./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:24,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:24,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:37:24,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:24,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:24,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:24,315 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:24,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:24,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:24,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:24,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:24,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:24,318 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:24,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:24,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:24,320 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:37:24,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:24,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:37:24,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:24,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:24,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:24,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:24,324 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:37:24,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:24,325 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:24,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:24,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:24,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:24,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:24,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:24,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:24,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:24,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:24,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:24,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:24,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:24,331 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:24,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:24,332 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:24,332 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_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c [2023-11-19 07:37:24,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:24,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:24,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:24,591 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:24,591 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:24,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2023-11-19 07:37:27,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:28,053 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:28,055 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2023-11-19 07:37:28,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/data/0f3ef7893/c0a94226d85f493191aa2aa3bbe42d6e/FLAGe832f75c2 [2023-11-19 07:37:28,100 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/data/0f3ef7893/c0a94226d85f493191aa2aa3bbe42d6e [2023-11-19 07:37:28,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:28,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:28,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:28,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:28,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:28,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5bad49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28, skipping insertion in model container [2023-11-19 07:37:28,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,168 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:28,313 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_dbcfca3a-6921-4c9b-b35f-469c094ce210/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2023-11-19 07:37:28,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:28,394 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:28,406 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_dbcfca3a-6921-4c9b-b35f-469c094ce210/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2023-11-19 07:37:28,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:28,454 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:28,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28 WrapperNode [2023-11-19 07:37:28,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:28,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:28,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:28,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:28,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,528 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 172 [2023-11-19 07:37:28,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:28,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:28,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:28,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:28,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:28,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:28,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:28,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:28,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (1/1) ... [2023-11-19 07:37:28,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:28,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:28,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:28,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:37:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:37:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:28,803 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:28,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:29,318 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:29,328 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:29,329 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:37:29,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:29 BoogieIcfgContainer [2023-11-19 07:37:29,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:29,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:29,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:29,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:29,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:28" (1/3) ... [2023-11-19 07:37:29,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c49f370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:29, skipping insertion in model container [2023-11-19 07:37:29,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:28" (2/3) ... [2023-11-19 07:37:29,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c49f370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:29, skipping insertion in model container [2023-11-19 07:37:29,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:29" (3/3) ... [2023-11-19 07:37:29,353 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-9.i [2023-11-19 07:37:29,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:29,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:37:29,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:29,442 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5804f40d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:29,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:37:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 55 states have internal predecessors, (77), 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) [2023-11-19 07:37:29,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 07:37:29,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:29,465 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] [2023-11-19 07:37:29,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:29,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:29,471 INFO L85 PathProgramCache]: Analyzing trace with hash 806520783, now seen corresponding path program 1 times [2023-11-19 07:37:29,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:29,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327681703] [2023-11-19 07:37:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:29,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:29,741 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:29,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254476119] [2023-11-19 07:37:29,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:29,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:29,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:29,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:29,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:37:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:37:30,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-19 