./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dab30decfbae0c46e4e194ef831d046546cde9953841ff8fbd0a15005d51c024 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:41:10,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:41:10,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:41:10,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:41:10,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:41:10,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:41:10,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:41:10,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:41:10,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:41:10,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:41:10,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:41:10,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:41:10,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:41:10,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:41:10,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:41:10,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:41:10,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:41:10,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:41:10,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:41:10,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:41:10,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:41:10,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:41:10,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:41:10,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:41:10,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:41:10,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:41:10,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:41:10,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:41:10,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:41:10,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:41:10,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:41:10,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:41:10,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:41:10,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:41:10,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:41:10,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:41:10,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:41:10,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:41:10,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:41:10,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:41:10,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:41:10,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:41:11,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:41:11,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:41:11,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:41:11,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:41:11,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:41:11,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:41:11,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:41:11,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:41:11,037 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:41:11,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:41:11,039 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:41:11,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:41:11,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:41:11,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:41:11,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:41:11,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:41:11,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:41:11,041 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:41:11,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:41:11,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:41:11,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:41:11,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:41:11,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:41:11,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:41:11,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:41:11,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:41:11,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:41:11,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:41:11,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:41:11,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:41:11,045 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:41:11,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:41:11,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:41:11,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dab30decfbae0c46e4e194ef831d046546cde9953841ff8fbd0a15005d51c024 [2022-11-20 10:41:11,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:41:11,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:41:11,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:41:11,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:41:11,367 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:41:11,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2022-11-20 10:41:14,414 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:41:14,724 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:41:14,725 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2022-11-20 10:41:14,734 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/data/ddbc35a5b/d6edd2cfe0e4419b83adb0b437e4dcea/FLAGe7609dadd [2022-11-20 10:41:14,755 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/data/ddbc35a5b/d6edd2cfe0e4419b83adb0b437e4dcea [2022-11-20 10:41:14,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:41:14,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:41:14,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:41:14,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:41:14,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:41:14,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:41:14" (1/1) ... [2022-11-20 10:41:14,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f0bc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:14, skipping insertion in model container [2022-11-20 10:41:14,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:41:14" (1/1) ... [2022-11-20 10:41:14,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:41:14,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:41:15,054 WARN L237 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2022-11-20 10:41:15,074 WARN L237 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2022-11-20 10:41:15,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:41:15,107 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:41:15,138 WARN L237 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2022-11-20 10:41:15,142 WARN L237 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2022-11-20 10:41:15,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:41:15,174 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:41:15,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15 WrapperNode [2022-11-20 10:41:15,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:41:15,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:41:15,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:41:15,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:41:15,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,224 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 162 [2022-11-20 10:41:15,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:41:15,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:41:15,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:41:15,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:41:15,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,258 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:41:15,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:41:15,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:41:15,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:41:15,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (1/1) ... [2022-11-20 10:41:15,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:41:15,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:41:15,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:41:15,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:41:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:41:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:41:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:41:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:41:15,468 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:41:15,470 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:41:15,723 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:41:15,729 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:41:15,729 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:41:15,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:41:15 BoogieIcfgContainer [2022-11-20 10:41:15,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:41:15,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:41:15,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:41:15,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:41:15,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:41:14" (1/3) ... [2022-11-20 10:41:15,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@955fbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:41:15, skipping insertion in model container [2022-11-20 10:41:15,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:15" (2/3) ... [2022-11-20 10:41:15,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@955fbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:41:15, skipping