./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8 --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 bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 --- 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-e04fb08 [2022-11-16 12:03:06,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:03:06,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:03:06,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:03:06,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:03:06,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:03:06,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:03:06,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:03:06,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:03:06,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:03:06,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:03:06,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:03:06,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:03:06,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:03:06,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:03:06,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:03:06,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:03:06,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:03:06,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:03:06,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:03:06,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:03:06,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:03:06,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:03:06,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:03:06,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:03:06,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:03:06,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:03:06,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:03:06,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:03:06,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:03:06,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:03:06,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:03:06,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:03:06,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:03:06,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:03:06,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:03:06,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:03:06,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:03:06,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:03:06,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:03:06,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:03:06,344 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:03:06,398 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:03:06,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:03:06,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:03:06,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:03:06,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:03:06,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:03:06,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:03:06,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:03:06,402 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:03:06,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:03:06,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:03:06,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:03:06,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:03:06,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:03:06,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:03:06,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:03:06,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:03:06,406 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:03:06,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:03:06,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:03:06,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:03:06,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:03:06,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:03:06,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:03:06,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:03:06,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:03:06,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:03:06,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:03:06,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:03:06,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:03:06,409 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:03:06,409 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:03:06,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:03:06,410 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_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 [2022-11-16 12:03:06,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:03:06,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:03:06,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:03:06,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:03:06,784 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:03:06,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2022-11-16 12:03:06,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data/2645d35c0/e5a21d77b3c44f34841b3a0fa793defe/FLAG1ebf9b353 [2022-11-16 12:03:07,400 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:03:07,401 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2022-11-16 12:03:07,409 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data/2645d35c0/e5a21d77b3c44f34841b3a0fa793defe/FLAG1ebf9b353 [2022-11-16 12:03:07,757 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data/2645d35c0/e5a21d77b3c44f34841b3a0fa793defe [2022-11-16 12:03:07,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:03:07,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:03:07,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:03:07,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:03:07,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:03:07,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:07" (1/1) ... [2022-11-16 12:03:07,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da513ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:07, skipping insertion in model container [2022-11-16 12:03:07,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:07" (1/1) ... [2022-11-16 12:03:07,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:03:07,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:03:08,044 WARN L229 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_31adc441-5f45-4ac3-a267-a4bb64ffc988/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2022-11-16 12:03:08,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:03:08,064 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:03:08,147 WARN L229 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_31adc441-5f45-4ac3-a267-a4bb64ffc988/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2022-11-16 12:03:08,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:03:08,177 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:03:08,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08 WrapperNode [2022-11-16 12:03:08,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:03:08,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:03:08,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:03:08,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:03:08,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,250 INFO L138 Inliner]: procedures = 19, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 256 [2022-11-16 12:03:08,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:03:08,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:03:08,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:03:08,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:03:08,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,285 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:03:08,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:03:08,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:03:08,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:03:08,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:03:08,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:03:08,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:03:08,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:03:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:03:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:03:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:03:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 12:03:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:03:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-16 12:03:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:03:08,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:03:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:03:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:03:08,549 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:03:08,551 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:03:09,060 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:03:09,067 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:03:09,079 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-16 12:03:09,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:09 BoogieIcfgContainer [2022-11-16 12:03:09,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:03:09,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:03:09,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:03:09,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:03:09,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:03:07" (1/3) ... [2022-11-16 12:03:09,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cec87ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:09, skipping insertion in model container [2022-11-16 12:03:09,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08" (2/3) ... [2022-11-16 12:03:09,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cec87ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:09, skipping