07:37:30,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:37:30,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:30,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327681703] [2023-11-19 07:37:30,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:30,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254476119] [2023-11-19 07:37:30,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254476119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:30,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:30,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:30,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519060216] [2023-11-19 07:37:30,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:30,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:30,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:30,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:30,143 INFO L87 Difference]: Start difference. First operand has 78 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 55 states have internal predecessors, (77), 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 3 states, 3 states have (on average 13.666666666666666) 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) [2023-11-19 07:37:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:30,192 INFO L93 Difference]: Finished difference Result 150 states and 255 transitions. [2023-11-19 07:37:30,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:30,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) 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 [2023-11-19 07:37:30,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:30,206 INFO L225 Difference]: With dead ends: 150 [2023-11-19 07:37:30,207 INFO L226 Difference]: Without dead ends: 75 [2023-11-19 07:37:30,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:30,215 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:30,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:30,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-19 07:37:30,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-19 07:37:30,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 52 states have internal predecessors, (71), 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) [2023-11-19 07:37:30,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 113 transitions. [2023-11-19 07:37:30,272 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 113 transitions. Word has length 143 [2023-11-19 07:37:30,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:30,274 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 113 transitions. [2023-11-19 07:37:30,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) 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) [2023-11-19 07:37:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 113 transitions. [2023-11-19 07:37:30,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 07:37:30,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:30,280 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] [2023-11-19 07:37:30,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:30,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:37:30,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:30,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:30,490 INFO L85 PathProgramCache]: Analyzing trace with hash -204596467, now seen corresponding path program 1 times [2023-11-19 07:37:30,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:30,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266410176] [2023-11-19 07:37:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:30,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:30,592 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:30,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2032527245] [2023-11-19 07:37:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:30,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:30,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:30,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:30,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:37:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:37:30,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-19 07:37:31,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:37:31,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:31,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266410176] [2023-11-19 07:37:31,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:31,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032527245] [2023-11-19 07:37:31,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032527245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:31,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:31,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:37:31,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075268357] [2023-11-19 07:37:31,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:31,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:37:31,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:37:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:37:31,409 INFO L87 Difference]: Start difference. First operand 75 states and 113 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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) [2023-11-19 07:37:32,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:32,057 INFO L93 Difference]: Finished difference Result 281 states and 417 transitions. [2023-11-19 07:37:32,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:37:32,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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 [2023-11-19 07:37:32,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:32,064 INFO L225 Difference]: With dead ends: 281 [2023-11-19 07:37:32,064 INFO L226 Difference]: Without dead ends: 209 [2023-11-19 07:37:32,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:37:32,067 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 247 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:32,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 526 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:37:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-19 07:37:32,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 143. [2023-11-19 07:37:32,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 117 states have (on average 1.4444444444444444) internal successors, (169), 118 states have internal predecessors, (169), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:37:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 215 transitions. [2023-11-19 07:37:32,118 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 215 transitions. Word has length 143 [2023-11-19 07:37:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:32,119 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 215 transitions. [2023-11-19 07:37:32,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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) [2023-11-19 07:37:32,120 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 215 transitions. [2023-11-19 07:37:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 07:37:32,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:32,127 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] [2023-11-19 07:37:32,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:32,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:32,344 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:32,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1484460145, now seen corresponding path program 1 times [2023-11-19 07:37:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:32,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282328001] [2023-11-19 07:37:32,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:32,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:32,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:32,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173425149] [2023-11-19 07:37:32,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:32,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:32,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:32,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:32,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:37:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:37:32,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-19 07:37:33,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:37:33,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:33,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282328001] [2023-11-19 