insertion in model container [2022-11-20 10:41:15,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:41:15" (3/3) ... [2022-11-20 10:41:15,753 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+nlh-reducer.c [2022-11-20 10:41:15,796 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:41:15,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 10:41:15,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:41:15,881 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15724309, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:41:15,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 10:41:15,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 43 states have internal predecessors, (67), 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) [2022-11-20 10:41:15,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 10:41:15,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:15,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:15,897 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:41:15,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:15,908 INFO L85 PathProgramCache]: Analyzing trace with hash 350471322, now seen corresponding path program 1 times [2022-11-20 10:41:15,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:15,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236264279] [2022-11-20 10:41:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:15,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:41:16,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:41:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:41:16,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:41:16,141 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:41:16,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 10:41:16,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-20 10:41:16,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:41:16,152 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 10:41:16,156 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:41:16,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:41:16 BoogieIcfgContainer [2022-11-20 10:41:16,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:41:16,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:41:16,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:41:16,223 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:41:16,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:41:15" (3/4) ... [2022-11-20 10:41:16,229 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:41:16,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:41:16,230 INFO L158 Benchmark]: Toolchain (without parser) took 1469.85ms. Allocated memory is still 136.3MB. Free memory was 104.6MB in the beginning and 58.7MB in the end (delta: 45.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-20 10:41:16,232 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 169.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:41:16,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.51ms. Allocated memory is still 136.3MB. Free memory was 104.1MB in the beginning and 92.0MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:41:16,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.19ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 90.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:41:16,239 INFO L158 Benchmark]: Boogie Preprocessor took 35.36ms. Allocated memory is still 136.3MB. Free memory was 90.2MB in the beginning and 88.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:41:16,241 INFO L158 Benchmark]: RCFGBuilder took 474.67ms. Allocated memory is still 136.3MB. Free memory was 88.5MB in the beginning and 75.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 10:41:16,242 INFO L158 Benchmark]: TraceAbstraction took 482.32ms. Allocated memory is still 136.3MB. Free memory was 74.8MB in the beginning and 59.2MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 10:41:16,243 INFO L158 Benchmark]: Witness Printer took 6.72ms. Allocated memory is still 136.3MB. Free memory was 59.2MB in the beginning and 58.7MB in the end (delta: 454.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:41:16,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 169.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.51ms. Allocated memory is still 136.3MB. Free memory was 104.1MB in the beginning and 92.0MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.19ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 90.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.36ms. Allocated memory is still 136.3MB. Free memory was 90.2MB in the beginning and 88.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.67ms. Allocated memory is still 136.3MB. Free memory was 88.5MB in the beginning and 75.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 482.32ms. Allocated memory is still 136.3MB. Free memory was 74.8MB in the beginning and 59.2MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 6.72ms. Allocated memory is still 136.3MB. Free memory was 59.2MB in the beginning and 58.7MB in the end (delta: 454.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 70]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of to_real at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 54. Possible FailurePath: [L1] int __return_main; [L12] int __tmp_160_0; [L13] int __tmp_160_1; [L14] int __tmp_160_2; [L15] int __tmp_142_0; [L16] int __tmp_142_1; [L17] int __tmp_136_0; [L18] int __return_165; VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L21] float main__X; [L22] float main__Y; [L23] float main__S; [L24] float main__R; [L25] float main__D; [L26] int main__i; [L27] main__Y = 0 [L28] main__i = 0 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L29] COND TRUE main__i < 100000 [L31] main__X = __VERIFIER_nondet_float() [L32] main__D = __VERIFIER_nondet_float() [L33] int main____CPAchecker_TMP_0; VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=54, main__i=0, main__X=53] [L34] COND TRUE main__X >= -128.0 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=54, main__i=0, main__X=53] [L36] COND TRUE main__X <= 128.0 [L38] main____CPAchecker_TMP_0 = 1 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=54, main__i=0, main__X=53] [L39] COND TRUE main____CPAchecker_TMP_0 != 0 [L41] int main____CPAchecker_TMP_1; VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=54, main__i=0, main__X=53] [L42] COND TRUE main__D >= 0.0 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=54, main__i=0, main__X=53] [L44] COND TRUE main__D <= 16.0 [L46] main____CPAchecker_TMP_1 = 1 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__X=53] [L47] COND TRUE main____CPAchecker_TMP_1 != 0 [L49] main__S = main__Y [L50] main__Y = main__X [L51] main__R = main__X - main__S VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__S=55, main__X=53, main__Y=53] [L52] COND TRUE main__R <= (-main__D) [L54] main__Y = main__S - main__D VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__S=55, main__X=53] [L56] int main____CPAchecker_TMP_2; VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__S=55, main__X=53] [L57] COND FALSE !(main__Y >= -129.0) VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__S=55, main__X=53] [L216] main____CPAchecker_TMP_2 = 0 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=54, main__i=0, main__S=55, main__X=53] [L64] int __tmp_1; [L65] __tmp_1 = main____CPAchecker_TMP_2 [L66] int __VERIFIER_assert__cond; [L67] __VERIFIER_assert__cond = __tmp_1 VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=54, main__i=0, main__S=55, main__X=53] [L68] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=54, main__i=0, main__S=55, main__X=53] [L70] reach_error() VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=54, main__i=0, main__S=55, main__X=53] - UnprovableResult [Line: 126]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 10:41:16,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dab30decfbae0c46e4e194ef831d046546cde9953841ff8fbd0a15005d51c024 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:41:18,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:41:18,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:41:18,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:41:18,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:41:18,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:41:18,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:41:18,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:41:18,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:41:18,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:41:18,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:41:18,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:41:18,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:41:18,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:41:18,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:41:18,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:41:18,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:41:18,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:41:18,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:41:18,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:41:18,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:41:18,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:41:18,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:41:18,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:41:18,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:41:18,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:41:18,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:41:18,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:41:18,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:41:18,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:41:18,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:41:18,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:41:18,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:41:18,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:41:18,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:41:18,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:41:18,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:41:18,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:41:18,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:41:18,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:41:18,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:41:18,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 