./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-5.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_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/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_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/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_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/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 382355403b61348faa15550ce62d0e27cb87c437f54bc87fc7019d7fcdc73f1f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:11,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:12,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:48:12,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:12,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:12,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:12,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:12,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:12,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:12,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:12,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:12,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:12,120 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:12,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:12,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:12,122 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:48:12,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:12,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:48:12,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:12,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:12,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:12,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:12,126 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:48:12,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:12,128 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:12,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:12,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:12,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:12,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:12,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:12,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:12,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:12,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:12,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:12,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:12,133 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:12,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:12,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:12,135 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:12,135 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_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 382355403b61348faa15550ce62d0e27cb87c437f54bc87fc7019d7fcdc73f1f [2023-11-19 07:48:12,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:12,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:12,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:12,522 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:12,523 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:12,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-5.i [2023-11-19 07:48:15,777 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:16,020 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:16,021 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-5.i [2023-11-19 07:48:16,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/data/ce241ed04/d064d08c58be439eab24b00df7caa6e4/FLAGe1455b844 [2023-11-19 07:48:16,048 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/data/ce241ed04/d064d08c58be439eab24b00df7caa6e4 [2023-11-19 07:48:16,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:16,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:16,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:16,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:16,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:16,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56447f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16, skipping insertion in model container [2023-11-19 07:48:16,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:16,295 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_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-5.i[915,928] [2023-11-19 07:48:16,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:16,385 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:16,400 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_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-5.i[915,928] [2023-11-19 07:48:16,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:16,476 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:16,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16 WrapperNode [2023-11-19 07:48:16,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:16,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:16,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:16,479 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:16,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,592 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-19 07:48:16,592 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:16,593 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:16,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:16,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:16,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:16,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:16,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:16,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:16,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (1/1) ... [2023-11-19 07:48:16,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:16,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:16,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:16,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:16,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:16,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:48:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:48:16,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:16,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:16,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:16,924 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:16,928 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:17,397 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:17,407 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:17,410 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:48:17,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:17 BoogieIcfgContainer [2023-11-19 07:48:17,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:17,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:17,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:17,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:17,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:16" (1/3) ... [2023-11-19 