07:37:33,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:33,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173425149] [2023-11-19 07:37:33,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173425149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:33,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:33,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:37:33,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690330777] [2023-11-19 07:37:33,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:33,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:37:33,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:33,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:37:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:37:33,060 INFO L87 Difference]: Start difference. First operand 143 states and 215 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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) [2023-11-19 07:37:33,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:33,742 INFO L93 Difference]: Finished difference Result 379 states and 555 transitions. [2023-11-19 07:37:33,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:37:33,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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 [2023-11-19 07:37:33,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:33,754 INFO L225 Difference]: With dead ends: 379 [2023-11-19 07:37:33,754 INFO L226 Difference]: Without dead ends: 239 [2023-11-19 07:37:33,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:37:33,761 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 217 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:33,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 597 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:37:33,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-19 07:37:33,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 143. [2023-11-19 07:37:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 117 states have (on average 1.4444444444444444) internal successors, (169), 118 states have internal predecessors, (169), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:37:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 215 transitions. [2023-11-19 07:37:33,796 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 215 transitions. Word has length 143 [2023-11-19 07:37:33,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:33,800 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 215 transitions. [2023-11-19 07:37:33,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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) [2023-11-19 07:37:33,801 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 215 transitions. [2023-11-19 07:37:33,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 07:37:33,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:33,805 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] [2023-11-19 07:37:33,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:34,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:34,028 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:34,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:34,029 INFO L85 PathProgramCache]: Analyzing trace with hash 816471887, now seen corresponding path program 1 times [2023-11-19 07:37:34,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:34,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136083608] [2023-11-19 07:37:34,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:34,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:34,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:34,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113119182] [2023-11-19 07:37:34,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:34,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:34,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:34,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:34,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:37:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 07:37:34,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 308 proven. 12 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-11-19 07:37:34,623 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:35,126 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-19 07:37:35,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136083608] [2023-11-19 07:37:35,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113119182] [2023-11-19 07:37:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113119182] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:35,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:37:35,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 14 [2023-11-19 07:37:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316243458] [2023-11-19 07:37:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:35,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:37:35,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:35,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:37:35,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:37:35,130 INFO L87 Difference]: Start difference. First operand 143 states and 215 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2023-11-19 07:37:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:35,539 INFO L93 Difference]: Finished difference Result 335 states and 502 transitions. [2023-11-19 07:37:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:37:35,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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 [2023-11-19 07:37:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:35,543 INFO L225 Difference]: With dead ends: 335 [2023-11-19 07:37:35,543 INFO L226 Difference]: Without dead ends: 195 [2023-11-19 07:37:35,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:37:35,545 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 75 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:35,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 542 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:37:35,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-19 07:37:35,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 189. [2023-11-19 07:37:35,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 158 states have (on average 1.4493670886075949) internal successors, (229), 160 states have internal predecessors, (229), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-19 07:37:35,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 283 transitions. [2023-11-19 07:37:35,566 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 283 transitions. Word has length 143 [2023-11-19 07:37:35,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:35,567 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 283 transitions. [2023-11-19 07:37:35,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2023-11-19 07:37:35,567 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 283 transitions. [2023-11-19 07:37:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 07:37:35,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:35,570 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] [2023-11-19 07:37:35,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:35,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:35,791 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:35,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:35,792 INFO L85 PathProgramCache]: Analyzing trace with hash 14258251, now seen corresponding path program 1 times [2023-11-19 07:37:35,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:35,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440915290] [2023-11-19 07:37:35,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:35,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:35,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:35,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035130257] [2023-11-19 07:37:35,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:35,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:35,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:35,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:35,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:37:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:35,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:37:35,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-19 07:37:36,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:37:36,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:36,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440915290] [2023-11-19 