10:41:18,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:41:18,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:41:18,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:41:18,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:41:18,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:41:18,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:41:18,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:41:18,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:41:18,924 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:41:18,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:41:18,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:41:18,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:41:18,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:41:18,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:41:18,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:41:18,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:41:18,926 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:41:18,926 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:41:18,926 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:41:18,927 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:41:18,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:41:18,927 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:41:18,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:41:18,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:41:18,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:41:18,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:41:18,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:41:18,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:41:18,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:41:18,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:41:18,929 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:41:18,929 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:41:18,929 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:41:18,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:41:18,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:41:18,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:41:18,930 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dab30decfbae0c46e4e194ef831d046546cde9953841ff8fbd0a15005d51c024 [2022-11-20 10:41:19,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:41:19,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:41:19,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:41:19,385 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:41:19,385 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:41:19,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2022-11-20 10:41:22,470 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:41:22,764 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:41:22,765 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2022-11-20 10:41:22,772 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/data/c71798bcf/3bda0cfade4540a597672b593007bc21/FLAG0196fb215 [2022-11-20 10:41:22,788 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/data/c71798bcf/3bda0cfade4540a597672b593007bc21 [2022-11-20 10:41:22,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:41:22,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:41:22,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:41:22,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:41:22,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:41:22,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:41:22" (1/1) ... [2022-11-20 10:41:22,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c3fcefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:22, skipping insertion in model container [2022-11-20 10:41:22,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:41:22" (1/1) ... [2022-11-20 10:41:22,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:41:22,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:41:23,101 WARN L237 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2022-11-20 10:41:23,120 WARN L237 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2022-11-20 10:41:23,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:41:23,168 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:41:23,200 WARN L237 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2022-11-20 10:41:23,211 WARN L237 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_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2022-11-20 10:41:23,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:41:23,243 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:41:23,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23 WrapperNode [2022-11-20 10:41:23,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:41:23,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:41:23,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:41:23,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:41:23,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,316 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 163 [2022-11-20 10:41:23,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:41:23,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:41:23,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:41:23,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:41:23,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,372 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:41:23,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:41:23,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:41:23,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:41:23,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (1/1) ... [2022-11-20 10:41:23,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:41:23,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:41:23,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:41:23,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:41:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:41:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:41:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:41:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:41:23,669 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:41:23,670 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:41:26,155 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:41:26,162 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:41:26,162 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:41:26,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:41:26 BoogieIcfgContainer [2022-11-20 10:41:26,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:41:26,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:41:26,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:41:26,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:41:26,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:41:22" (1/3) ... [2022-11-20 10:41:26,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e15e88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:41:26, skipping insertion in model container [2022-11-20 10:41:26,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:41:23" (2/3) ... [2022-11-20 10:41:26,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e15e88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:41:26, skipping insertion in model container [2022-11-20 10:41:26,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:41:26" (3/3) ... [2022-11-20 10:41:26,184 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+nlh-reducer.c [2022-11-20 10:41:26,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:41:26,201 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 10:41:26,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:41:26,283 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@13359b29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:41:26,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 10:41:26,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 43 states have internal predecessors, (67), 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) [2022-11-20 10:41:26,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 10:41:26,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:26,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:26,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:41:26,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:26,303 INFO L85 PathProgramCache]: Analyzing trace with hash 350471322, now seen corresponding path program 1 times [2022-11-20 10:41:26,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:41:26,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701926042] [2022-11-20 