07:48:17,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7250889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:17, skipping insertion in model container [2023-11-19 07:48:17,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:16" (2/3) ... [2023-11-19 07:48:17,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7250889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:17, skipping insertion in model container [2023-11-19 07:48:17,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:17" (3/3) ... [2023-11-19 07:48:17,436 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-5.i [2023-11-19 07:48:17,466 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:17,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:48:17,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:17,565 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;@188f68d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:17,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:48:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:48:17,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:48:17,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:17,595 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:17,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:17,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:17,605 INFO L85 PathProgramCache]: Analyzing trace with hash 929324851, now seen corresponding path program 1 times [2023-11-19 07:48:17,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:17,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003938928] [2023-11-19 07:48:17,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:17,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:17,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:17,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003938928] [2023-11-19 07:48:17,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:48:17,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031064288] [2023-11-19 07:48:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:17,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:17,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:17,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:17,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:48:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:48:18,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-19 07:48:18,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:18,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031064288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:18,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:18,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:18,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399636081] [2023-11-19 07:48:18,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:18,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:48:18,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:18,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:48:18,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:18,300 INFO L87 Difference]: Start difference. First operand has 55 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 07:48:18,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:18,356 INFO L93 Difference]: Finished difference Result 103 states and 178 transitions. [2023-11-19 07:48:18,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:48:18,359 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 123 [2023-11-19 07:48:18,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:18,373 INFO L225 Difference]: With dead ends: 103 [2023-11-19 07:48:18,373 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 07:48:18,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 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 07:48:18,386 INFO L413 NwaCegarLoop]: 75 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, 75 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 07:48:18,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:18,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 07:48:18,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-19 07:48:18,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:48:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 75 transitions. [2023-11-19 07:48:18,474 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 75 transitions. Word has length 123 [2023-11-19 07:48:18,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:18,475 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 75 transitions. [2023-11-19 07:48:18,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 07:48:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2023-11-19 07:48:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:48:18,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:18,490 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:18,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:18,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:18,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:18,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1217728759, now seen corresponding path program 1 times [2023-11-19 07:48:18,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:18,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456471793] [2023-11-19 07:48:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:18,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:18,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:18,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841228701] [2023-11-19 07:48:18,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:18,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:18,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:18,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:18,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:48:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:19,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 07:48:19,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:23,036 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 07:48:23,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:26,734 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_12~0 256)) (.cse2 (mod c_~var_1_8~0 256))) (let ((.cse21 (mod c_~var_1_15~0 256)) (.cse10 (= .cse4 .cse2)) (.cse11 (= c_~var_1_19~0 .cse2)) (.cse9 (= c_~var_1_1~0 0)) (.cse12 (= .cse4 c_~var_1_20~0)) (.cse13 (= (+ 4 c_~var_1_18~0) 0)) (.cse14 (= (mod c_~var_1_9~0 256) 0))) (let ((.cse15 (and .cse11 .cse9 .cse12 .cse13 .cse14)) (.cse0 (not .cse10)) (.cse6 (not .cse11)) (.cse7 (not .cse12)) (.cse8 (not .cse13)) (.cse1 (and .cse11 .cse12 .cse13)) (.cse3 (mod 2 .cse21)) (.cse16 (mod c_~var_1_13~0 65536)) (.cse17 (* .cse21 65535)) (.cse19 (mod c_~var_1_16~0 65536)) (.cse18 (mod c_~var_1_17~0 65536))) (and (or (let ((.cse5 (= .cse16 (mod (+ .cse17 c_~var_1_17~0 .cse2) 65536)))) (and (or .cse0 (and (or .cse1 (and (forall ((v_z_33 Int)) (or (< (* (div .cse2 v_z_33) .cse3) .cse4) (< v_z_33 0) (< 255 v_z_33))) .cse5 (forall ((v_z_34 Int)) (or (< 255 v_z_34) (< v_z_34 0) (< .cse4 (+ (* (div .cse2 v_z_34) .cse3) 1)))))) (or .cse6 .cse7 .cse8 (and (or .cse9 (forall ((v_z_36 Int)) (or (< v_z_36 0) (< (* (div .cse2 v_z_36) .cse3) .cse4) (< 255 v_z_36)))) (or .cse5 (and .cse9 (forall ((v_z_35 Int)) (or (< (* (div .cse2 v_z_35) .cse3) .cse4) (< 255 v_z_35) (< v_z_35 0))))) (or .cse9 (forall ((v_z_37 Int)) (or (< 255 v_z_37) (< v_z_37 0) (< .cse4 (+ (* (div .cse2 v_z_37) .cse3) 1))))))))) (or .cse10 (and (or .cse5 (and .cse11 .cse9 .cse12 (forall ((v_z_28 Int)) (or (< v_z_28 0) (< (* .cse3 (div .cse2 v_z_28)) .cse4) (< 255 v_z_28))) .cse13 .cse14)) (or .cse15 (forall ((v_z_29 Int)) (or (< (* .cse3 (div .cse2 v_z_29)) .cse4) (< 255 v_z_29) (< v_z_29 0)))) (or (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_30)) 1)))) .cse15))))) (< .cse18 .cse19)) (or (let ((.cse20 (= .cse16 (mod (+ c_~var_1_16~0 .cse17 .cse2) 65536)))) (and (or .cse10 (and (or (and .cse11 .cse9 .cse12 .cse13 .cse14 (forall ((v_z_40 Int)) (or (< v_z_40 0) (< (* (div .cse2 v_z_40) .cse3) .cse4) (< 255 v_z_40)))) .cse20) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< v_z_38 0) (< (* .cse3 (div .cse2 v_z_38)) .cse4))) .cse15) (or (forall ((v_z_39 Int)) (or (< v_z_39 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_39)) 1)) (< 255 v_z_39))) .cse15))) (or .cse0 (and (or (and (or (and .cse9 (forall ((v_z_41 Int)) (or (< v_z_41 0) (< (* (div .cse2 v_z_41) .cse3) .cse4) (< 255 v_z_41)))) .cse20) (or (forall ((v_z_42 Int)) (or (< 255 v_z_42) (< v_z_42 0) (< (* (div .cse2 v_z_42) .cse3) .cse4))) .cse9) (or .cse9 (forall ((v_z_43 Int)) (or (< .cse4 (+ (* .cse3 (div .cse2 v_z_43)) 1)) (< v_z_43 0) (< 255 v_z_43))))) .cse6 .cse7 .cse8) (or .cse1 (and (forall ((v_z_45 Int)) (or (< v_z_45 0) (< 255 v_z_45) (< (* .cse3 (div .cse2 v_z_45)) .cse4))) .cse20 (forall ((v_z_46 Int)) (or (< 255 v_z_46) (< v_z_46 0) (< .cse4 (+ (* (div .cse2 v_z_46) .cse3) 1)))))))))) (< .cse19 (+ .cse18 1))))))) is different from false [2023-11-19 07:48:28,590 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse14 (mod c_~var_1_15~0 256)) (.cse2 (mod c_~var_1_8~0 256)) (.cse5 (= c_~var_1_1~0 0)) (.cse6 (= (mod c_~var_1_9~0 256) 0))) (let ((.cse4 (and .cse5 .cse6)) (.cse0 (< 254 .cse2)) (.cse7 (+ 1 .cse2)) (.cse1 (mod 2 .cse14)) (.cse3 (< .cse2 1)) (.cse9 (mod c_~var_1_13~0 65536)) (.cse10 (* .cse14 65535)) (.cse12 (mod c_~var_1_17~0 65536)) (.cse11 (mod c_~var_1_16~0 65536))) (and (or (let ((.cse8 (= .cse9 (mod (+ c_~var_1_16~0 .cse10 .cse2) 65536)))) (and (or (and (or .cse0 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< 255 v_z_39) (< 254 (* .cse1 (div .cse2 v_z_39)))))) (or .cse3 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< .cse2 (+ 2 (* .cse1 (div .cse2 v_z_39)))) (< 255 v_z_39))))) .cse4) (or .cse5 (forall ((v_z_43 Int)) (or (< .cse2 (+ (* .cse1 (div .cse2 v_z_43)) 1)) (< v_z_43 0) (< 255 v_z_43)))) (or (and (or .cse3 (forall ((v_z_40 Int)) (or (< v_z_40 0) (< 255 v_z_40) (< (* (div .cse2 v_z_40) .cse1) 0)))) .cse6 (or .cse0 (forall ((v_z_40 Int)) (or (< (* (div .cse2 v_z_40) .cse1) .cse7) (< v_z_40 0))))) .cse8) (or .cse5 (forall ((v_z_42 Int)) (or (< 255 v_z_42) (< v_z_42 0) (< (* (div .cse2 v_z_42) .cse1) .cse2)))) (or .cse4 (and (or .cse0 (forall ((v_z_38 Int)) (or (< v_z_38 0) (< (* .cse1 (div .cse2 v_z_38)) .cse7)))) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< v_z_38 0) (< (* .cse1 (div .cse2 v_z_38)) 0))) .cse3))) (or (and (forall ((v_z_41 Int)) (or (< v_z_41 0) (< (* (div .cse2 v_z_41) .cse1) .cse2) (< 255 v_z_41))) .cse5) .cse8))) (< .cse11 (+ .cse12 1))) (or (let ((.cse13 (= .cse9 (mod (+ .cse10 c_~var_1_17~0 .cse2) 65536)))) (and (or .cse13 (forall ((v_z_35 Int)) (or (< (* (div .cse2 v_z_35) .cse1) .cse2) (< 255 v_z_35) (< v_z_35 0)))) (or (forall ((v_z_36 Int)) (or (< v_z_36 0) (< (* (div .cse2 v_z_36) .cse1) .cse2) (< 255 v_z_36))) .cse5) (or .cse5 (forall ((v_z_37 Int)) (or (< 255 v_z_37) (< .cse2 (+ (* (div .cse2 v_z_37) .cse1) 1)) (< v_z_37 0)))) (or .cse4 (and (or .cse0 (forall ((v_z_29 Int)) (or (< (* .cse1 (div .cse2 v_z_29)) .cse7) (< v_z_29 0)))) (or (forall ((v_z_29 Int)) (or (< (* .cse1 (div .cse2 v_z_29)) 0) (< 255 v_z_29) (< v_z_29 0))) .cse3))) (or .cse4 (and (or .cse0 (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< 254 (* .cse1 (div .cse2 v_z_30)))))) (or (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< .cse2 (+ 2 (* .cse1 (div .cse2 v_z_30)))))) .cse3))) (or (and (or .cse0 (forall ((v_z_28 Int)) (or (< v_z_28 0) (< (* .cse1 (div .cse2 v_z_28)) .cse7)))) .cse5 (or (forall ((v_z_28 Int)) (or (< (* .cse1 (div .cse2 v_z_28)) 0) (< v_z_28 0) (< 255 v_z_28))) .cse3) .cse6) .cse13))) (< .cse12 .cse11))))) is different from false [2023-11-19 07:48:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:48:31,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:31,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456471793] [2023-11-19 07:48:31,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:31,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841228701] [2023-11-19 07:48:31,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841228701] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:31,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:31,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2023-11-19 07:48:31,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860542133] [2023-11-19 07:48:31,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:31,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:48:31,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:31,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:48:31,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=122, Unknown=3, NotChecked=46, Total=210 [2023-11-19 07:48:31,677 INFO L87 Difference]: Start difference. First operand 51 states and 75 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:48:34,452 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_12~0 256)) (.cse2 (mod c_~var_1_8~0 256)) (.cse24 (mod c_~var_1_15~0 256))) (let ((.cse23 (mod c_~var_1_17~0 65536)) (.cse22 (mod c_~var_1_16~0 65536)) (.cse25 (mod c_~var_1_13~0 65536)) (.cse26 (* .cse24 65535)) (.cse10 (= .cse4 .cse2)) (.cse11 (= c_~var_1_19~0 .cse2)) (.cse9 (= c_~var_1_1~0 0)) (.cse12 (= .cse4 c_~var_1_20~0)) (.cse13 (= (+ 4 c_~var_1_18~0) 0)) (.cse14 (= (mod c_~var_1_9~0 256) 0))) (let ((.cse15 (and .cse11 .cse9 .cse12 .cse13 .cse14)) (.cse0 (not .cse10)) (.cse6 (not .cse11)) (.cse7 (not .cse12)) (.cse8 (not .cse13)) (.cse1 (and .cse11 .cse12 .cse13)) (.cse5 (= .cse25 (mod (+ .cse26 c_~var_1_17~0 .cse2) 65536))) (.cse16 (< .cse23 .cse22)) (.cse20 (+ 1 .cse2)) (.cse17 (= .cse25 (mod (+ c_~var_1_16~0 .cse26 .cse2) 65536))) (.cse19 (< 254 .cse2)) (.cse21 (< .cse2 1)) (.cse3 (mod 2 .cse24)) (.cse18 (< .cse22 (+ .cse23 1)))) (and (or (and (or .cse0 (and (or .cse1 (and (forall ((v_z_33 Int)) (or (< (* (div .cse2 v_z_33) .cse3) .cse4) (< v_z_33 0) (< 255 v_z_33))) .cse5 (forall ((v_z_34 Int)) (or (< 255 v_z_34) (< v_z_34 0) (< .cse4 (+ (* (div .cse2 v_z_34) .cse3) 1)))))) (or .cse6 .cse7 .cse8 (and (or .cse9 (forall ((v_z_36 Int)) (or (< v_z_36 0) (< (* (div .cse2 v_z_36) .cse3) .cse4) (< 255 v_z_36)))) (or .cse5 (and .cse9 (forall ((v_z_35 Int)) (or (< (* (div .cse2 v_z_35) .cse3) .cse4) (< 255 v_z_35) (< v_z_35 0))))) (or .cse9 (forall ((v_z_37 Int)) (or (< 255 v_z_37) (< v_z_37 0) (< .cse4 (+ (* (div .cse2 v_z_37) .cse3) 1))))))))) (or .cse10 (and (or .cse5 (and .cse11 .cse9 .cse12 (forall ((v_z_28 Int)) (or (< v_z_28 0) (< (* .cse3 (div .cse2 v_z_28)) .cse4) (< 255 v_z_28))) .cse13 .cse14)) (or .cse15 (forall ((v_z_29 Int)) (or (< (* .cse3 (div .cse2 v_z_29)) .cse4) (< 255 v_z_29) (< v_z_29 0)))) (or (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_30)) 1)))) .cse15)))) .cse16) (or (and (or .cse10 (and (or (and .cse11 .cse9 .cse12 .cse13 .cse14 (forall ((v_z_40 Int)) (or (< v_z_40 0) (< (* (div .cse2 v_z_40) .cse3) .cse4) (< 255 v_z_40)))) .cse17) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< v_z_38 0) (< (* .cse3 (div .cse2 v_z_38)) .cse4))) .cse15) (or (forall ((v_z_39 Int)) (or (< v_z_39 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_39)) 1)) (< 255 v_z_39))) .cse15))) (or .cse0 (and (or (and (or (and .cse9 (forall ((v_z_41 Int)) (or (< v_z_41 0) (< (* (div .cse2 v_z_41) .cse3) .cse4) (< 255 v_z_41)))) .cse17) (or (forall ((v_z_42 Int)) (or (< 255 v_z_42) (< v_z_42 0) (< (* (div .cse2 v_z_42) .cse3) .cse4))) .cse9) (or .cse9 (forall ((v_z_43 Int)) (or (< .cse4 (+ (* .cse3 (div .cse2 v_z_43)) 1)) (< v_z_43 0) (< 255 v_z_43))))) .cse6 .cse7 .cse8) (or .cse1 (and (forall ((v_z_45 Int)) (or (< v_z_45 0) (< 255 v_z_45) (< (* .cse3 (div .cse2 v_z_45)) .cse4))) .cse17 (forall ((v_z_46 Int)) (or (< 255 v_z_46) (< v_z_46 0) (< .cse4 (+ (* (div .cse2 v_z_46) .cse3) 1))))))))) .cse18) (or (and (or .cse5 (and (or .cse19 (forall ((v_z_28 Int)) (or (< v_z_28 0) (< (* .cse3 (div .cse2 v_z_28)) .cse20)))) (or (forall ((v_z_28 Int)) (or (< (* .cse3 (div .cse2 v_z_28)) 0) (< v_z_28 0) (< 255 v_z_28))) .cse21) .cse14)) (or .cse5 (forall ((v_z_35 Int)) (or (< (* (div .cse2 v_z_35) .cse3) .cse2) (< 255 v_z_35) (< v_z_35 0)))) (or .cse14 (and (or .cse19 (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< 254 (* .cse3 (div .cse2 v_z_30)))))) (or (forall ((v_z_30 Int)) (or (< 255 v_z_30) (< v_z_30 0) (< .cse2 (+ 2 (* .cse3 (div .cse2 v_z_30)))))) .cse21))) (or .cse14 (and (or .cse19 (forall ((v_z_29 Int)) (or (< (* .cse3 (div .cse2 v_z_29)) .cse20) (< v_z_29 0)))) (or (forall ((v_z_29 Int)) (or (< (* .cse3 (div .cse2 v_z_29)) 0) (< 255 v_z_29) (< v_z_29 0))) .cse21)))) .cse16) (or (and (or (forall ((v_z_41 Int)) (or (< v_z_41 0) (< (* (div .cse2 v_z_41) .cse3) .cse2) (< 255 v_z_41))) .cse17) (or (and (or .cse19 (forall ((v_z_38 Int)) (or (< v_z_38 0) (< (* .cse3 (div .cse2 v_z_38)) .cse20)))) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< v_z_38 0) (< (* .cse3 (div .cse2 v_z_38)) 0))) .cse21)) .cse14) (or (and (or .cse21 (forall ((v_z_40 Int)) (or (< v_z_40 0) (< 255 v_z_40) (< (* (div .cse2 v_z_40) .cse3) 0)))) .cse14 (or .cse19 (forall ((v_z_40 Int)) (or (< (* (div .cse2 v_z_40) .cse3) .cse20) (< v_z_40 0))))) .cse17) (or (and (or .cse19 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< 255 v_z_39) (< 254 (* .cse3 (div .cse2 v_z_39)))))) (or .cse21 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< .cse2 (+ 2 (* .cse3 (div .cse2 v_z_39)))) (< 255 v_z_39))))) .cse14)) .cse18))))) is different from false [2023-11-19 07:48:42,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:42,577 INFO L93 Difference]: Finished difference Result 162 states and 228 transitions. [2023-11-19 07:48:42,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:48:42,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 123 [2023-11-19 07:48:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:42,581 INFO L225 Difference]: With dead ends: 162 [2023-11-19 07:48:42,582 INFO L226 Difference]: Without dead ends: 160 [2023-11-19 07:48:42,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=98, Invalid=357, Unknown=19, NotChecked=126, Total=600 [2023-11-19 07:48:42,584 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 89 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 285 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:42,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 791 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 16 Unknown, 285 Unchecked, 1.7s Time] [2023-11-19 07:48:42,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-19 07:48:42,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 140. [2023-11-19 07:48:42,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 87 states have internal predecessors, (98), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-19 07:48:42,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 202 transitions. [2023-11-19 07:48:42,640 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 202 transitions. Word has length 123 [2023-11-19 07:48:42,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:42,641 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 202 transitions. [2023-11-19 07:48:42,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:48:42,642 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 202 transitions. [2023-11-19 07:48:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:48:42,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:42,644 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:42,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-19 07:48:42,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:42,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:42,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:42,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1274987061, now seen corresponding path program 1 times [2023-11-19 07:48:42,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:42,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980509172] [2023-11-19 07:48:42,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:42,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:42,905 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:42,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471984526] [2023-11-19 07:48:42,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:42,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:42,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:42,907 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:42,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:48:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:43,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:48:43,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:48:43,062 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:43,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:43,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980509172] [2023-11-19 07:48:43,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:43,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471984526] [2023-11-19 07:48:43,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471984526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:43,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:43,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:43,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339555570] [2023-11-19 07:48:43,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:43,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:43,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:43,072 INFO L87 Difference]: Start difference. First operand 140 states and 202 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:48:43,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:43,121 INFO L93 Difference]: Finished difference Result 265 states and 384 transitions. [2023-11-19 07:48:43,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:43,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 123 [2023-11-19 07:48:43,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:43,126 INFO L225 Difference]: With dead ends: 265 [2023-11-19 07:48:43,127 INFO L226 Difference]: Without dead ends: 128 [2023-11-19 07:48:43,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 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 07:48:43,130 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:43,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 142 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:43,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-19 07:48:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-11-19 07:48:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.118421052631579) internal successors, (85), 78 states have internal predecessors, (85), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:48:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 181 transitions. [2023-11-19 07:48:43,170 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 181 transitions. Word has length 123 [2023-11-19 07:48:43,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:43,171 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 181 transitions. [2023-11-19 07:48:43,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:48:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 181 transitions. [2023-11-19 07:48:43,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:48:43,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:43,174 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:43,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:43,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-19 07:48:43,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:43,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:43,397 INFO L85 PathProgramCache]: Analyzing trace with hash 408382133, now seen corresponding path program 1 times [2023-11-19 07:48:43,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:43,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651879541] [2023-11-19 07:48:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:43,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:43,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:43,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323756129] [2023-11-19 07:48:43,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:43,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:43,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:43,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:43,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:48:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:43,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:48:43,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:44,449 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:48:44,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:44,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:44,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651879541] [2023-11-19 07:48:44,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:44,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323756129] [2023-11-19 07:48:44,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323756129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:44,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:44,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:48:44,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024487996] [2023-11-19 07:48:44,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:44,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:48:44,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:44,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:48:44,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:48:44,454 INFO L87 Difference]: Start difference. First operand 128 states and 181 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:48:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:45,058 INFO L93 Difference]: Finished difference Result 187 states and 262 transitions. [2023-11-19 07:48:45,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:48:45,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 123 [2023-11-19 07:48:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:45,068 INFO L225 Difference]: With dead ends: 187 [2023-11-19 07:48:45,068 INFO L226 Difference]: Without dead ends: 185 [2023-11-19 07:48:45,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:48:45,075 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 93 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:45,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 648 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:48:45,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-19 07:48:45,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 70. [2023-11-19 07:48:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 44 states have internal predecessors, (49), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:48:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 97 transitions. [2023-11-19 07:48:45,140 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 97 transitions. Word has length 123 [2023-11-19 07:48:45,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:45,140 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 97 transitions. [2023-11-19 07:48:45,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:48:45,141 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 97 transitions. [2023-11-19 07:48:45,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:48:45,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:45,146 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:45,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:45,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:45,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:45,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:45,368 INFO L85 PathProgramCache]: Analyzing trace with hash 453110410, now seen corresponding path program 1 times [2023-11-19 07:48:45,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:45,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021545853] [2023-11-19 07:48:45,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:45,395 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:48:45,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185214832] [2023-11-19 07:48:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:45,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:45,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:45,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:45,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:48:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:45,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 