943] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:30:09,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [649312488] [2023-11-06 22:30:09,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:09,702 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:30:09,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:30:09,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:30:09,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-06 22:30:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:30:12,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:30:15,934 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-06 22:30:15,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:30:17,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [649312488] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:30:17,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:30:17,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-11-06 22:30:17,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912408019] [2023-11-06 22:30:17,877 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:30:17,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:30:17,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:30:17,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:30:17,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:30:17,880 INFO L87 Difference]: Start difference. First operand 192 states and 273 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:30:22,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:24,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:26,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:29,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:31,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:33,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:36,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:38,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:40,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:42,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:46,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:48,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:51,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:53,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:55,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:59,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:01,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:03,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:05,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:05,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:05,657 INFO L93 Difference]: Finished difference Result 322 states and 460 transitions. [2023-11-06 22:31:05,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:31:05,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2023-11-06 22:31:05,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:05,661 INFO L225 Difference]: With dead ends: 322 [2023-11-06 22:31:05,662 INFO L226 Difference]: Without dead ends: 198 [2023-11-06 22:31:05,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:31:05,664 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 41 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 6 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:05,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 215 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 149 Invalid, 19 Unknown, 0 Unchecked, 47.4s Time] [2023-11-06 22:31:05,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-06 22:31:05,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 192. [2023-11-06 22:31:05,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 122 states have internal predecessors, (146), 63 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-06 22:31:05,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 272 transitions. [2023-11-06 22:31:05,717 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 272 transitions. Word has length 139 [2023-11-06 22:31:05,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:05,719 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 272 transitions. [2023-11-06 22:31:05,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:31:05,719 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 272 transitions. [2023-11-06 22:31:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-06 22:31:05,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:05,721 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:05,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:31:05,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:31:06,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:31:06,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:06,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:06,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1330887496, now seen corresponding path program 1 times [2023-11-06 22:31:06,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:31:06,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749520626] [2023-11-06 22:31:06,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:06,145 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 22:31:06,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:31:06,147 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 22:31:06,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05831746-10da-437b-9940-f84a44c210c6/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 (11)] Waiting until timeout for monitored process [2023-11-06 22:31:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:07,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-06 22:31:07,449 INFO L285 TraceCheckSpWp]: Computing forward predicates...