10:41:26,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:26,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:26,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:41:26,330 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:41:26,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:41:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:26,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:41:26,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:33,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:41:33,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:41:33,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701926042] [2022-11-20 10:41:33,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701926042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:33,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:33,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:41:33,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841473932] [2022-11-20 10:41:33,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:33,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:41:33,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:41:33,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:41:33,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:41:33,340 INFO L87 Difference]: Start difference. First operand has 44 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 43 states have internal predecessors, (67), 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) Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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) [2022-11-20 10:41:52,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:52,166 INFO L93 Difference]: Finished difference Result 122 states and 167 transitions. [2022-11-20 10:41:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:41:52,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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) Word has length 16 [2022-11-20 10:41:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:52,179 INFO L225 Difference]: With dead ends: 122 [2022-11-20 10:41:52,179 INFO L226 Difference]: Without dead ends: 68 [2022-11-20 10:41:52,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:41:52,185 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 77 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:52,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 291 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 40 Unchecked, 15.9s Time] [2022-11-20 10:41:52,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-20 10:41:52,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 41. [2022-11-20 10:41:52,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 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) [2022-11-20 10:41:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2022-11-20 10:41:52,218 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 16 [2022-11-20 10:41:52,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:52,219 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2022-11-20 10:41:52,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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) [2022-11-20 10:41:52,219 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2022-11-20 10:41:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 10:41:52,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:52,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:52,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:41:52,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:52,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:41:52,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:52,421 INFO L85 PathProgramCache]: Analyzing trace with hash 257195701, now seen corresponding path program 1 times [2022-11-20 10:41:52,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:41:52,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056878051] [2022-11-20 10:41:52,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:52,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:52,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:41:52,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:41:52,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:41:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:52,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:41:52,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:52,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:41:52,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:41:52,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056878051] [2022-11-20 10:41:52,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056878051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:52,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:52,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:41:52,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493463768] [2022-11-20 10:41:52,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:52,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:41:52,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:41:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:41:52,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:41:52,629 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-20 10:41:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:52,700 INFO L93 Difference]: Finished difference Result 66 states and 86 transitions. [2022-11-20 10:41:52,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:41:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2022-11-20 10:41:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:52,709 INFO L225 Difference]: With dead ends: 66 [2022-11-20 10:41:52,710 INFO L226 Difference]: Without dead ends: 64 [2022-11-20 10:41:52,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:41:52,712 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 32 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:52,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 140 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:41:52,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-20 10:41:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 43. [2022-11-20 10:41:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 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) [2022-11-20 10:41:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-11-20 10:41:52,728 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 16 [2022-11-20 10:41:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:52,729 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-11-20 10:41:52,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-20 10:41:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2022-11-20 10:41:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 10:41:52,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:52,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:52,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-20 10:41:52,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:52,931 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:41:52,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1580255705, now seen corresponding path program 1 times [2022-11-20 10:41:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:41:52,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211479764] [2022-11-20 10:41:52,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:52,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:52,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:41:52,934 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:41:52,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:41:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:53,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:41:53,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:58,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:41:58,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:41:58,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211479764] [2022-11-20 10:41:58,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211479764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:58,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:58,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:41:58,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037702747] [2022-11-20 10:41:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:58,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:41:58,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:41:58,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:41:58,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:41:58,175 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-20 10:42:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:07,753 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2022-11-20 10:42:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:42:07,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) Word has length 17 [2022-11-20 10:42:07,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:07,765 INFO L225 Difference]: With dead ends: 72 [2022-11-20 10:42:07,765 INFO L226 Difference]: Without dead ends: 47 [2022-11-20 10:42:07,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:42:07,767 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 70 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:07,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 74 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 26 Unchecked, 7.0s Time] [2022-11-20 10:42:07,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-20 