07:48:45,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-19 07:48:46,811 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:54,254 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:48:54,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021545853] [2023-11-19 07:48:54,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:48:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185214832] [2023-11-19 07:48:54,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185214832] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:54,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:54,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-11-19 07:48:54,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112369512] [2023-11-19 07:48:54,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:54,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:48:54,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:54,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:48:54,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=182, Unknown=5, NotChecked=0, Total=240 [2023-11-19 07:48:54,259 INFO L87 Difference]: Start difference. First operand 70 states and 97 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:48:55,496 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_12~0 256)) (.cse2 (mod c_~var_1_8~0 256))) (let ((.cse16 (mod c_~var_1_15~0 256)) (.cse0 (= .cse4 .cse2)) (.cse19 (= c_~var_1_19~0 .cse2)) (.cse18 (= .cse4 c_~var_1_20~0)) (.cse17 (= (+ 4 c_~var_1_18~0) 0))) (let ((.cse6 (and .cse19 .cse18 .cse17)) (.cse7 (not .cse19)) (.cse8 (not .cse18)) (.cse9 (not .cse17)) (.cse10 (= c_~var_1_1~0 0)) (.cse5 (not .cse0)) (.cse3 (mod 2 .cse16)) (.cse11 (mod c_~var_1_13~0 65536)) (.cse12 (* .cse16 65535)) (.cse14 (mod c_~var_1_16~0 65536)) (.cse13 (mod c_~var_1_17~0 65536))) (and (not (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (or (let ((.cse1 (= .cse11 (mod (+ .cse12 c_~var_1_17~0 .cse2) 65536)))) (and (or .cse0 (and .cse1 (forall ((v_z_104 Int)) (or (< 255 v_z_104) (< (* (div .cse2 v_z_104) .cse3) .cse4) (< v_z_104 0))) (forall ((v_z_103 Int)) (or (< .cse4 (+ (* .cse3 (div .cse2 v_z_103)) 1)) (< 255 v_z_103) (< v_z_103 0))))) (or .cse5 (and (or .cse6 (and (forall ((v_z_99 Int)) (or (< v_z_99 0) (< 255 v_z_99) (< .cse4 (+ (* (div .cse2 v_z_99) .cse3) 1)))) .cse1 (forall ((v_z_100 Int)) (or (< v_z_100 0) (< 255 v_z_100) (< (* .cse3 (div .cse2 v_z_100)) .cse4))))) (or .cse7 .cse8 .cse9 (and (or .cse1 (and .cse10 (forall ((v_z_95 Int)) (or (< 255 v_z_95) (< v_z_95 0) (< (* .cse3 (div .cse2 v_z_95)) .cse4))))) (or .cse10 (forall ((v_z_96 Int)) (or (< 255 v_z_96) (< v_z_96 0) (< (* .cse3 (div .cse2 v_z_96)) .cse4)))) (or .cse10 (forall ((v_z_97 Int)) (or (< v_z_97 0) (< .cse4 (+ (* (div .cse2 v_z_97) .cse3) 1)) (< 255 v_z_97)))))))))) (< .cse13 .cse14)) (or (let ((.cse15 (= .cse11 (mod (+ c_~var_1_16~0 .cse12 .cse2) 65536)))) (and (or (and (or .cse6 (and (forall ((v_z_113 Int)) (or (< v_z_113 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_113)) 1)) (< 255 v_z_113))) (forall ((v_z_114 Int)) (or (< v_z_114 0) (< 255 v_z_114) (< (* .cse3 (div .cse2 v_z_114)) .cse4))) .cse15)) (or .cse7 .cse8 .cse9 (and (or .cse10 (forall ((v_z_110 Int)) (or (< .cse4 (+ (* (div .cse2 v_z_110) .cse3) 1)) (< 255 v_z_110) (< v_z_110 0)))) (or (and .cse10 (forall ((v_z_108 Int)) (or (< v_z_108 0) (< 255 v_z_108) (< (* (div .cse2 v_z_108) .cse3) .cse4)))) .cse15) (or (forall ((v_z_109 Int)) (or (< (* (div .cse2 v_z_109) .cse3) .cse4) (< v_z_109 0) (< 255 v_z_109))) .cse10)))) .cse5) (or .cse0 (and (forall ((v_z_106 Int)) (or (< v_z_106 0) (< 255 v_z_106) (< (* .cse3 (div .cse2 v_z_106)) .cse4))) (forall ((v_z_105 Int)) (or (< 255 v_z_105) (< v_z_105 0) (< .cse4 (+ (* .cse3 (div .cse2 v_z_105)) 1)))) .cse15)))) (< .cse14 (+ .cse13 1))) (not (= |c_ULTIMATE.start_property_#res#1| 0)))))) is different from false [2023-11-19 07:49:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:00,065 INFO L93 Difference]: Finished difference Result 97 states and 131 transitions. [2023-11-19 07:49:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:49:00,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 124 [2023-11-19 07:49:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:00,068 INFO L225 Difference]: With dead ends: 97 [2023-11-19 07:49:00,068 INFO L226 Difference]: Without dead ends: 95 [2023-11-19 07:49:00,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=66, Invalid=234, Unknown=10, NotChecked=32, Total=342 [2023-11-19 07:49:00,070 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 39 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:00,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 418 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 14 Unknown, 6 Unchecked, 1.6s Time] [2023-11-19 07:49:00,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-19 07:49:00,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2023-11-19 07:49:00,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.103448275862069) internal successors, (64), 60 states have internal predecessors, (64), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:49:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions. [2023-11-19 07:49:00,104 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 128 transitions. Word has length 124 [2023-11-19 07:49:00,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:00,105 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 128 transitions. [2023-11-19 07:49:00,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:49:00,105 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 128 transitions. [2023-11-19 07:49:00,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:49:00,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:00,107 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:00,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-19 07:49:00,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:00,320 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:00,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash -356236216, now seen corresponding path program 1 times [2023-11-19 07:49:00,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:00,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146978084] [2023-11-19 07:49:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:00,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:00,347 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:00,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625688458] [2023-11-19 07:49:00,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:00,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:00,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:00,349 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:00,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:49:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:00,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 07:49:00,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:00,991 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-19 