insertion in model container [2022-11-16 12:03:09,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:09" (3/3) ... [2022-11-16 12:03:09,094 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2022-11-16 12:03:09,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:03:09,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:03:09,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:03:09,205 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;@52074675, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:03:09,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:03:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 1.7115384615384615) internal successors, (89), 53 states have internal predecessors, (89), 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) [2022-11-16 12:03:09,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:03:09,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:09,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:09,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:09,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:09,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1391949936, now seen corresponding path program 1 times [2022-11-16 12:03:09,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:09,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100816642] [2022-11-16 12:03:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:09,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:09,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:09,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100816642] [2022-11-16 12:03:09,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100816642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:09,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:09,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:03:09,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441677074] [2022-11-16 12:03:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:09,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:03:09,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:09,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:03:09,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:03:09,508 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 1.7115384615384615) internal successors, (89), 53 states have internal predecessors, (89), 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 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-16 12:03:09,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:09,534 INFO L93 Difference]: Finished difference Result 105 states and 174 transitions. [2022-11-16 12:03:09,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:03:09,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-16 12:03:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:09,546 INFO L225 Difference]: With dead ends: 105 [2022-11-16 12:03:09,546 INFO L226 Difference]: Without dead ends: 50 [2022-11-16 12:03:09,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:03:09,558 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:09,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:03:09,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-16 12:03:09,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-16 12:03:09,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 49 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) [2022-11-16 12:03:09,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2022-11-16 12:03:09,614 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 12 [2022-11-16 12:03:09,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:09,615 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2022-11-16 12:03:09,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-16 12:03:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2022-11-16 12:03:09,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 12:03:09,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:09,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:09,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:03:09,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:09,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:09,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1010337379, now seen corresponding path program 1 times [2022-11-16 12:03:09,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:09,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127793061] [2022-11-16 12:03:09,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:09,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:09,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:09,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127793061] [2022-11-16 12:03:09,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127793061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:09,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:09,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:09,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740107364] [2022-11-16 12:03:09,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:09,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:09,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:09,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:09,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:09,715 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-16 12:03:09,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:09,752 INFO L93 Difference]: Finished difference Result 93 states and 130 transitions. [2022-11-16 12:03:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:09,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-16 12:03:09,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:09,755 INFO L225 Difference]: With dead ends: 93 [2022-11-16 12:03:09,756 INFO L226 Difference]: Without dead ends: 50 [2022-11-16 12:03:09,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:09,758 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:09,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:03:09,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-16 12:03:09,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-16 12:03:09,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 49 states have internal predecessors, (68), 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) [2022-11-16 12:03:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2022-11-16 12:03:09,772 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 13 [2022-11-16 12:03:09,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:09,773 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2022-11-16 12:03:09,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-16 12:03:09,774 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2022-11-16 12:03:09,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:03:09,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:09,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:09,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:03:09,776 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:09,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:09,776 INFO L85 PathProgramCache]: Analyzing trace with hash 35506552, now seen corresponding path program 1 times [2022-11-16 12:03:09,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:09,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407998325] [2022-11-16 12:03:09,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:09,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:03:09,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:03:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:03:10,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:03:10,070 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:03:10,072 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:03:10,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:03:10,080 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 12:03:10,084 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:03:10,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:03:10 BoogieIcfgContainer [2022-11-16 12:03:10,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:03:10,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:03:10,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:03:10,167 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:03:10,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:09" (3/4) ... [2022-11-16 12:03:10,172 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:03:10,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:03:10,174 INFO L158 Benchmark]: Toolchain (without parser) took 2412.12ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 68.2MB in the beginning and 57.2MB in the end (delta: 11.1MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-11-16 12:03:10,175 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory was 52.6MB in the beginning and 52.5MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:03:10,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.68ms. Allocated memory is still 100.7MB. Free memory was 68.0MB in the beginning and 73.0MB in the end (delta: -5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:03:10,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.10ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 70.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:03:10,186 INFO L158 Benchmark]: Boogie Preprocessor took 39.86ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:03:10,187 INFO L158 Benchmark]: RCFGBuilder took 791.13ms. Allocated memory is still 100.7MB. Free memory was 68.0MB in the beginning and 45.4MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-16 12:03:10,188 INFO L158 Benchmark]: TraceAbstraction took 1080.76ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 44.6MB in the beginning and 57.2MB in the end (delta: -12.6MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-11-16 12:03:10,189 INFO L158 Benchmark]: Witness Printer took 6.42ms. Allocated memory is still 121.6MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:03:10,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory was 52.6MB in the beginning and 52.5MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.68ms. Allocated memory is still 100.7MB. Free memory was 68.0MB in the beginning and 73.0MB in the end (delta: -5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.10ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 70.