10:42:07,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2022-11-20 10:42:07,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 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) [2022-11-20 10:42:07,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-11-20 10:42:07,775 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 17 [2022-11-20 10:42:07,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:07,775 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-11-20 10:42:07,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-20 10:42:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2022-11-20 10:42:07,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 10:42:07,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:07,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:07,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:42:07,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:42:07,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:42:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:07,991 INFO L85 PathProgramCache]: Analyzing trace with hash -939704229, now seen corresponding path program 1 times [2022-11-20 10:42:07,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:42:07,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791093903] [2022-11-20 10:42:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:07,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:42:07,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:42:07,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:42:08,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:42:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:08,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:42:08,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:42:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:12,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:42:12,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:42:12,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791093903] [2022-11-20 10:42:12,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791093903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:12,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:12,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:42:12,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840043879] [2022-11-20 10:42:12,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:12,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:42:12,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:42:12,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:42:12,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:42:12,285 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-11-20 10:42:42,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:42,616 INFO L93 Difference]: Finished difference Result 134 states and 177 transitions. [2022-11-20 10:42:42,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:42:42,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) Word has length 17 [2022-11-20 10:42:42,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:42,628 INFO L225 Difference]: With dead ends: 134 [2022-11-20 10:42:42,628 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 10:42:42,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:42:42,630 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 139 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:42,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 94 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 26.5s Time] [2022-11-20 10:42:42,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 10:42:42,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 54. [2022-11-20 10:42:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 53 states have internal predecessors, (69), 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) [2022-11-20 10:42:42,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2022-11-20 10:42:42,643 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 17 [2022-11-20 10:42:42,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:42,645 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2022-11-20 10:42:42,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-11-20 10:42:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2022-11-20 10:42:42,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 10:42:42,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:42,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:42,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:42:42,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:42:42,855 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:42:42,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:42,855 INFO L85 PathProgramCache]: Analyzing trace with hash -530119343, now seen corresponding path program 1 times [2022-11-20 10:42:42,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:42:42,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17549784] [2022-11-20 10:42:42,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:42,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:42:42,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:42:42,857 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:42:42,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:42:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:43,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:42:43,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:42:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:53,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:42:53,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:42:53,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17549784] [2022-11-20 10:42:53,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17549784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:53,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:53,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:42:53,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826671462] [2022-11-20 10:42:53,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:53,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:42:53,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:42:53,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:42:53,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:42:53,543 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-20 10:43:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:07,043 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2022-11-20 10:43:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:43:07,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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) Word has length 17 [2022-11-20 10:43:07,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:07,053 INFO L225 Difference]: With dead ends: 92 [2022-11-20 10:43:07,053 INFO L226 Difference]: Without dead ends: 57 [2022-11-20 10:43:07,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:43:07,055 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 19 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:07,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 110 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 8 Unchecked, 10.6s Time] [2022-11-20 10:43:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-20 10:43:07,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2022-11-20 10:43:07,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 53 states have internal predecessors, (69), 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) [2022-11-20 10:43:07,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2022-11-20 10:43:07,074 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 17 [2022-11-20 10:43:07,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:07,075 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2022-11-20 10:43:07,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-20 10:43:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2022-11-20 10:43:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 10:43:07,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:07,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:07,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:07,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:07,294 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:43:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:07,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1061509134, now seen corresponding path program 1 times [2022-11-20 10:43:07,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:43:07,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419214276] [2022-11-20 10:43:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:07,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:07,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:43:07,297 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:43:07,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:43:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:43:07,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:17,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:43:17,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:43:17,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419214276] [2022-11-20 10:43:17,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419214276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:17,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:43:17,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:43:17,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120900151] [2022-11-20 