./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/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_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/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_0579b90a-ff16-4894-a4e4-59145c271b49/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 bbe8ef4a6bc225ccf8ff0d5c1205da91d942b24e606bb225cf4da24e4664ed51 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:08,011 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:08,137 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:57:08,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:08,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:08,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:08,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:08,185 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:08,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:08,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:08,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:08,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:08,194 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:08,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:08,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:08,196 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:08,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:08,197 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:08,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:08,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:08,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:08,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:08,200 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:08,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:08,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:08,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:08,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:08,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:08,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:08,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:08,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:08,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:08,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:08,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:08,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:08,206 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:08,206 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:08,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:08,207 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:08,207 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_0579b90a-ff16-4894-a4e4-59145c271b49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbe8ef4a6bc225ccf8ff0d5c1205da91d942b24e606bb225cf4da24e4664ed51 [2023-11-19 07:57:08,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:08,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:08,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:08,565 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:08,565 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:08,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i [2023-11-19 07:57:11,708 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:12,008 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:12,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i [2023-11-19 07:57:12,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/data/e5c5864e7/c824e51342934f1a959f9606767a56b4/FLAGad7004f9b [2023-11-19 07:57:12,041 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/data/e5c5864e7/c824e51342934f1a959f9606767a56b4 [2023-11-19 07:57:12,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:12,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:12,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:12,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:12,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:12,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f052107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12, skipping insertion in model container [2023-11-19 07:57:12,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,108 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:12,266 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_0579b90a-ff16-4894-a4e4-59145c271b49/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i[916,929] [2023-11-19 07:57:12,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:12,327 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:12,339 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_0579b90a-ff16-4894-a4e4-59145c271b49/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i[916,929] [2023-11-19 07:57:12,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:12,401 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:12,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12 WrapperNode [2023-11-19 07:57:12,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:12,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:12,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:12,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:12,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,494 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148 [2023-11-19 07:57:12,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:12,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:12,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:12,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:12,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:12,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:12,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:12,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:12,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (1/1) ... [2023-11-19 07:57:12,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:12,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:12,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:12,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:57:12,642 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:57:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:12,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:12,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:12,731 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:12,734 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:13,197 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:13,219 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:13,219 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:57:13,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:13 BoogieIcfgContainer [2023-11-19 07:57:13,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:13,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:13,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:13,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:13,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:12" (1/3) ... [2023-11-19 07:57:13,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557ea940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:13, skipping insertion in model container [2023-11-19 07:57:13,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:12" (2/3) ... [2023-11-19 07:57:13,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557ea940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:13, skipping