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.86ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 791.13ms. Allocated memory is still 100.7MB. Free memory was 68.0MB in the beginning and 45.4MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1080.76ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 44.6MB in the beginning and 57.2MB in the end (delta: -12.6MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 6.42ms. Allocated memory is still 121.6MB. Free memory is still 57.2MB. 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: 190]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryArithmeticDOUBLEoperation at line 147. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L118] static const double zero_log10 = 0.0; [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L184] CALL, EXPR isfinite_double(x) [L166] __int32_t hx; VAL [\old(x)=18014398509481998, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481998, zero=0, zero_log10=0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=18014398509481998, \result=-1, hx=7, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481998, zero=0, zero_log10=0] [L184] RET, EXPR isfinite_double(x) [L184] x < 0 && isfinite_double(x) VAL [isfinite_double(x)=-1, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481998, x < 0 && isfinite_double(x)=1, zero=0, zero_log10=0] [L184] COND TRUE x < 0 && isfinite_double(x) [L186] CALL, EXPR __ieee754_log10(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [\old(x)=18014398509481998, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481998, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [\old(x)=18014398509481998, hx=2146435072, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=2, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481998, zero=0, zero_log10=0] [L133] COND FALSE !(hx < 0x00100000) VAL [\old(x)=18014398509481998, hx=2146435072, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=2, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481998, zero=0, zero_log10=0] [L146] COND TRUE hx >= 0x7ff00000 [L147] return x + x; VAL [\old(x)=18014398509481998, hx=2146435072, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=2, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481998, zero=0, zero_log10=0] [L186] RET, EXPR __ieee754_log10(x) [L186] double res = __ieee754_log10(x); [L189] CALL, EXPR isnan_double(res) [L163] return x != x; VAL [\old(x)=18014398509481997, \result=0, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481997, zero=0, zero_log10=0] [L189] RET, EXPR isnan_double(res) [L189] COND TRUE !isnan_double(res) [L190] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, res=18014398509481997, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481998, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 207 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 143 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2022-11-16 12:03:10,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8 --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 bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 --- 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-e04fb08 [2022-11-16 12:03:12,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:03:12,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:03:12,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:03:12,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:03:12,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:03:12,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:03:12,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:03:12,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:03:12,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:03:12,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:03:12,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:03:12,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:03:12,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:03:12,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:03:12,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:03:12,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:03:12,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:03:12,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:03:12,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:03:12,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:03:12,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:03:12,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:03:12,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:03:12,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:03:12,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:03:12,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:03:12,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:03:12,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:03:12,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:03:12,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:03:12,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:03:12,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:03:12,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:03:12,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:03:12,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:03:12,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:03:12,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:03:12,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:03:12,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:03:12,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:03:12,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 12:03:12,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:03:12,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:03:12,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:03:12,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:03:12,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:03:12,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:03:12,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:03:12,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:03:12,859 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:03:12,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:03:12,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:03:12,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:03:12,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:03:12,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:03:12,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:03:12,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:03:12,862 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:03:12,862 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:03:12,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:03:12,862 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:03:12,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:03:12,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:03:12,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:03:12,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:03:12,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:03:12,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:03:12,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:03:12,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:03:12,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:03:12,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:03:12,866 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:03:12,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:03:12,866 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:03:12,867 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:03:12,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:03:12,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:03:12,867 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_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 [2022-11-16 12:03:13,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:03:13,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:03:13,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:03:13,339 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:03:13,342 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:03:13,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2022-11-16 12:03:13,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data/364cc4162/95acafb5fcba4733b26b95bbf1327905/FLAG0eaeffad9 [2022-11-16 12:03:14,085 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:03:14,086 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2022-11-16 12:03:14,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data/364cc4162/95acafb5fcba4733b26b95bbf1327905/FLAG0eaeffad9 [2022-11-16 12:03:14,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/data/364cc4162/95acafb5fcba4733b26b95bbf1327905 [2022-11-16 12:03:14,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:03:14,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:03:14,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:03:14,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:03:14,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:03:14,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:14,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32764cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14, skipping insertion in model container [2022-11-16 12:03:14,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:14,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:03:14,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:03:14,691 WARN L229 