10:43:17,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:17,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:43:17,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:43:17,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:43:17,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:43:17,734 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-11-20 10:43:31,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:31,952 INFO L93 Difference]: Finished difference Result 86 states and 113 transitions. [2022-11-20 10:43:31,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:43:31,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) Word has length 18 [2022-11-20 10:43:31,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:31,962 INFO L225 Difference]: With dead ends: 86 [2022-11-20 10:43:31,962 INFO L226 Difference]: Without dead ends: 51 [2022-11-20 10:43:31,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:43:31,963 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 52 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:31,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 80 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 25 Unchecked, 10.2s Time] [2022-11-20 10:43:31,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-20 10:43:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2022-11-20 10:43:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 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) [2022-11-20 10:43:31,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2022-11-20 10:43:31,976 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 18 [2022-11-20 10:43:31,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:31,977 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2022-11-20 10:43:31,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-11-20 10:43:31,977 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2022-11-20 10:43:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:43:31,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:31,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:31,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:32,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:32,193 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:43:32,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:32,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1099426199, now seen corresponding path program 1 times [2022-11-20 10:43:32,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:43:32,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832695003] [2022-11-20 10:43:32,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:32,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:32,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:43:32,197 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:43:32,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:43:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:32,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:43:32,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:32,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:32,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:43:32,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:43:32,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832695003] [2022-11-20 10:43:32,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832695003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:32,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:43:32,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:43:32,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3266103] [2022-11-20 10:43:32,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:32,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:43:32,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:43:32,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:43:32,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:43:32,403 INFO L87 Difference]: Start difference. First operand 46 states and 60 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-20 10:43:32,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:32,461 INFO L93 Difference]: Finished difference Result 78 states and 104 transitions. [2022-11-20 10:43:32,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:43:32,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) Word has length 30 [2022-11-20 10:43:32,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:32,464 INFO L225 Difference]: With dead ends: 78 [2022-11-20 10:43:32,464 INFO L226 Difference]: Without dead ends: 76 [2022-11-20 10:43:32,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:43:32,465 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:32,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 153 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:43:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-20 10:43:32,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 48. [2022-11-20 10:43:32,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 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) [2022-11-20 10:43:32,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2022-11-20 10:43:32,475 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 30 [2022-11-20 10:43:32,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:32,476 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2022-11-20 10:43:32,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-20 10:43:32,476 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2022-11-20 10:43:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:43:32,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:32,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:32,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:32,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:32,693 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:43:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1082415538, now seen corresponding path program 1 times [2022-11-20 10:43:32,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:43:32,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347930514] [2022-11-20 10:43:32,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:32,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:32,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:43:32,695 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:43:32,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:43:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:32,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 10:43:32,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:45:06,011 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~main__R~0#1_13| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_21| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_21|)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.leq .cse0 .cse1) (fp.leq .cse2 .cse1) (fp.geq .cse0 (_ +zero 11 53)) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_21|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq |v_ULTIMATE.start_main_~main__R~0#1_13| (fp.neg |v_ULTIMATE.start_main_~main__D~0#1_21|)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse2 (_ +zero 11 53))))) is different from false [2022-11-20 10:45:08,028 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~main__R~0#1_13| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_21| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_21|)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.leq .cse0 .cse1) (fp.leq .cse2 .cse1) (fp.geq .cse0 (_ +zero 11 53)) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_21|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq |v_ULTIMATE.start_main_~main__R~0#1_13| (fp.neg |v_ULTIMATE.start_main_~main__D~0#1_21|)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse2 (_ +zero 11 53))))) is different from true [2022-11-20 10:46:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:30,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:30,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:46:30,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347930514] [2022-11-20 10:46:30,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347930514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:30,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:30,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:46:30,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537645209] [2022-11-20 10:46:30,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:30,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:46:30,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:46:30,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:46:30,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=80, Unknown=8, NotChecked=20, Total=156 [2022-11-20 10:46:30,920 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 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) [2022-11-20 10:46:40,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:40,335 INFO L93 Difference]: Finished difference Result 69 states and 89 transitions. [2022-11-20 10:46:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:46:40,347 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 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) Word has length 30 [2022-11-20 10:46:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:40,347 INFO L225 Difference]: With dead ends: 69 [2022-11-20 10:46:40,348 INFO L226 Difference]: Without dead ends: 67 [2022-11-20 10:46:40,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 50.0s TimeCoverageRelationStatistics