07:49:00,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:00,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:00,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146978084] [2023-11-19 07:49:00,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:00,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625688458] [2023-11-19 07:49:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625688458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:00,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:00,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:49:00,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558932581] [2023-11-19 07:49:00,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:00,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:49:00,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:00,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:49:00,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:49:00,994 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:49:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:01,482 INFO L93 Difference]: Finished difference Result 140 states and 194 transitions. [2023-11-19 07:49:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:49:01,483 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 124 [2023-11-19 07:49:01,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:01,484 INFO L225 Difference]: With dead ends: 140 [2023-11-19 07:49:01,484 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:49:01,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:49:01,486 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 90 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:01,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 650 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:49:01,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:49:01,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:49:01,487 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 07:49:01,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:49:01,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2023-11-19 07:49:01,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:01,488 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:49:01,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-19 07:49:01,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:49:01,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:49:01,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:49:01,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:01,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:01,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:49:02,955 INFO L899 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed. [2023-11-19 07:49:02,955 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2023-11-19 07:49:02,955 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2023-11-19 07:49:02,955 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 07:49:02,955 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 07:49:02,956 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-11-19 07:49:02,956 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 07:49:02,956 INFO L902 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: true [2023-11-19 07:49:02,956 INFO L902 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: true [2023-11-19 07:49:02,956 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 54) no Hoare annotation was computed. [2023-11-19 07:49:02,956 INFO L899 garLoopResultBuilder]: For program point L44-1(lines 41 65) no Hoare annotation was computed. [2023-11-19 07:49:02,956 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 105 116) no Hoare annotation was computed. [2023-11-19 07:49:02,956 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-11-19 07:49:02,956 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:49:02,957 INFO L902 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: true [2023-11-19 07:49:02,957 INFO L902 garLoopResultBuilder]: At program point L94-1(line 94) the Hoare annotation is: true [2023-11-19 07:49:02,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:49:02,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 07:49:02,957 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-11-19 07:49:02,957 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 101 104) no Hoare annotation was computed. [2023-11-19 07:49:02,957 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 53) no Hoare annotation was computed. [2023-11-19 07:49:02,957 INFO L902 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: true [2023-11-19 07:49:02,957 INFO L902 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: true [2023-11-19 07:49:02,957 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 65) no Hoare annotation was computed. [2023-11-19 07:49:02,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:49:02,958 INFO L899 garLoopResultBuilder]: For program point L95(lines 66 96) no Hoare annotation was computed. [2023-11-19 07:49:02,958 INFO L902 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: true [2023-11-19 07:49:02,958 INFO L902 garLoopResultBuilder]: At program point L91-1(line 91) the Hoare annotation is: true [2023-11-19 07:49:02,958 INFO L902 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: true [2023-11-19 07:49:02,958 INFO L902 garLoopResultBuilder]: At program point L87-1(line 87) the Hoare annotation is: true [2023-11-19 07:49:02,958 INFO L902 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: true [2023-11-19 07:49:02,958 INFO L902 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: true [2023-11-19 07:49:02,958 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 50) no Hoare annotation was computed. [2023-11-19 07:49:02,958 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-11-19 07:49:02,958 INFO L895 garLoopResultBuilder]: At program point L108-2(lines 108 114) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:49:02,959 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:49:02,959 INFO L899 garLoopResultBuilder]: For program point L108-3(lines 108 114) no Hoare annotation was computed. [2023-11-19 07:49:02,959 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:49:02,959 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:49:02,959 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-11-19 07:49:02,961 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 61) no Hoare annotation was computed. [2023-11-19 07:49:02,961 INFO L899 garLoopResultBuilder]: For program point L59-2(lines 59 61) no Hoare annotation was computed. [2023-11-19 07:49:02,962 INFO L902 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: true [2023-11-19 07:49:02,962 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 55 57) no Hoare annotation was computed. [2023-11-19 07:49:02,962 INFO L902 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: true [2023-11-19 07:49:02,962 INFO L902 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: true [2023-11-19 07:49:02,963 INFO L902 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: true [2023-11-19 07:49:02,963 