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_31adc441-5f45-4ac3-a267-a4bb64ffc988/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2022-11-16 12:03:14,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:03:14,746 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:03:14,833 WARN L229 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_31adc441-5f45-4ac3-a267-a4bb64ffc988/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2022-11-16 12:03:14,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:03:14,868 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:03:14,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14 WrapperNode [2022-11-16 12:03:14,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:03:14,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:03:14,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:03:14,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:03:14,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:14,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:14,953 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 241 [2022-11-16 12:03:14,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:03:14,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:03:14,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:03:14,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:03:14,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:14,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:14,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:14,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:15,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:15,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:15,023 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:15,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:15,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:03:15,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:03:15,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:03:15,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:03:15,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (1/1) ... [2022-11-16 12:03:15,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:03:15,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:03:15,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:03:15,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:03:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:03:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-16 12:03:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-16 12:03:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:03:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:03:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 12:03:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:03:15,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:03:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:03:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:03:15,266 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:03:15,268 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:03:50,264 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:03:50,270 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:03:50,271 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-16 12:03:50,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:50 BoogieIcfgContainer [2022-11-16 12:03:50,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:03:50,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:03:50,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:03:50,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:03:50,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:03:14" (1/3) ... [2022-11-16 12:03:50,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa57498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:50, skipping insertion in model container [2022-11-16 12:03:50,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:14" (2/3) ... [2022-11-16 12:03:50,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa57498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:50, skipping insertion in model container [2022-11-16 12:03:50,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:50" (3/3) ... [2022-11-16 12:03:50,284 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2022-11-16 12:03:50,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:03:50,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:03:50,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:03:50,405 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;@3da9831f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:03:50,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:03:50,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.702127659574468) internal successors, (80), 48 states have internal predecessors, (80), 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) [2022-11-16 12:03:50,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:03:50,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:50,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:50,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:50,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:50,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2022-11-16 12:03:50,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:03:50,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372233541] [2022-11-16 12:03:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:50,439 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 [2022-11-16 12:03:50,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:03:50,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:03:50,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:50,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:03:50,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:03:50,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:50,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:03:50,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:03:50,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372233541] [2022-11-16 12:03:50,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372233541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:50,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:50,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:03:50,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389390393] [2022-11-16 12:03:50,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:50,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:03:50,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:03:50,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:03:50,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:03:50,805 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.702127659574468) internal successors, (80), 48 states have internal predecessors, (80), 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 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-16 12:03:50,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:50,864 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2022-11-16 12:03:50,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:03:50,869 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-16 12:03:50,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:50,877 INFO L225 Difference]: With dead ends: 95 [2022-11-16 12:03:50,878 INFO L226 Difference]: Without dead ends: 45 [2022-11-16 12:03:50,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:03:50,884 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:50,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:03:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-16 12:03:50,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-16 12:03:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 44 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) [2022-11-16 12:03:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2022-11-16 12:03:50,921 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2022-11-16 12:03:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:50,921 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2022-11-16 12:03:50,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-16 12:03:50,922 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2022-11-16 12:03:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 12:03:50,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:50,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:50,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:51,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:51,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:51,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:51,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2022-11-16 12:03:51,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:03:51,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135088298] [2022-11-16 12:03:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:51,133 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 [2022-11-16 12:03:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:03:51,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:03:51,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:51,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:03:51,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:03:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:51,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:03:51,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:03:51,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135088298] [2022-11-16 12:03:51,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135088298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:51,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:51,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:51,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809299298] [2022-11-16 12:03:51,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:51,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:51,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:03:51,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:51,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:51,463 