Valid=56, Invalid=95, Unknown=9, NotChecked=22, Total=182 [2022-11-20 10:46:40,349 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 32 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:40,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 77 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 99 Unchecked, 3.9s Time] [2022-11-20 10:46:40,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-20 10:46:40,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2022-11-20 10:46:40,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 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) [2022-11-20 10:46:40,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2022-11-20 10:46:40,361 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 30 [2022-11-20 10:46:40,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:40,362 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2022-11-20 10:46:40,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 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) [2022-11-20 10:46:40,362 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2022-11-20 10:46:40,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:46:40,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:40,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:40,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-20 10:46:40,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:46:40,579 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:40,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:40,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2049228407, now seen corresponding path program 1 times [2022-11-20 10:46:40,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:46:40,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063552312] [2022-11-20 10:46:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:40,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:46:40,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:46:40,582 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:46:40,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:46:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:46:40,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:40,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:40,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:40,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:46:40,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063552312] [2022-11-20 10:46:40,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063552312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:40,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:40,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:46:40,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957615394] [2022-11-20 10:46:40,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:40,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:40,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:46:40,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:40,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:40,776 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-11-20 10:46:40,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:40,980 INFO L93 Difference]: Finished difference Result 99 states and 131 transitions. [2022-11-20 10:46:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:40,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-11-20 10:46:40,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:40,981 INFO L225 Difference]: With dead ends: 99 [2022-11-20 10:46:40,981 INFO L226 Difference]: Without dead ends: 63 [2022-11-20 10:46:40,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:40,983 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:40,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:46:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-20 10:46:40,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-20 10:46:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 62 states have internal predecessors, (77), 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) [2022-11-20 10:46:40,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2022-11-20 10:46:40,994 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 30 [2022-11-20 10:46:40,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:40,995 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2022-11-20 10:46:40,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-11-20 10:46:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2022-11-20 10:46:40,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:46:40,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:40,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:41,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:41,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:46:41,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:41,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:41,213 INFO L85 PathProgramCache]: Analyzing trace with hash -345347405, now seen corresponding path program 1 times [2022-11-20 10:46:41,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:46:41,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279821027] [2022-11-20 10:46:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:41,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:46:41,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:46:41,215 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:46:41,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:46:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:41,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:46:41,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:41,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:41,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:46:41,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279821027] [2022-11-20 10:46:41,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279821027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:41,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:41,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:46:41,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502343041] [2022-11-20 10:46:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:41,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:41,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:46:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:41,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:41,440 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-11-20 10:46:41,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:41,533 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2022-11-20 10:46:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:41,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-11-20 10:46:41,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:41,534 INFO L225 Difference]: With dead ends: 88 [2022-11-20 10:46:41,535 INFO L226 Difference]: Without dead ends: 56 [2022-11-20 10:46:41,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:41,536 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:41,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:46:41,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-20 10:46:41,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-20 10:46:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 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) [2022-11-20 10:46:41,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2022-11-20 10:46:41,545 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 30 [2022-11-20 10:46:41,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:41,545 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2022-11-20 10:46:41,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-11-20 10:46:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2022-11-20 10:46:41,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 10:46:41,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:41,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:41,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:41,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:46:41,762 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:41,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:41,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1541729971, now seen corresponding path program 1 times [2022-11-20 10:46:41,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:46:41,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644826293] [2022-11-20 10:46:41,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:41,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:46:41,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:46:41,764 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:46:41,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 10:46:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:41,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 10:46:41,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:14,700 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~main__R~0#1_14| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_22| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_22|)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.geq |v_ULTIMATE.start_main_~main__R~0#1_14| |v_ULTIMATE.start_main_~main__D~0#1_22|) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_22|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq .cse0 .cse1) (fp.leq .cse2 .cse1) (fp.geq .cse2 (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse0 (_ +zero 11 53))))) is different from false [2022-11-20 10:48:16,718 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~main__R~0#1_14| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_22| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_22|)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.geq |v_ULTIMATE.start_main_~main__R~0#1_14| |v_ULTIMATE.start_main_~main__D~0#1_22|) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_22|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq .cse0 .cse1) (fp.leq .cse2 .cse1) (fp.geq .cse2 (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse0 (_ +zero 11 53))))) is different from true [2022-11-20 10:49:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:49:41,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:41,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:41,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644826293] [2022-11-20 10:49:41,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644826293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:41,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:41,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:49:41,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943956911] [2022-11-20 10:49:41,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:41,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:49:41,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:41,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:49:41,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=80, Unknown=8, NotChecked=20, Total=156 [2022-11-20 10:49:41,132 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2022-11-20 10:50:18,694 WARN L233 SmtUtils]: Spent 12.33s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 10:50:22,376 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 16.0)) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~main__D~0#1|))) (and (fp.leq .cse0 .cse1) (exists ((|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_22| (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~main__D~0#1_22|))) (and (fp.leq .cse2 .cse1) (fp.geq |ULTIMATE.start_main_~main__R~0#1| |v_ULTIMATE.start_main_~main__D~0#1_22|) (fp.geq .cse2 (_ +zero 11 53)) (= |c_ULTIMATE.start_main_~main__S~0#1| (fp.add c_currentRoundingMode .cse3 |v_ULTIMATE.start_main_~main__D~0#1_22|))))) (exists ((|v_ULTIMATE.start_main_~main__R~0#1_14| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_22| (_ FloatingPoint 8 24))) (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode |ULTIMATE.start_main_~main__D~0#1|)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~main__D~0#1_22|))) (and (fp.geq |v_ULTIMATE.start_main_~main__R~0#1_14| |v_ULTIMATE.start_main_~main__D~0#1_22|) (fp.leq .cse4 .cse1) (fp.leq .cse5 .cse1) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 |v_ULTIMATE.start_main_~main__D~0#1_22|) |ULTIMATE.start_main_~main__D~0#1|) |c_ULTIMATE.start_main_~main__Y~0#1|) (fp.geq .cse4 (_ +zero 11 53)) (fp.geq .cse5 (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|))))) (exists ((|v_ULTIMATE.start_main_~main__R~0#1_14| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_22| (_ FloatingPoint 8 24))) (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse8 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_22|)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.geq |v_ULTIMATE.start_main_~main__R~0#1_14| |v_ULTIMATE.start_main_~main__D~0#1_22|) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_22|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq .cse6 .cse7) (fp.leq .cse8 .cse7) (fp.geq .cse8 (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse6 (_ +zero 11 53))))) (fp.geq .cse0 (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-11-20 10:50:24,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:24,577 INFO L93 Difference]: Finished difference Result 134 states and 152 transitions. [2022-11-20 10:50:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:50:24,585 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) Word has length 31 [2022-11-20 10:50:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:24,586 INFO L225 Difference]: With dead ends: 134 [2022-11-20 10:50:24,586 INFO L226 Difference]: Without dead ends: 132 [2022-11-20 10:50:24,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 78.3s TimeCoverageRelationStatistics Valid=63, Invalid=115, Unknown=12, NotChecked=50, Total=240 [2022-11-20 10:50:24,588 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 103 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 392 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:24,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 149 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 392 Unchecked, 9.9s Time] [2022-11-20 10:50:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-20 10:50:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 56. [2022-11-20 10:50:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 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) [2022-11-20 10:50:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2022-11-20 10:50:24,601 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 31 [2022-11-20 10:50:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:24,602 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2022-11-20 10:50:24,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2022-11-20 10:50:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2022-11-20 10:50:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 10:50:24,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:24,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:24,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:50:24,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:50:24,811 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:24,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1119028145, now seen corresponding path program 1 times [2022-11-20 10:50:24,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:50:24,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677673332] [2022-11-20 10:50:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:24,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:50:24,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:50:24,813 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:50:24,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 10:50:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:25,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 10:50:25,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:51,291 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 10:52:37,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:37,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677673332] [2022-11-20 10:52:37,488 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-20 10:52:37,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 139 [2022-11-20 10:52:37,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:37,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:37,689 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:933) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:772) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:346) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:306) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 44 more [2022-11-20 10:52:37,692 INFO L158 Benchmark]: Toolchain (without parser) took 674900.05ms. Allocated memory is still 81.8MB. Free memory was 59.8MB in the beginning and 41.8MB in the end (delta: 18.0MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2022-11-20 10:52:37,692 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:52:37,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.84ms. Allocated memory is still 81.8MB. Free memory was 59.6MB in the beginning and 46.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 10:52:37,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.94ms. Allocated memory is still 81.8MB. Free memory was 46.7MB in the beginning and 45.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:52:37,693 INFO L158 Benchmark]: Boogie Preprocessor took 65.58ms. Allocated memory is still 81.8MB. Free memory was 44.8MB in the beginning and 43.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:52:37,694 INFO L158 Benchmark]: RCFGBuilder took 2782.20ms. Allocated memory is still 81.8MB. Free memory was 43.2MB in the beginning and 48.5MB in the end (delta: -5.3MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-11-20 10:52:37,694 INFO L158 Benchmark]: TraceAbstraction took 671523.11ms. Allocated memory is still 81.8MB. Free memory was 47.7MB in the beginning and 41.8MB in the end (delta: 5.9MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-11-20 10:52:37,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.84ms. Allocated memory is still 81.8MB. Free memory was 59.6MB in the beginning and 46.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.94ms. Allocated memory is still 81.8MB. Free memory was 46.7MB in the beginning and 45.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.58ms. Allocated memory is still 81.8MB. Free memory was 44.8MB in the beginning and 43.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2782.20ms. Allocated memory is still 81.8MB. Free memory was 43.2MB in the beginning and 48.5MB in the end (delta: -5.3MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * TraceAbstraction took 671523.11ms. Allocated memory is still 81.8MB. Free memory was 47.7MB in the beginning and 41.8MB in the end (delta: 5.9MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080ed2a7-a19c-46e8-ac4c-29bb7c89832f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.