07:37:36,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:36,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035130257] [2023-11-19 07:37:36,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035130257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:36,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:36,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:36,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915433487] [2023-11-19 07:37:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:36,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:36,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:36,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:36,066 INFO L87 Difference]: Start difference. First operand 189 states and 283 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) 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) [2023-11-19 07:37:36,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:36,143 INFO L93 Difference]: Finished difference Result 389 states and 577 transitions. [2023-11-19 07:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:36,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) 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 [2023-11-19 07:37:36,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:36,146 INFO L225 Difference]: With dead ends: 389 [2023-11-19 07:37:36,146 INFO L226 Difference]: Without dead ends: 203 [2023-11-19 07:37:36,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:36,148 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 36 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:36,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 214 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:37:36,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-19 07:37:36,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 187. [2023-11-19 07:37:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 156 states have (on average 1.4102564102564104) internal successors, (220), 158 states have internal predecessors, (220), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-19 07:37:36,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 274 transitions. [2023-11-19 07:37:36,174 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 274 transitions. Word has length 143 [2023-11-19 07:37:36,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:36,175 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 274 transitions. [2023-11-19 07:37:36,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) 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) [2023-11-19 07:37:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 274 transitions. [2023-11-19 07:37:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-19 07:37:36,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:36,179 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] [2023-11-19 07:37:36,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:36,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:36,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:36,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:36,399 INFO L85 PathProgramCache]: Analyzing trace with hash -795088375, now seen corresponding path program 1 times [2023-11-19 07:37:36,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:36,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114646872] [2023-11-19 07:37:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:36,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:36,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95389428] [2023-11-19 07:37:36,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:36,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:36,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:36,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:36,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:37:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:36,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-19 07:37:36,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 445 proven. 129 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-11-19 07:37:38,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-19 07:37:38,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:38,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114646872] [2023-11-19 07:37:38,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:37:38,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95389428] [2023-11-19 07:37:38,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95389428] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:38,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:37:38,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 23 [2023-11-19 07:37:38,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424218171] [2023-11-19 07:37:38,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:38,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:37:38,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:38,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:37:38,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:37:38,637 INFO L87 Difference]: Start difference. First operand 187 states and 274 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2023-11-19 07:37:39,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:39,220 INFO L93 Difference]: Finished difference Result 393 states and 571 transitions. [2023-11-19 07:37:39,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:37:39,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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 [2023-11-19 07:37:39,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:39,223 INFO L225 Difference]: With dead ends: 393 [2023-11-19 07:37:39,223 INFO L226 Difference]: Without dead ends: 209 [2023-11-19 07:37:39,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2023-11-19 07:37:39,225 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 91 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:39,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 435 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:37:39,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-19 07:37:39,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 180. [2023-11-19 07:37:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 149 states have (on average 1.4093959731543624) internal successors, (210), 151 states have internal predecessors, (210), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-19 07:37:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 264 transitions. [2023-11-19 07:37:39,242 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 264 transitions. Word has length 143 [2023-11-19 07:37:39,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:39,243 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 264 transitions. [2023-11-19 07:37:39,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2023-11-19 07:37:39,243 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 264 transitions. [2023-11-19 07:37:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-19 07:37:39,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:39,246 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] [2023-11-19 07:37:39,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:39,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:37:39,453 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:39,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:39,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1376228006, now seen corresponding path program 1 times [2023-11-19 07:37:39,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:39,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792613469] [2023-11-19 07:37:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:39,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:39,494 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:37:39,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591089432] [2023-11-19 07:37:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:39,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:39,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:39,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:39,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:37:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:39,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:39,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:39,904 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:37:39,905 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:37:39,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:40,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:37:40,117 