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-11-19 07:49:02,963 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2023-11-19 07:49:02,964 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:49:02,964 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (let ((.cse0 (<= (mod ~var_1_9~0 256) 0))) (or (and (<= (+ (* (div (mod ~var_1_8~0 256) (mod ~var_1_14~0 256)) (mod 2 (mod ~var_1_15~0 256))) 1) (mod ~var_1_12~0 256)) .cse0) (= ~var_1_8~0 ~var_1_12~0) (and .cse0 (not (= |ULTIMATE.start_property_#res#1| 0))))) [2023-11-19 07:49:02,964 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 07:49:02,964 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 07:49:02,964 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 07:49:02,964 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 07:49:02,968 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 07:49:02,970 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:49:02,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:49:02 BoogieIcfgContainer [2023-11-19 07:49:02,988 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:49:02,988 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:49:02,989 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:49:02,989 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:49:02,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:17" (3/4) ... [2023-11-19 07:49:02,992 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:49:02,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 07:49:03,006 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-19 07:49:03,007 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:49:03,007 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:49:03,008 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:49:03,039 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((var_1_8 % 256) / (var_1_14 % 256)) * (2 % (var_1_15 % 256))) + 1) <= (var_1_12 % 256)) && ((var_1_9 % 256) <= 0)) || (var_1_8 == var_1_12)) || (((var_1_9 % 256) <= 0) && !((\result == 0)))) [2023-11-19 07:49:03,080 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((var_1_8 % 256) / (var_1_14 % 256)) * (2 % (var_1_15 % 256))) + 1) <= (var_1_12 % 256)) && ((var_1_9 % 256) <= 0)) || (var_1_8 == var_1_12)) || (((var_1_9 % 256) <= 0) && !((\result == 0)))) [2023-11-19 07:49:03,136 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:49:03,137 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:49:03,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:49:03,138 INFO L158 Benchmark]: Toolchain (without parser) took 47084.37ms. Allocated memory was 140.5MB in the beginning and 360.7MB in the end (delta: 220.2MB). Free memory was 95.0MB in the beginning and 273.5MB in the end (delta: -178.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-11-19 07:49:03,138 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 140.5MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:03,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.53ms. Allocated memory is still 140.5MB. Free memory was 95.0MB in the beginning and 81.9MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:49:03,140 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.31ms. Allocated memory is still 140.5MB. Free memory was 81.9MB in the beginning and 78.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:49:03,140 INFO L158 Benchmark]: Boogie Preprocessor took 66.51ms. Allocated memory is still 140.5MB. Free memory was 78.2MB in the beginning and 76.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:49:03,141 INFO L158 Benchmark]: RCFGBuilder took 758.56ms. Allocated memory is still 140.5MB. Free memory was 76.6MB in the beginning and 58.2MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:49:03,141 INFO L158 Benchmark]: TraceAbstraction took 45564.31ms. Allocated memory was 140.5MB in the beginning and 360.7MB in the end (delta: 220.2MB). Free memory was 57.7MB in the beginning and 279.8MB in the end (delta: -222.1MB). Peak memory consumption was 167.8MB. Max. memory is 16.1GB. [2023-11-19 07:49:03,142 INFO L158 Benchmark]: Witness Printer took 148.73ms. Allocated memory is still 360.7MB. Free memory was 279.8MB in the beginning and 273.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:49:03,145 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 140.5MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.53ms. Allocated memory is still 140.5MB. Free memory was 95.0MB in the beginning and 81.9MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.31ms. Allocated memory is still 140.5MB. Free memory was 81.9MB in the beginning and 78.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.51ms. Allocated memory is still 140.5MB. Free memory was 78.2MB in the beginning and 76.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 758.56ms. Allocated memory is still 140.5MB. Free memory was 76.6MB in the beginning and 58.2MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 45564.31ms. Allocated memory was 140.5MB in the beginning and 360.7MB in the end (delta: 220.2MB). Free memory was 57.7MB in the beginning and 279.8MB in the end (delta: -222.1MB). Peak memory consumption was 167.8MB. Max. memory is 16.1GB. * Witness Printer took 148.73ms. Allocated memory is still 360.7MB. Free memory was 279.8MB in the beginning and 273.5MB 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, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.5s, OverallIterations: 6, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 18.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 mSolverCounterUnknown, 361 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 313 mSDsluCounter, 2724 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 291 IncrementalHoareTripleChecker+Unchecked, 2008 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 447 IncrementalHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 716 mSDtfsCounter, 447 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1005 GetRequests, 941 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 18.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=2, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 136 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 141 PreInvPairs, 192 NumberOfFragments, 212 HoareAnnotationTreeSize, 141 FomulaSimplifications, 3210 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 3789 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 863 NumberOfCodeBlocks, 863 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 979 ConstructedInterpolants, 9 QuantifiedInterpolants, 5750 SizeOfPredicates, 74 NumberOfNonLiveVariables, 1792 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 5990/6080 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: 108]: Loop Invariant Derived loop invariant: ((((((((var_1_8 % 256) / (var_1_14 % 256)) * (2 % (var_1_15 % 256))) + 1) <= (var_1_12 % 256)) && ((var_1_9 % 256) <= 0)) || (var_1_8 == var_1_12)) || (((var_1_9 % 256) <= 0) && !((\result == 0)))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:49:03,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85d59cc-cda1-4b55-8e8f-1dafb0c87872/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