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-16 12:03:51,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:51,839 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2022-11-16 12:03:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:51,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-16 12:03:51,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:51,842 INFO L225 Difference]: With dead ends: 83 [2022-11-16 12:03:51,842 INFO L226 Difference]: Without dead ends: 45 [2022-11-16 12:03:51,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:51,844 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:51,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:03:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-16 12:03:51,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-16 12:03:51,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 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) [2022-11-16 12:03:51,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2022-11-16 12:03:51,859 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2022-11-16 12:03:51,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:51,859 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2022-11-16 12:03:51,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-16 12:03:51,860 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2022-11-16 12:03:51,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:03:51,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:51,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:51,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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)] Forceful destruction successful, exit code 0 [2022-11-16 12:03:52,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:52,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2022-11-16 12:03:52,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:03:52,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130795669] [2022-11-16 12:03:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:52,063 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 [2022-11-16 12:03:52,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:03:52,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:03:52,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:52,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:03:52,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:03:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:53,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:03:53,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:03:53,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130795669] [2022-11-16 12:03:53,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130795669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:53,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:53,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:03:53,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108074424] [2022-11-16 12:03:53,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:53,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:03:53,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:03:53,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:03:53,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:03:53,846 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) 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) [2022-11-16 12:03:53,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:53,866 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2022-11-16 12:03:53,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:03:53,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) 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 [2022-11-16 12:03:53,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:53,868 INFO L225 Difference]: With dead ends: 74 [2022-11-16 12:03:53,868 INFO L226 Difference]: Without dead ends: 45 [2022-11-16 12:03:53,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:03:53,870 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:53,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-16 12:03:53,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-16 12:03:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-16 12:03:53,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 states have internal predecessors, (58), 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) [2022-11-16 12:03:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2022-11-16 12:03:53,879 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 17 [2022-11-16 12:03:53,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:53,880 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2022-11-16 12:03:53,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) 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) [2022-11-16 12:03:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2022-11-16 12:03:53,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:03:53,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:53,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:53,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:54,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:54,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:54,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:54,088 INFO L85 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2022-11-16 12:03:54,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:03:54,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103123015] [2022-11-16 12:03:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:54,088 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 [2022-11-16 12:03:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:03:54,095 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:03:54,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:55,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:03:55,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:03:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:57,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:03:57,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:03:57,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103123015] [2022-11-16 12:03:57,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103123015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:57,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:57,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:03:57,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019591738] [2022-11-16 12:03:57,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:57,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:03:57,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:03:57,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:03:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:03:57,023 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) 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) [2022-11-16 12:03:57,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:57,039 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2022-11-16 12:03:57,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:03:57,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) 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 [2022-11-16 12:03:57,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:57,041 INFO L225 Difference]: With dead ends: 50 [2022-11-16 12:03:57,041 INFO L226 Difference]: Without dead ends: 45 [2022-11-16 12:03:57,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:03:57,043 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:57,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-16 12:03:57,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-16 12:03:57,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-16 12:03:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 44 states have internal predecessors, (57), 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) [2022-11-16 12:03:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2022-11-16 12:03:57,050 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 17 [2022-11-16 12:03:57,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:57,050 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2022-11-16 12:03:57,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) 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) [2022-11-16 12:03:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2022-11-16 12:03:57,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 12:03:57,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:57,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:57,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:57,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:57,259 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:57,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash 473095487, now seen corresponding path program 1 times [2022-11-16 12:03:57,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:03:57,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780564508] [2022-11-16 12:03:57,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:57,260 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 [2022-11-16 12:03:57,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:03:57,264 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:03:57,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:03:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:58,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:03:58,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:00,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:00,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:04:00,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:04:00,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780564508] [2022-11-16 12:04:00,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780564508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:00,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:00,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:00,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239847980] [2022-11-16 