insertion in model container [2023-11-19 07:57:13,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:13" (3/3) ... [2023-11-19 07:57:13,253 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-64.i [2023-11-19 07:57:13,282 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:13,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:57:13,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:13,364 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;@1285f126, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:13,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:57:13,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:57:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 07:57:13,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:13,389 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:13,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:13,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:13,396 INFO L85 PathProgramCache]: Analyzing trace with hash 602699924, now seen corresponding path program 1 times [2023-11-19 07:57:13,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:13,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686985321] [2023-11-19 07:57:13,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:13,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686985321] [2023-11-19 07:57:13,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:57:13,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524080312] [2023-11-19 07:57:13,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:13,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:13,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:13,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:57:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:57:13,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2023-11-19 07:57:13,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:13,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524080312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:13,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:13,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:13,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191567499] [2023-11-19 07:57:13,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:14,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:57:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:14,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:57:14,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:57:14,041 INFO L87 Difference]: Start difference. First operand has 70 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-19 07:57:14,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:14,078 INFO L93 Difference]: Finished difference Result 133 states and 236 transitions. [2023-11-19 07:57:14,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:57:14,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 148 [2023-11-19 07:57:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:14,090 INFO L225 Difference]: With dead ends: 133 [2023-11-19 07:57:14,090 INFO L226 Difference]: Without dead ends: 66 [2023-11-19 07:57:14,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 147 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 07:57:14,099 INFO L413 NwaCegarLoop]: 101 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, 101 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 07:57:14,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-19 07:57:14,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-19 07:57:14,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:57:14,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 101 transitions. [2023-11-19 07:57:14,161 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 101 transitions. Word has length 148 [2023-11-19 07:57:14,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:14,161 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 101 transitions. [2023-11-19 07:57:14,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-19 07:57:14,162 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 101 transitions. [2023-11-19 07:57:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 07:57:14,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:14,167 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:14,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:14,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:57:14,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:14,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:14,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1514465062, now seen corresponding path program 1 times [2023-11-19 07:57:14,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:14,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663800724] [2023-11-19 07:57:14,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:14,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:14,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112396451] [2023-11-19 07:57:14,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:14,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:14,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:14,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:57:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:14,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:57:14,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 07:57:15,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:15,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663800724] [2023-11-19 07:57:15,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:15,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112396451] [2023-11-19 07:57:15,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112396451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:15,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:15,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:15,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138913410] [2023-11-19 07:57:15,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:15,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:57:15,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:15,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:57:15,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:15,459 INFO L87 Difference]: Start difference. First operand 66 states and 101 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:15,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:15,984 INFO L93 Difference]: Finished difference Result 226 states and 344 transitions. [2023-11-19 07:57:15,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:15,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 148 [2023-11-19 07:57:15,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:16,000 INFO L225 Difference]: With dead ends: 226 [2023-11-19 07:57:16,000 INFO L226 Difference]: Without dead ends: 163 [2023-11-19 07:57:16,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:57:16,007 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 167 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:16,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 488 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-19 07:57:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 118. [2023-11-19 07:57:16,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 67 states have internal predecessors, (86), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:57:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 182 transitions. [2023-11-19 07:57:16,071 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 182 transitions. Word has length 148 [2023-11-19 07:57:16,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:16,072 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 182 transitions. [2023-11-19 07:57:16,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 182 transitions. [2023-11-19 07:57:16,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-19 07:57:16,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:16,077 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:16,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:16,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:16,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:16,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:16,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1127446369, now seen corresponding path program 1 times [2023-11-19 07:57:16,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:16,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371158770] [2023-11-19 07:57:16,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:16,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:16,383 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:16,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313468523] [2023-11-19 07:57:16,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:16,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:16,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:16,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:16,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:57:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:16,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:16,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 07:57:16,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:16,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:16,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371158770] [2023-11-19 07:57:16,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:16,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313468523] [2023-11-19 07:57:16,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313468523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:16,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:16,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:16,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286534314] [2023-11-19 07:57:16,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:16,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:16,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:16,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:16,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:16,791 INFO L87 Difference]: Start difference. First operand 118 states and 182 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:16,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:16,826 INFO L93 Difference]: Finished difference Result 183 states and 282 transitions. [2023-11-19 07:57:16,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:16,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 149 [2023-11-19 07:57:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:16,833 INFO L225 Difference]: With dead ends: 183 [2023-11-19 07:57:16,833 INFO L226 Difference]: Without dead ends: 117 [2023-11-19 07:57:16,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 07:57:16,838 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:16,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 94 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:16,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-19 07:57:16,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2023-11-19 07:57:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 65 states have internal predecessors, (79), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:57:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 175 transitions. [2023-11-19 07:57:16,885 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 175 transitions. Word has length 149 [2023-11-19 07:57:16,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:16,888 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 175 transitions. [2023-11-19 07:57:16,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:16,889 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 175 transitions. [2023-11-19 07:57:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-19 07:57:16,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:16,900 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:16,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:17,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:17,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:17,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:17,122 INFO L85 PathProgramCache]: Analyzing trace with hash 313276063, now seen corresponding path program 1 times [2023-11-19 07:57:17,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:17,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056204295] [2023-11-19 07:57:17,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:17,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:17,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225720786] [2023-11-19 07:57:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:17,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:17,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:17,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:57:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:17,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:17,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 07:57:17,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:17,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:17,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056204295] [2023-11-19 07:57:17,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:17,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225720786] [2023-11-19 07:57:17,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225720786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:17,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:17,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:17,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201264570] [2023-11-19 07:57:17,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:17,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:17,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:17,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:17,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:17,428 INFO L87 Difference]: Start difference. First operand 116 states and 175 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:17,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:17,554 INFO L93 Difference]: Finished difference Result 222 states and 331 transitions. [2023-11-19 07:57:17,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:17,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 149 [2023-11-19 07:57:17,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:17,570 INFO L225 Difference]: With dead ends: 222 [2023-11-19 07:57:17,570 INFO L226 Difference]: Without dead ends: 160 [2023-11-19 