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:40,120 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:37:40,224 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:37:40,242 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 07:37:40,243 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-19 07:37:40,244 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-19 07:37:40,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-19 07:37:40,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated [2023-11-19 07:37:40,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated [2023-11-19 07:37:40,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated [2023-11-19 07:37:40,246 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-19 07:37:40,246 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-19 07:37:40,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated [2023-11-19 07:37:40,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-19 07:37:40,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated [2023-11-19 07:37:40,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-19 07:37:40,250 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated [2023-11-19 07:37:40,250 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated [2023-11-19 07:37:40,250 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-19 07:37:40,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:37:40 BoogieIcfgContainer [2023-11-19 07:37:40,281 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:37:40,282 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:37:40,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:37:40,283 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:37:40,283 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:29" (3/4) ... [2023-11-19 07:37:40,286 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:37:40,287 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:37:40,288 INFO L158 Benchmark]: Toolchain (without parser) took 12181.13ms. Allocated memory was 148.9MB in the beginning and 230.7MB in the end (delta: 81.8MB). Free memory was 117.4MB in the beginning and 179.6MB in the end (delta: -62.2MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-11-19 07:37:40,288 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:40,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.86ms. Allocated memory is still 148.9MB. Free memory was 117.4MB in the beginning and 104.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:37:40,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.54ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 101.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:40,290 INFO L158 Benchmark]: Boogie Preprocessor took 46.04ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 99.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:40,290 INFO L158 Benchmark]: RCFGBuilder took 761.38ms. Allocated memory is still 148.9MB. Free memory was 99.5MB in the beginning and 79.8MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:37:40,291 INFO L158 Benchmark]: TraceAbstraction took 10941.26ms. Allocated memory was 148.9MB in the beginning and 230.7MB in the end (delta: 81.8MB). Free memory was 79.3MB in the beginning and 179.6MB in the end (delta: -100.4MB). Peak memory consumption was 94.0MB. Max. memory is 16.1GB. [2023-11-19 07:37:40,291 INFO L158 Benchmark]: Witness Printer took 4.94ms. Allocated memory is still 230.7MB. Free memory is still 179.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:40,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.86ms. Allocated memory is still 148.9MB. Free memory was 117.4MB in the beginning and 104.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.54ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 101.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.04ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 99.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 761.38ms. Allocated memory is still 148.9MB. Free memory was 99.5MB in the beginning and 79.8MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10941.26ms. Allocated memory was 148.9MB in the beginning and 230.7MB in the end (delta: 81.8MB). Free memory was 79.3MB in the beginning and 179.6MB in the end (delta: -100.4MB). Peak memory consumption was 94.0MB. Max. memory is 16.1GB. * Witness Printer took 4.94ms. Allocated memory is still 230.7MB. Free memory is still 179.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 125, overapproximation of shiftLeft at line 125. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] signed char var_1_2 = 100; [L24] signed short int var_1_3 = 1; [L25] signed long int var_1_4 = -16; [L26] signed long int var_1_5 = -64; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 5; [L29] double var_1_8 = 16.25; [L30] double var_1_9 = 1.8; [L31] unsigned char var_1_10 = 32; [L32] unsigned char var_1_11 = 64; [L33] unsigned short int var_1_12 = 16; [L34] unsigned long int var_1_13 = 128; [L35] unsigned char var_1_15 = 1; [L36] unsigned short int var_1_16 = 256; [L37] unsigned short int var_1_17 = 8; [L38] signed char var_1_18 = -2; VAL [isInitial=0, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=100, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L129] isInitial = 1 [L130] FCALL initially() [L131] COND TRUE 1 [L132] FCALL updateLastVariables() [L133] CALL updateVariables() [L89] var_1_2 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L90] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L91] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L91] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L92] var_1_3 = __VERIFIER_nondet_short() [L93] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L93] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L94] CALL assume_abort_if_not(var_1_3 <= 8) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L94] RET assume_abort_if_not(var_1_3 <= 8) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L95] var_1_4 = __VERIFIER_nondet_long() [L96] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L96] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L97] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L97] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L98] var_1_5 = __VERIFIER_nondet_long() [L99] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L99] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L100] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L100] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L101] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L101] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L102] var_1_6 = __VERIFIER_nondet_char() [L103] CALL assume_abort_if_not(var_1_6 >= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L103] RET assume_abort_if_not(var_1_6 >= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L104] CALL assume_abort_if_not(var_1_6 <= 12) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L104] RET assume_abort_if_not(var_1_6 <= 12) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L105] var_1_7 = __VERIFIER_nondet_char() [L106] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L106] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L107] CALL assume_abort_if_not(var_1_7 <= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L107] RET assume_abort_if_not(var_1_7 <= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L108] var_1_8 = __VERIFIER_nondet_double() [L109] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=9/5] [L109] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=9/5] [L110] var_1_9 = __VERIFIER_nondet_double() [L111] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L111] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L112] var_1_11 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L113] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L114] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L114] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L115] var_1_15 = __VERIFIER_nondet_uchar() [L116] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L116] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L117] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L117] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L118] var_1_17 = __VERIFIER_nondet_ushort() [L119] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L119] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L120] CALL assume_abort_if_not(var_1_17 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L120] RET assume_abort_if_not(var_1_17 <= 65535) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L133] RET updateVariables() [L134] CALL step() [L42] EXPR var_1_2 >> var_1_3 VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L42] signed long int stepLocal_1 = var_1_2 >> var_1_3; [L43] EXPR var_1_3 << (var_1_6 - var_1_7) VAL [isInitial=1, stepLocal_1=-1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L43] signed long int stepLocal_0 = var_1_3 << (var_1_6 - var_1_7); [L44] COND FALSE !(stepLocal_1 == (var_1_4 / var_1_5)) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L51] signed char stepLocal_2 = var_1_6; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, stepLocal_2=12, var_1_10=32, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L52] COND FALSE !(stepLocal_2 <= (var_1_4 + var_1_7)) [L55] var_1_10 = (var_1_3 + var_1_7) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, stepLocal_2=12, var_1_10=6, var_1_11=0, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L57] COND TRUE ((var_1_6 >> 2) * var_1_10) > var_1_4 [L58] var_1_12 = var_1_6 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, stepLocal_2=12, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L60] EXPR 1 << var_1_2 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, stepLocal_2=12, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L60] COND FALSE !((1 << var_1_2) != (-500 / -100)) [L67] var_1_13 = var_1_6 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, stepLocal_2=12, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L69] signed long int stepLocal_4 = (((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64))); [L70] unsigned short int stepLocal_3 = var_1_17; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, stepLocal_2=12, stepLocal_3=6, stepLocal_4=0, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=256, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L71] COND FALSE !((- var_1_9) <= var_1_8) [L84] var_1_16 = var_1_10 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, stepLocal_2=12, stepLocal_3=6, stepLocal_4=0, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=-2, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L86] var_1_18 = var_1_3 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=-1, stepLocal_2=12, stepLocal_3=6, stepLocal_4=0, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=0, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L134] RET step() [L135] CALL, EXPR property() [L125] EXPR var_1_2 >> var_1_3 VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=0, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L125] EXPR ((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=0, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L125] EXPR (((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=0, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L125] EXPR 1 << var_1_2 VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=0, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L125] EXPR (((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=0, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L125-L126] return (((((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6)))) && (((- var_1_9) <= var_1_8) ? (var_1_15 ? ((((((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64)))) < var_1_2) ? ((var_1_17 == var_1_10) ? (var_1_16 == ((unsigned short int) var_1_11)) : 1) : (var_1_16 == ((unsigned short int) 256))) : (var_1_16 == ((unsigned short int) var_1_3))) : (var_1_16 == ((unsigned short int) var_1_10)))) && (var_1_18 == ((signed char) var_1_3)) ; [L135] RET, EXPR property() [L135] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=0, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=6, var_1_17=6, var_1_18=0, var_1_1=11/2, var_1_2=-1, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=12, var_1_7=6, var_1_8=2, var_1_9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 7, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 666 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 666 mSDsluCounter, 2531 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1805 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1091 IncrementalHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 726 mSDtfsCounter, 1091 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1160 GetRequests, 1087 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=4, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 213 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1003 NumberOfCodeBlocks, 1003 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1136 ConstructedInterpolants, 0 QuantifiedInterpolants, 4081 SizeOfPredicates, 48 NumberOfNonLiveVariables, 2034 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 6579/6720 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 [2023-11-19 07:37:40,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/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_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:43,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:43,138 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:37:43,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:43,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:43,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:43,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:43,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:43,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:43,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:43,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:43,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:43,212 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:43,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:43,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:43,216 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:37:43,216 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:37:43,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:43,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:43,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:43,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:43,218 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:37:43,219 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:37:43,219 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:37:43,220 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:37:43,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:43,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:43,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:43,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:43,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:43,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:43,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:43,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:43,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:43,225 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:37:43,225 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:37:43,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:43,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:43,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:43,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:43,227 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:37:43,227 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:43,228 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_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c [2023-11-19 07:37:43,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:43,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:43,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:43,702 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:43,702 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:43,704 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2023-11-19 07:37:46,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:47,300 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:47,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2023-11-19 07:37:47,319 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/data/65b2e1843/223c76bcffb24dd8b3eedb344d30c69b/FLAG812dd0c7c [2023-11-19 07:37:47,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/data/65b2e1843/223c76bcffb24dd8b3eedb344d30c69b [2023-11-19 07:37:47,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:47,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:47,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:47,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:47,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:47,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a49a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47, skipping insertion in model container [2023-11-19 07:37:47,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,422 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:47,640 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_dbcfca3a-6921-4c9b-b35f-469c094ce210/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2023-11-19 07:37:47,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:47,761 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:47,783 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_dbcfca3a-6921-4c9b-b35f-469c094ce210/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2023-11-19 07:37:47,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:47,860 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:47,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47 WrapperNode [2023-11-19 07:37:47,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:47,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:47,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:47,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:47,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,898 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,941 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-11-19 07:37:47,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:47,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:47,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:47,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:47,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:47,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:47,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:47,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:47,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:47,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (1/1) ... [2023-11-19 07:37:48,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:48,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:48,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:48,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:37:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:37:48,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:37:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:48,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:48,221 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:48,224 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:48,813 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:48,825 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:48,825 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:37:48,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:48 BoogieIcfgContainer [2023-11-19 07:37:48,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:48,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:48,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:48,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:48,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:47" (1/3) ... [2023-11-19 07:37:48,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eac3f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:48, skipping insertion in model container [2023-11-19 07:37:48,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:47" (2/3) ... [2023-11-19 07:37:48,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eac3f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:48, skipping insertion in model container [2023-11-19 07:37:48,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:48" (3/3) ... [2023-11-19 07:37:48,844 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-9.i [2023-11-19 07:37:48,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:48,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:37:48,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:48,942 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f10aaa9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:48,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:37:48,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 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) [2023-11-19 07:37:48,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-19 07:37:48,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:48,970 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] [2023-11-19 07:37:48,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:48,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:48,981 INFO L85 PathProgramCache]: Analyzing trace with hash 207199203, now seen corresponding path program 1 times [2023-11-19 07:37:49,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:37:49,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350831963] [2023-11-19 07:37:49,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:49,006 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 [2023-11-19 07:37:49,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:37:49,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:37:49,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:37:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:49,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:37:49,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-11-19 07:37:49,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:37:49,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:37:49,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350831963] [2023-11-19 07:37:49,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350831963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:49,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:49,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:49,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204393829] [2023-11-19 07:37:49,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:49,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:37:49,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:37:49,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:37:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:49,496 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 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 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-19 07:37:49,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:49,531 INFO L93 Difference]: Finished difference Result 121 states and 209 transitions. [2023-11-19 07:37:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:37:49,533 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 133 [2023-11-19 07:37:49,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:49,542 INFO L225 Difference]: With dead ends: 121 [2023-11-19 07:37:49,543 INFO L226 Difference]: Without dead ends: 60 [2023-11-19 07:37:49,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:49,551 INFO L413 NwaCegarLoop]: 89 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, 89 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 [2023-11-19 07:37:49,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-19 07:37:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-19 07:37:49,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 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) [2023-11-19 07:37:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2023-11-19 07:37:49,665 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 133 [2023-11-19 07:37:49,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:49,666 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2023-11-19 07:37:49,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-19 07:37:49,667 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2023-11-19 07:37:49,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 07:37:49,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:49,683 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] [2023-11-19 07:37:49,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:37:49,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:37:49,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:49,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:49,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1441382090, now seen corresponding path program 1 times [2023-11-19 07:37:49,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:37:49,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196448086] [2023-11-19 07:37:49,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:49,893 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 [2023-11-19 07:37:49,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:37:49,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:37:49,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcfca3a-6921-4c9b-b35f-469c094ce210/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:37:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:50,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 07:37:50,195 INFO L285 TraceCheckSpWp]: Computing forward predicates...