12:04:00,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:00,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:00,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:04:00,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:00,559 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2022-11-16 12:04:01,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:04,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:08,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:11,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:12,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:14,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:18,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:21,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:24,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:26,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:29,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:31,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:34,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:36,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:39,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:39,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:39,082 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2022-11-16 12:04:39,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:04:39,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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 [2022-11-16 12:04:39,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:39,227 INFO L225 Difference]: With dead ends: 50 [2022-11-16 12:04:39,228 INFO L226 Difference]: Without dead ends: 45 [2022-11-16 12:04:39,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:04:39,229 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 2 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 37.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:39,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 227 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 12 Unknown, 6 Unchecked, 37.5s Time] [2022-11-16 12:04:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-16 12:04:39,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-16 12:04:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 44 states have internal predecessors, (56), 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) [2022-11-16 12:04:39,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-16 12:04:39,241 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 18 [2022-11-16 12:04:39,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:39,242 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-16 12:04:39,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2022-11-16 12:04:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-16 12:04:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 12:04:39,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:39,243 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] [2022-11-16 12:04:39,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:39,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:39,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:39,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:39,446 INFO L85 PathProgramCache]: Analyzing trace with hash 954143623, now seen corresponding path program 1 times [2022-11-16 12:04:39,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:04:39,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972518572] [2022-11-16 12:04:39,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:39,446 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 [2022-11-16 12:04:39,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:04:39,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:04:39,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:39,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:04:39,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:42,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:42,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:04:42,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:04:42,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972518572] [2022-11-16 12:04:42,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972518572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:42,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:42,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:04:42,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873900298] [2022-11-16 12:04:42,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:42,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:04:42,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:04:42,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:04:42,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:42,252 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2022-11-16 12:04:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:42,256 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2022-11-16 12:04:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:04:42,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2022-11-16 12:04:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:42,257 INFO L225 Difference]: With dead ends: 45 [2022-11-16 12:04:42,257 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:04:42,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:04:42,259 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:42,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-11-16 12:04:42,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:04:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:04:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:42,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:04:42,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-16 12:04:42,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:42,262 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:04:42,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2022-11-16 12:04:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:04:42,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:04:42,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:04:42,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:42,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:42,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:04:43,713 INFO L895 garLoopResultBuilder]: At program point L159(lines 120 160) the Hoare annotation is: (and (exists ((|ULTIMATE.start___ieee754_log10_~x#1| (_ FloatingPoint 11 53))) (= |ULTIMATE.start___ieee754_log10_#res#1| (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_log10_~x#1| |ULTIMATE.start___ieee754_log10_~x#1|) (_ +zero 11 53)))) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-16 12:04:43,713 INFO L899 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2022-11-16 12:04:43,714 INFO L899 garLoopResultBuilder]: For program point L184-2(lines 184 193) no Hoare annotation was computed. [2022-11-16 12:04:43,714 INFO L899 garLoopResultBuilder]: For program point L184-4(lines 184 193) no Hoare annotation was computed. [2022-11-16 12:04:43,714 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2022-11-16 12:04:43,714 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2022-11-16 12:04:43,714 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:04:43,715 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:04:43,715 INFO L899 garLoopResultBuilder]: For program point L152-1(lines 152 157) no Hoare annotation was computed. [2022-11-16 12:04:43,715 INFO L895 garLoopResultBuilder]: At program point L152-2(lines 152 157) the Hoare annotation is: false [2022-11-16 12:04:43,715 INFO L899 garLoopResultBuilder]: For program point L152-3(lines 152 157) no Hoare annotation was computed. [2022-11-16 12:04:43,716 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 57) no Hoare annotation was computed. [2022-11-16 12:04:43,716 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 111) no Hoare annotation was computed. [2022-11-16 12:04:43,716 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2022-11-16 12:04:43,716 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 37 42) no Hoare annotation was computed. [2022-11-16 12:04:43,716 INFO L895 garLoopResultBuilder]: At program point L37-2(lines 37 42) the Hoare annotation is: false [2022-11-16 12:04:43,717 INFO L899 garLoopResultBuilder]: For program point L37-3(lines 37 42) no Hoare annotation was computed. [2022-11-16 12:04:43,717 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 47) no Hoare annotation was computed. [2022-11-16 12:04:43,717 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 87) no Hoare annotation was computed. [2022-11-16 12:04:43,717 INFO L902 garLoopResultBuilder]: At program point L195(lines 175 196) the Hoare annotation is: true [2022-11-16 12:04:43,717 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 63 68) no Hoare annotation was computed. [2022-11-16 12:04:43,718 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 63 68) the Hoare annotation is: false [2022-11-16 12:04:43,718 INFO L899 garLoopResultBuilder]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2022-11-16 12:04:43,718 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 79) no Hoare annotation was computed. [2022-11-16 12:04:43,718 INFO L895 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) [2022-11-16 12:04:43,719 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 86) no Hoare annotation was computed. [2022-11-16 12:04:43,719 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 49) no Hoare annotation was computed. [2022-11-16 12:04:43,719 INFO L895 garLoopResultBuilder]: At program point L172(lines 165 173) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-16 12:04:43,719 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 109) no Hoare annotation was computed. [2022-11-16 12:04:43,720 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 78) no