07:57:17,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:17,572 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 81 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:17,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 391 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:17,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-19 07:57:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2023-11-19 07:57:17,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 92 states have internal predecessors, (111), 61 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-19 07:57:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 233 transitions. [2023-11-19 07:57:17,602 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 233 transitions. Word has length 149 [2023-11-19 07:57:17,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:17,603 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 233 transitions. [2023-11-19 07:57:17,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 233 transitions. [2023-11-19 07:57:17,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 07:57:17,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:17,606 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:17,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:17,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:17,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:17,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:17,820 INFO L85 PathProgramCache]: Analyzing trace with hash 674969621, now seen corresponding path program 1 times [2023-11-19 07:57:17,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:17,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892296250] [2023-11-19 07:57:17,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:17,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:17,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915675041] [2023-11-19 07:57:17,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:17,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:17,874 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:17,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:57:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:18,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:57:18,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 195 proven. 63 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2023-11-19 07:57:18,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-19 07:57:19,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:19,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892296250] [2023-11-19 07:57:19,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:19,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915675041] [2023-11-19 07:57:19,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915675041] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:19,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:19,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2023-11-19 07:57:19,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146879853] [2023-11-19 07:57:19,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:19,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:57:19,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:19,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:57:19,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:57:19,089 INFO L87 Difference]: Start difference. First operand 156 states and 233 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-19 07:57:19,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:19,751 INFO L93 Difference]: Finished difference Result 322 states and 464 transitions. [2023-11-19 07:57:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:57:19,752 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 150 [2023-11-19 07:57:19,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:19,758 INFO L225 Difference]: With dead ends: 322 [2023-11-19 07:57:19,758 INFO L226 Difference]: Without dead ends: 211 [2023-11-19 07:57:19,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:19,760 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 222 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:19,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 349 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:57:19,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-19 07:57:19,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 201. [2023-11-19 07:57:19,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 129 states have (on average 1.2325581395348837) internal successors, (159), 132 states have internal predecessors, (159), 65 states have call successors, (65), 6 states have call predecessors, (65), 6 states have return successors, (65), 62 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-19 07:57:19,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 289 transitions. [2023-11-19 07:57:19,824 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 289 transitions. Word has length 150 [2023-11-19 07:57:19,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:19,825 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 289 transitions. [2023-11-19 07:57:19,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-19 07:57:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 289 transitions. [2023-11-19 07:57:19,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 07:57:19,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:19,828 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:19,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:20,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:20,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:20,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1008990109, now seen corresponding path program 1 times [2023-11-19 07:57:20,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:20,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550091460] [2023-11-19 07:57:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:20,100 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:20,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507198680] [2023-11-19 07:57:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:20,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:20,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:20,116 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:20,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:57:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:20,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:57:20,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:20,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 07:57:20,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:20,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:20,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550091460] [2023-11-19 07:57:20,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:20,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507198680] [2023-11-19 07:57:20,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507198680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:20,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:20,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:20,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699845063] [2023-11-19 07:57:20,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:20,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:20,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:20,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:20,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:20,921 INFO L87 Difference]: Start difference. First operand 201 states and 289 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:21,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:21,377 INFO L93 Difference]: Finished difference Result 359 states and 507 transitions. [2023-11-19 07:57:21,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:57:21,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 150 [2023-11-19 07:57:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:21,381 INFO L225 Difference]: With dead ends: 359 [2023-11-19 07:57:21,381 INFO L226 Difference]: Without dead ends: 241 [2023-11-19 07:57:21,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:57:21,383 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 59 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:21,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 401 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-19 07:57:21,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 201. [2023-11-19 07:57:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 129 states have (on average 1.2170542635658914) internal successors, (157), 132 states have internal predecessors, (157), 65 states have call successors, (65), 6 states have call predecessors, (65), 6 states have return successors, (65), 62 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-19 07:57:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 287 transitions. [2023-11-19 07:57:21,424 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 287 transitions. Word has length 150 [2023-11-19 07:57:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:21,425 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 287 transitions. [2023-11-19 07:57:21,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 287 transitions. [2023-11-19 07:57:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 07:57:21,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:21,427 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:21,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:21,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:57:21,649 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:21,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:21,650 INFO L85 PathProgramCache]: Analyzing trace with hash 492566682, now seen corresponding path program 1 times [2023-11-19 07:57:21,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:21,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133383404] [2023-11-19 07:57:21,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:21,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:21,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:21,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796392624] [2023-11-19 07:57:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:21,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:21,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:21,680 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:21,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:57:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:21,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:57:21,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-19 07:57:22,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:22,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:22,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133383404] [2023-11-19 07:57:22,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:22,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796392624] [2023-11-19 07:57:22,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796392624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:22,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:22,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:57:22,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409716117] [2023-11-19 07:57:22,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:22,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:22,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:22,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:22,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:22,031 INFO L87 Difference]: Start difference. First operand 201 states and 287 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:22,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:22,684 INFO L93 Difference]: Finished difference Result 223 states and 307 transitions. [2023-11-19 07:57:22,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-19 07:57:22,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 151 [2023-11-19 07:57:22,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:22,687 INFO L225 Difference]: With dead ends: 223 [2023-11-19 07:57:22,687 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:57:22,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:57:22,689 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 115 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:22,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 572 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:57:22,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:57:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:57:22,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:57:22,691 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 151 [2023-11-19 07:57:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:22,691 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:57:22,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 07:57:22,692 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:57:22,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:57:22,695 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:57:22,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:22,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:57:22,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:57:24,673 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-11-19 07:57:24,674 INFO L895 garLoopResultBuilder]: At program point L118-2(lines 118 124) the Hoare annotation is: (let ((.cse6 (mod ~last_1_var_1_16~0 256))) (let ((.cse1 (<= .cse6 (mod (+ (* .cse6 4294967295) ~var_1_3~0) 4294967296))) (.cse2 (<= 1 |ULTIMATE.start_property_#res#1|)) (.cse3 (= ~var_1_18~0 ~var_1_16~0)) (.cse0 (= ~var_1_10~0 0)) (.cse5 (mod ~var_1_3~0 4294967296)) (.cse4 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 .cse1 .cse2 (= ~var_1_1~0 ~var_1_9~0) .cse3 .cse4) (and .cse0 .cse1 .cse2 (or (< .cse5 .cse6) (< .cse5 (mod (div .cse6 (mod ~var_1_5~0 4294967296)) 4294967296))) .cse3 (<= (+ ~var_1_7~0 ~var_1_6~0) ~var_1_8~0) .cse4) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 .cse5) .cse4)))) [2023-11-19 07:57:24,674 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 40 70) no Hoare annotation was computed. [2023-11-19 07:57:24,674 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 07:57:24,674 INFO L899 garLoopResultBuilder]: For program point L118-3(lines 118 124) no Hoare annotation was computed. [2023-11-19 07:57:24,675 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 07:57:24,675 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 07:57:24,675 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-11-19 07:57:24,675 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 50) no Hoare annotation was computed. [2023-11-19 07:57:24,675 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 115 126) no Hoare annotation was computed. [2023-11-19 07:57:24,675 INFO L895 garLoopResultBuilder]: At program point L102(line 102) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,676 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:57:24,676 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,676 INFO L895 garLoopResultBuilder]: At program point L86-1(line 86) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,676 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2023-11-19 07:57:24,676 INFO L899 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2023-11-19 07:57:24,676 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,677 INFO L895 garLoopResultBuilder]: At program point L95-1(line 95) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,678 INFO L899 garLoopResultBuilder]: For program point L87(line 87) no Hoare annotation was computed. [2023-11-19 07:57:24,678 INFO L899 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2023-11-19 07:57:24,678 INFO L895 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,678 INFO L899 garLoopResultBuilder]: For program point L112-1(line 112) no Hoare annotation was computed. [2023-11-19 07:57:24,678 INFO L895 garLoopResultBuilder]: At program point L79-1(line 79) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,678 INFO L899 garLoopResultBuilder]: For program point L112-3(line 112) no Hoare annotation was computed. [2023-11-19 07:57:24,679 INFO L899 garLoopResultBuilder]: For program point L112-5(line 112) no Hoare annotation was computed. [2023-11-19 07:57:24,679 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:57:24,679 INFO L899 garLoopResultBuilder]: For program point L112-7(line 112) no Hoare annotation was computed. [2023-11-19 07:57:24,679 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2023-11-19 07:57:24,679 INFO L899 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2023-11-19 07:57:24,679 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-11-19 07:57:24,679 INFO L899 garLoopResultBuilder]: For program point L55-3(line 55) no Hoare annotation was computed. [2023-11-19 07:57:24,680 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,680 INFO L895 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0))) (or (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296))) (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|)))) [2023-11-19 07:57:24,680 INFO L895 garLoopResultBuilder]: At program point L105-1(line 105) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0))) (or (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296))) (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|)))) [2023-11-19 07:57:24,680 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,680 INFO L895 garLoopResultBuilder]: At program point L89-1(line 89) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,680 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 64) no Hoare annotation was computed. [2023-11-19 07:57:24,681 INFO L899 garLoopResultBuilder]: For program point L56-1(lines 40 70) no Hoare annotation was computed. [2023-11-19 07:57:24,681 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-11-19 07:57:24,681 INFO L899 garLoopResultBuilder]: For program point L106(lines 71 107) no Hoare annotation was computed. [2023-11-19 07:57:24,681 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse1 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse1) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse1))) [2023-11-19 07:57:24,681 INFO L895 garLoopResultBuilder]: At program point L73-1(line 73) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse1 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse1) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse1))) [2023-11-19 07:57:24,681 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 70) no Hoare annotation was computed. [2023-11-19 07:57:24,682 INFO L895 garLoopResultBuilder]: At program point L98(line 98) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,682 INFO L895 garLoopResultBuilder]: At program point L98-1(line 98) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,682 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:57:24,682 INFO L899 garLoopResultBuilder]: For program point L90(line 90) no Hoare annotation was computed. [2023-11-19 07:57:24,682 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2023-11-19 07:57:24,682 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 07:57:24,682 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 111 114) no Hoare annotation was computed. [2023-11-19 07:57:24,683 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-11-19 07:57:24,683 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-11-19 07:57:24,683 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 68) no Hoare annotation was computed. [2023-11-19 07:57:24,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:57:24,683 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,683 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,683 INFO L899 garLoopResultBuilder]: For program point L108(lines 108 110) no Hoare annotation was computed. [2023-11-19 07:57:24,684 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,684 INFO L895 garLoopResultBuilder]: At program point L92-1(line 92) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,684 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2023-11-19 07:57:24,684 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse1 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) .cse1) (and .cse0 (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse1))) [2023-11-19 07:57:24,684 INFO L895 garLoopResultBuilder]: At program point L76-1(line 76) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,685 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 51) no Hoare annotation was computed. [2023-11-19 07:57:24,685 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 40 70) no Hoare annotation was computed. [2023-11-19 07:57:24,685 INFO L895 garLoopResultBuilder]: At program point L101(line 101) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,685 INFO L895 garLoopResultBuilder]: At program point L101-1(line 101) the Hoare annotation is: (let ((.cse0 (= ~var_1_10~0 0)) (.cse2 (<= (mod ~var_1_18~0 256) 254))) (or (and .cse0 (let ((.cse1 (mod ~last_1_var_1_16~0 256))) (<= .cse1 (mod (+ (* .cse1 4294967295) ~var_1_3~0) 4294967296))) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_18~0 ~var_1_16~0) .cse2) (and .cse0 (= ~var_1_16~0 10) (= ~last_1_var_1_16~0 10) (<= 2147483647 (mod ~var_1_3~0 4294967296)) .cse2))) [2023-11-19 07:57:24,686 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 07:57:24,686 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 07:57:24,686 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 07:57:24,686 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 07:57:24,689 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:24,691 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:57:24,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:57:24 BoogieIcfgContainer [2023-11-19 07:57:24,707 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:57:24,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:57:24,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:57:24,712 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:57:24,712 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:13" (3/4) ... [2023-11-19 07:57:24,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:57:24,719 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 07:57:24,728 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 07:57:24,729 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:57:24,729 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:57:24,730 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:57:24,759 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((var_1_10 == 0) && ((last_1_var_1_16 % 256) <= ((((last_1_var_1_16 % 256) * 4294967295) + var_1_3) % 4294967296))) && (1 <= \result)) && (var_1_1 == var_1_9)) && (var_1_18 == var_1_16)) && ((var_1_18 % 256) <= 254)) || (((((((var_1_10 == 0) && ((last_1_var_1_16 % 256) <= ((((last_1_var_1_16 % 256) * 4294967295) + var_1_3) % 4294967296))) && (1 <= \result)) && (((var_1_3 % 4294967296) < (last_1_var_1_16 % 256)) || ((var_1_3 % 4294967296) < (((last_1_var_1_16 % 256) / (var_1_5 % 4294967296)) % 4294967296)))) && (var_1_18 == var_1_16)) && ((var_1_7 + var_1_6) <= var_1_8)) && ((var_1_18 % 256) <= 254))) || (((((var_1_10 == 0) && (var_1_16 == 10)) && (last_1_var_1_16 == 10)) && (2147483647 <= (var_1_3 % 4294967296))) && ((var_1_18 % 256) <= 254))) [2023-11-19 07:57:24,803 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((var_1_10 == 0) && ((last_1_var_1_16 % 256) <= ((((last_1_var_1_16 % 256) * 4294967295) + var_1_3) % 4294967296))) && (1 <= \result)) && (var_1_1 == var_1_9)) && (var_1_18 == var_1_16)) && ((var_1_18 % 256) <= 254)) || (((((((var_1_10 == 0) && ((last_1_var_1_16 % 256) <= ((((last_1_var_1_16 % 256) * 4294967295) + var_1_3) % 4294967296))) && (1 <= \result)) && (((var_1_3 % 4294967296) < (last_1_var_1_16 % 256)) || ((var_1_3 % 4294967296) < (((last_1_var_1_16 % 256) / (var_1_5 % 4294967296)) % 4294967296)))) && (var_1_18 == var_1_16)) && ((var_1_7 + var_1_6) <= var_1_8)) && ((var_1_18 % 256) <= 254))) || (((((var_1_10 == 0) && (var_1_16 == 10)) && (last_1_var_1_16 == 10)) && (2147483647 <= (var_1_3 % 4294967296))) && ((var_1_18 % 256) <= 254))) [2023-11-19 07:57:24,860 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:57:24,860 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:57:24,861 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:57:24,861 INFO L158 Benchmark]: Toolchain (without parser) took 12811.57ms. Allocated memory was 169.9MB in the beginning and 268.4MB in the end (delta: 98.6MB). Free memory was 123.5MB in the beginning and 208.4MB in the end (delta: -85.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-11-19 07:57:24,862 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:24,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.91ms. Allocated memory is still 169.9MB. Free memory was 123.5MB in the beginning and 110.6MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:57:24,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.93ms. Allocated memory is still 169.9MB. Free memory was 110.6MB in the beginning and 107.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:24,863 INFO L158 Benchmark]: Boogie Preprocessor took 37.56ms. Allocated memory is still 169.9MB. Free memory was 107.6MB in the beginning and 106.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:24,863 INFO L158 Benchmark]: RCFGBuilder took 690.27ms. Allocated memory is still 169.9MB. Free memory was 106.0MB in the beginning and 137.6MB in the end (delta: -31.6MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-11-19 07:57:24,864 INFO L158 Benchmark]: TraceAbstraction took 11461.44ms. Allocated memory was 169.9MB in the beginning and 268.4MB in the end (delta: 98.6MB). Free memory was 137.0MB in the beginning and 214.7MB in the end (delta: -77.7MB). Peak memory consumption was 158.8MB. Max. memory is 16.1GB. [2023-11-19 07:57:24,865 INFO L158 Benchmark]: Witness Printer took 152.90ms. Allocated memory is still 268.4MB. Free memory was 214.7MB in the beginning and 208.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:57:24,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.91ms. Allocated memory is still 169.9MB. Free memory was 123.5MB in the beginning and 110.6MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.93ms. Allocated memory is still 169.9MB. Free memory was 110.6MB in the beginning and 107.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.56ms. Allocated memory is still 169.9MB. Free memory was 107.6MB in the beginning and 106.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 690.27ms. Allocated memory is still 169.9MB. Free memory was 106.0MB in the beginning and 137.6MB in the end (delta: -31.6MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11461.44ms. Allocated memory was 169.9MB in the beginning and 268.4MB in the end (delta: 98.6MB). Free memory was 137.0MB in the beginning and 214.7MB in the end (delta: -77.7MB). Peak memory consumption was 158.8MB. Max. memory is 16.1GB. * Witness Printer took 152.90ms. Allocated memory is still 268.4MB. Free memory was 214.7MB in the beginning and 208.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.4s, OverallIterations: 7, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 693 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 669 mSDsluCounter, 2396 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1661 mSDsCounter, 260 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1194 IncrementalHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 260 mSolverCounterUnsat, 735 mSDtfsCounter, 1194 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1223 GetRequests, 1157 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=5, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 100 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 262 PreInvPairs, 332 NumberOfFragments, 1213 HoareAnnotationTreeSize, 262 FomulaSimplifications, 658 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 26 FomulaSimplificationsInter, 1579 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1193 NumberOfCodeBlocks, 1193 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1187 ConstructedInterpolants, 0 QuantifiedInterpolants, 3584 SizeOfPredicates, 40 NumberOfNonLiveVariables, 2370 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 8706/8832 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((((((((var_1_10 == 0) && ((last_1_var_1_16 % 256) <= ((((last_1_var_1_16 % 256) * 4294967295) + var_1_3) % 4294967296))) && (1 <= \result)) && (var_1_1 == var_1_9)) && (var_1_18 == var_1_16)) && ((var_1_18 % 256) <= 254)) || (((((((var_1_10 == 0) && ((last_1_var_1_16 % 256) <= ((((last_1_var_1_16 % 256) * 4294967295) + var_1_3) % 4294967296))) && (1 <= \result)) && (((var_1_3 % 4294967296) < (last_1_var_1_16 % 256)) || ((var_1_3 % 4294967296) < (((last_1_var_1_16 % 256) / (var_1_5 % 4294967296)) % 4294967296)))) && (var_1_18 == var_1_16)) && ((var_1_7 + var_1_6) <= var_1_8)) && ((var_1_18 % 256) <= 254))) || (((((var_1_10 == 0) && (var_1_16 == 10)) && (last_1_var_1_16 == 10)) && (2147483647 <= (var_1_3 % 4294967296))) && ((var_1_18 % 256) <= 254))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:57:24,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0579b90a-ff16-4894-a4e4-59145c271b49/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 Writing output log to file Ultimate.log Result: TRUE