Hoare annotation was computed. [2022-11-16 12:04:43,720 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 110) no Hoare annotation was computed. [2022-11-16 12:04:43,720 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:04:43,720 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2022-11-16 12:04:43,720 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 190) no Hoare annotation was computed. [2022-11-16 12:04:43,721 INFO L899 garLoopResultBuilder]: For program point L140-1(lines 140 144) no Hoare annotation was computed. [2022-11-16 12:04:43,721 INFO L895 garLoopResultBuilder]: At program point L140-2(lines 140 144) the Hoare annotation is: false [2022-11-16 12:04:43,721 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:04:43,721 INFO L899 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2022-11-16 12:04:43,721 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 145) no Hoare annotation was computed. [2022-11-16 12:04:43,722 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 120 160) no Hoare annotation was computed. [2022-11-16 12:04:43,722 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2022-11-16 12:04:43,722 INFO L899 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2022-11-16 12:04:43,723 INFO L895 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start___ieee754_log10_~x#1| ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2022-11-16 12:04:43,723 INFO L899 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2022-11-16 12:04:43,724 INFO L895 garLoopResultBuilder]: At program point L109(lines 32 111) the Hoare annotation is: false [2022-11-16 12:04:43,724 INFO L899 garLoopResultBuilder]: For program point L167-1(lines 167 171) no Hoare annotation was computed. [2022-11-16 12:04:43,724 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 135) no Hoare annotation was computed. [2022-11-16 12:04:43,724 INFO L895 garLoopResultBuilder]: At program point L167-2(lines 167 171) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-16 12:04:43,725 INFO L899 garLoopResultBuilder]: For program point L167-3(lines 167 171) no Hoare annotation was computed. [2022-11-16 12:04:43,729 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 12:04:43,731 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:04:43,745 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,746 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,747 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,747 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,748 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,748 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,749 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,749 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,750 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,750 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,751 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-11-16 12:04:43,751 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-11-16 12:04:43,751 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,752 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,752 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,752 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-11-16 12:04:43,752 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-11-16 12:04:43,753 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,754 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,754 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,754 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,755 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:04:43 BoogieIcfgContainer [2022-11-16 12:04:43,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:04:43,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:04:43,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:04:43,757 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:04:43,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:50" (3/4) ... [2022-11-16 12:04:43,761 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:04:43,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2022-11-16 12:04:43,792 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-16 12:04:43,792 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:04:43,793 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:04:43,824 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-11-16 12:04:43,825 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-11-16 12:04:43,825 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2022-11-16 12:04:43,825 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start___ieee754_log10_~x#1 : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10_~x#1, ULTIMATE.start___ieee754_log10_~x#1), ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-11-16 12:04:43,826 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2022-11-16 12:04:43,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:04:43,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:04:43,864 INFO L158 Benchmark]: Toolchain (without parser) took 89440.94ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.3MB in the beginning and 48.3MB in the end (delta: -11.0MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-11-16 12:04:43,864 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:04:43,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.49ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 39.8MB in the end (delta: -2.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:04:43,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.43ms. Allocated memory is still 58.7MB. Free memory was 39.8MB in the beginning and 37.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:04:43,866 INFO L158 Benchmark]: Boogie Preprocessor took 75.46ms. Allocated memory is still 58.7MB. Free memory was 37.4MB in the beginning and 35.1MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:04:43,866 INFO L158 Benchmark]: RCFGBuilder took 35243.94ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.0MB in the beginning and 40.3MB in the end (delta: -5.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-11-16 12:04:43,867 INFO L158 Benchmark]: TraceAbstraction took 53479.83ms. Allocated memory is still 71.3MB. Free memory was 39.5MB in the beginning and 27.7MB in the end (delta: 11.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-11-16 12:04:43,868 INFO L158 Benchmark]: Witness Printer took 106.44ms. Allocated memory is still 71.3MB. Free memory was 27.7MB in the beginning and 48.3MB in the end (delta: -20.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:04:43,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.49ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 39.8MB in the end (delta: -2.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.43ms. Allocated memory is still 58.7MB. Free memory was 39.8MB in the beginning and 37.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.46ms. Allocated memory is still 58.7MB. Free memory was 37.4MB in the beginning and 35.1MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 35243.94ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.0MB in the beginning and 40.3MB in the end (delta: -5.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 53479.83ms. Allocated memory is still 71.3MB. Free memory was 39.5MB in the beginning and 27.7MB in the end (delta: 11.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 106.44ms. Allocated memory is still 71.3MB. Free memory was 27.7MB in the beginning and 48.3MB in the end (delta: -20.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 190]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 39.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 37.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 924 SdHoareTripleChecker+Invalid, 35.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 52 IncrementalHoareTripleChecker+Unchecked, 633 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 291 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 66 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 34 QuantifiedInterpolants, 536 SizeOfPredicates, 30 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 167]: Loop Invariant [2022-11-16 12:04:43,901 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,902 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,905 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,905 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant [2022-11-16 12:04:43,907 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,907 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,907 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,907 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 120]: Loop Invariant [2022-11-16 12:04:43,909 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,909 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,909 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-11-16 12:04:43,909 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-11-16 12:04:43,910 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,910 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,911 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-11-16 12:04:43,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-11-16 12:04:43,911 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists ULTIMATE.start___ieee754_log10_~x#1 : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10_~x#1, ULTIMATE.start___ieee754_log10_~x#1), ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 125]: Loop Invariant [2022-11-16 12:04:43,916 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,919 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-16 12:04:43,919 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:04:43,922 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) RESULT: Ultimate proved your program to be correct! [2022-11-16 12:04:44,126 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-16 12:04:44,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31adc441-5f45-4ac3-a267-a4bb64ffc988/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE