./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R --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 95e4857f2e80c4b2a09349ad506a32e395132bf666c8dc52d9ee1d4dade10d91 --- 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-38b53e6 [2022-11-25 18:18:19,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:18:19,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:18:19,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:18:19,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:18:19,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:18:19,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:18:19,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:18:19,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:18:19,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:18:19,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:18:19,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:18:19,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:18:19,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:18:19,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:18:19,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:18:19,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:18:19,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:18:19,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:18:19,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:18:19,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:18:19,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:18:19,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:18:19,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:18:19,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:18:19,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:18:19,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:18:19,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:18:19,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:18:19,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:18:19,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:18:19,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:18:19,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:18:19,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:18:19,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:18:19,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:18:19,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:18:19,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:18:19,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:18:19,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:18:19,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:18:19,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:18:19,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:18:19,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:18:19,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:18:19,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:18:19,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:18:19,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:18:19,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:18:19,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:18:19,499 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:18:19,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:18:19,500 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:18:19,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:18:19,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:18:19,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:18:19,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:18:19,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:18:19,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:18:19,508 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:18:19,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:18:19,508 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:18:19,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:18:19,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:18:19,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:18:19,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:18:19,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:18:19,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:18:19,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:18:19,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:18:19,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:18:19,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:18:19,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:18:19,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:18:19,513 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:18:19,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:18:19,514 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e4857f2e80c4b2a09349ad506a32e395132bf666c8dc52d9ee1d4dade10d91 [2022-11-25 18:18:19,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:18:19,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:18:19,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:18:19,846 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:18:19,846 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:18:19,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2022-11-25 18:18:22,841 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:18:23,033 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:18:23,034 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2022-11-25 18:18:23,040 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/data/cb0e3061d/e648ba9421044ac59b8a5a584b697852/FLAG2e3347b48 [2022-11-25 18:18:23,055 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/data/cb0e3061d/e648ba9421044ac59b8a5a584b697852 [2022-11-25 18:18:23,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:18:23,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:18:23,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:18:23,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:18:23,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:18:23,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3c5fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23, skipping insertion in model container [2022-11-25 18:18:23,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:18:23,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:18:23,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/sv-benchmarks/c/float-newlib/float_req_bl_1230.c[1411,1424] [2022-11-25 18:18:23,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:18:23,299 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:18:23,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/sv-benchmarks/c/float-newlib/float_req_bl_1230.c[1411,1424] [2022-11-25 18:18:23,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:18:23,352 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:18:23,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23 WrapperNode [2022-11-25 18:18:23,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:18:23,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:18:23,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:18:23,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:18:23,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,393 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2022-11-25 18:18:23,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:18:23,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:18:23,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:18:23,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:18:23,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,425 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:18:23,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:18:23,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:18:23,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:18:23,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (1/1) ... [2022-11-25 18:18:23,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:18:23,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:18:23,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:18:23,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:18:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:18:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:18:23,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:18:23,533 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2022-11-25 18:18:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2022-11-25 18:18:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-25 18:18:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:18:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:18:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:18:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:18:23,644 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:18:23,647 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:18:23,874 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:18:23,880 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:18:23,880 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:18:23,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:18:23 BoogieIcfgContainer [2022-11-25 18:18:23,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:18:23,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:18:23,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:18:23,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:18:23,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:18:23" (1/3) ... [2022-11-25 18:18:23,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2debe9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:18:23, skipping insertion in model container [2022-11-25 18:18:23,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:23" (2/3) ... [2022-11-25 18:18:23,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2debe9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:18:23, skipping insertion in model container [2022-11-25 18:18:23,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:18:23" (3/3) ... [2022-11-25 18:18:23,909 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2022-11-25 18:18:23,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:18:23,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:18:24,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:18:24,040 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;@5fe8022f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:18:24,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:18:24,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:18:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 18:18:24,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:24,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:24,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:24,065 INFO L85 PathProgramCache]: Analyzing trace with hash -66623695, now seen corresponding path program 1 times [2022-11-25 18:18:24,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:18:24,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208612390] [2022-11-25 18:18:24,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:24,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:18:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:24,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:18:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:24,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:18:24,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208612390] [2022-11-25 18:18:24,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208612390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:24,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:24,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:18:24,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77524282] [2022-11-25 18:18:24,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:24,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:18:24,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:18:24,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:18:24,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:18:24,358 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:24,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:24,430 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2022-11-25 18:18:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:18:24,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 18:18:24,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:24,448 INFO L225 Difference]: With dead ends: 47 [2022-11-25 18:18:24,448 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 18:18:24,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:18:24,461 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:24,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 56 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:24,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 18:18:24,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 18:18:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:18:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2022-11-25 18:18:24,518 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 14 [2022-11-25 18:18:24,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:24,519 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2022-11-25 18:18:24,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2022-11-25 18:18:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 18:18:24,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:24,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:24,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:18:24,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:24,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:24,526 INFO L85 PathProgramCache]: Analyzing trace with hash -812579763, now seen corresponding path program 1 times [2022-11-25 18:18:24,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:18:24,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812950418] [2022-11-25 18:18:24,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:24,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:18:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:24,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:18:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:24,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:18:24,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812950418] [2022-11-25 18:18:24,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812950418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:24,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:24,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:18:24,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622963866] [2022-11-25 18:18:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:24,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:18:24,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:18:24,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:18:24,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:18:24,968 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:25,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:25,038 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-11-25 18:18:25,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:18:25,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-25 18:18:25,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:25,041 INFO L225 Difference]: With dead ends: 31 [2022-11-25 18:18:25,043 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 18:18:25,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:18:25,046 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:25,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 87 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:18:25,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 18:18:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-25 18:18:25,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:18:25,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-11-25 18:18:25,057 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 15 [2022-11-25 18:18:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:25,058 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-11-25 18:18:25,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-11-25 18:18:25,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 18:18:25,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:25,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:25,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:18:25,060 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:25,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:25,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1926836980, now seen corresponding path program 1 times [2022-11-25 18:18:25,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:18:25,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205215955] [2022-11-25 18:18:25,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:25,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:18:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:18:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:25,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:18:25,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205215955] [2022-11-25 18:18:25,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205215955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:25,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:25,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:18:25,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231503147] [2022-11-25 18:18:25,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:25,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:18:25,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:18:25,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:18:25,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:18:25,252 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:25,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:25,316 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-11-25 18:18:25,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:18:25,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-25 18:18:25,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:25,317 INFO L225 Difference]: With dead ends: 35 [2022-11-25 18:18:25,318 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 18:18:25,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:18:25,319 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:25,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 103 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:18:25,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 18:18:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-11-25 18:18:25,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:18:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-11-25 18:18:25,327 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 16 [2022-11-25 18:18:25,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:25,327 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-11-25 18:18:25,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-11-25 18:18:25,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 18:18:25,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:25,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:25,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:18:25,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:25,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:25,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1985440463, now seen corresponding path program 1 times [2022-11-25 18:18:25,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:18:25,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206412278] [2022-11-25 18:18:25,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:25,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:18:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:18:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:25,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:18:25,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206412278] [2022-11-25 18:18:25,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206412278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:25,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:25,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:18:25,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564579026] [2022-11-25 18:18:25,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:25,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:18:25,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:18:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:18:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:18:25,480 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:25,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:25,543 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-11-25 18:18:25,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:18:25,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-25 18:18:25,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:25,545 INFO L225 Difference]: With dead ends: 35 [2022-11-25 18:18:25,545 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 18:18:25,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:18:25,547 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:25,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 103 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:25,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 18:18:25,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-11-25 18:18:25,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:18:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-11-25 18:18:25,554 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 17 [2022-11-25 18:18:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:25,555 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-11-25 18:18:25,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-11-25 18:18:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 18:18:25,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:25,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:25,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:18:25,557 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:25,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1646840168, now seen corresponding path program 1 times [2022-11-25 18:18:25,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:18:25,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090526304] [2022-11-25 18:18:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:25,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:18:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:25,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:18:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:25,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:18:25,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090526304] [2022-11-25 18:18:25,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090526304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:25,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:25,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:18:25,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318995426] [2022-11-25 18:18:25,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:25,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:18:25,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:18:25,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:18:25,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:18:25,664 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:25,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:25,698 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-11-25 18:18:25,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:18:25,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-25 18:18:25,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:25,699 INFO L225 Difference]: With dead ends: 35 [2022-11-25 18:18:25,700 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 18:18:25,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:18:25,701 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:25,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 103 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:25,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 18:18:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-11-25 18:18:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:18:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-11-25 18:18:25,707 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 18 [2022-11-25 18:18:25,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:25,708 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-11-25 18:18:25,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-11-25 18:18:25,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 18:18:25,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:25,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:25,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:18:25,710 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:25,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:25,710 INFO L85 PathProgramCache]: Analyzing trace with hash 840672665, now seen corresponding path program 1 times [2022-11-25 18:18:25,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:18:25,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441047521] [2022-11-25 18:18:25,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:25,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:18:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:18:25,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:18:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:18:25,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:18:25,754 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:18:25,755 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:18:25,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:18:25,761 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-25 18:18:25,765 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:18:25,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:18:25 BoogieIcfgContainer [2022-11-25 18:18:25,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:18:25,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:18:25,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:18:25,790 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:18:25,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:18:23" (3/4) ... [2022-11-25 18:18:25,794 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:18:25,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:18:25,795 INFO L158 Benchmark]: Toolchain (without parser) took 2736.09ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 63.5MB in the end (delta: 55.4MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2022-11-25 18:18:25,795 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory was 91.6MB in the beginning and 91.5MB in the end (delta: 83.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:18:25,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.56ms. Allocated memory is still 157.3MB. Free memory was 118.5MB in the beginning and 108.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:18:25,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.46ms. Allocated memory is still 157.3MB. Free memory was 108.1MB in the beginning and 106.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:18:25,797 INFO L158 Benchmark]: Boogie Preprocessor took 33.08ms. Allocated memory is still 157.3MB. Free memory was 106.7MB in the beginning and 105.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:18:25,797 INFO L158 Benchmark]: RCFGBuilder took 453.18ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 92.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 18:18:25,797 INFO L158 Benchmark]: TraceAbstraction took 1903.68ms. Allocated memory is still 157.3MB. Free memory was 92.1MB in the beginning and 63.5MB in the end (delta: 28.6MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2022-11-25 18:18:25,798 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 157.3MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:18:25,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory was 91.6MB in the beginning and 91.5MB in the end (delta: 83.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.56ms. Allocated memory is still 157.3MB. Free memory was 118.5MB in the beginning and 108.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.46ms. Allocated memory is still 157.3MB. Free memory was 108.1MB in the beginning and 106.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.08ms. Allocated memory is still 157.3MB. Free memory was 106.7MB in the beginning and 105.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.18ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 92.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1903.68ms. Allocated memory is still 157.3MB. Free memory was 92.1MB in the beginning and 63.5MB in the end (delta: 28.6MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 157.3MB. Free memory is still 63.5MB. 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: 61]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 56. Possible FailurePath: [L56] float x = 0.0f / 0.0f; [L57] float y = 0.0f / 0.0f; [L58] CALL, EXPR fmin_float(x, y) [L37] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578697] [L14] __uint32_t w; VAL [\old(x)=4286578697, x=4286578697] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578697, w=4286578689, x=4286578697] [L24-L25] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578697, w=4286578689, x=4286578697] [L27-L28] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578697, w=4286578689, x=4286578697] [L30] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L33] return 0; VAL [\old(x)=4286578697, \result=0, w=4286578689, x=4286578697] [L37] RET, EXPR __fpclassify_float(x) VAL [\old(x)=4286578697, \old(y)=4286578696, __fpclassify_float(x)=0, x=4286578697, y=4286578696] [L37] COND TRUE __fpclassify_float(x) == 0 [L38] return y; VAL [\old(x)=4286578697, \old(y)=4286578696, \result=4286578696, x=4286578697, y=4286578696] [L58] RET, EXPR fmin_float(x, y) [L58] float res = fmin_float(x, y); [L60] CALL, EXPR isnan_float(res) [L46] return x != x; VAL [\old(x)=4286578696, \result=0, x=4286578696] [L60] RET, EXPR isnan_float(res) [L60] COND TRUE !isnan_float(res) [L61] reach_error() VAL [res=4286578696, x=4286578697, y=4286578696] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 452 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 307 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 145 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, InterpolantAutomatonStates: 23, 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 [2022-11-25 18:18:25,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R --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 95e4857f2e80c4b2a09349ad506a32e395132bf666c8dc52d9ee1d4dade10d91 --- 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-38b53e6 [2022-11-25 18:18:28,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:18:28,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:18:28,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:18:28,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:18:28,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:18:28,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:18:28,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:18:28,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:18:28,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:18:28,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:18:28,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:18:28,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:18:28,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:18:28,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:18:28,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:18:28,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:18:28,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:18:28,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:18:28,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:18:28,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:18:28,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:18:28,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:18:28,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:18:28,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:18:28,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:18:28,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:18:28,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:18:28,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:18:28,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:18:28,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:18:28,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:18:28,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:18:28,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:18:28,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:18:28,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:18:28,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:18:28,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:18:28,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:18:28,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:18:28,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:18:28,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-25 18:18:28,375 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:18:28,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:18:28,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:18:28,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:18:28,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:18:28,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:18:28,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:18:28,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:18:28,380 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:18:28,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:18:28,382 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:18:28,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:18:28,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:18:28,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:18:28,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:18:28,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:18:28,383 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:18:28,383 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:18:28,383 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:18:28,384 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:18:28,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:18:28,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:18:28,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:18:28,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:18:28,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:18:28,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:18:28,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:18:28,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:18:28,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:18:28,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:18:28,386 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:18:28,386 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:18:28,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:18:28,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:18:28,387 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:18:28,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:18:28,387 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 18:18:28,387 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e4857f2e80c4b2a09349ad506a32e395132bf666c8dc52d9ee1d4dade10d91 [2022-11-25 18:18:28,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:18:28,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:18:28,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:18:28,830 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:18:28,832 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:18:28,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2022-11-25 18:18:31,992 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:18:32,297 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:18:32,298 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2022-11-25 18:18:32,305 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/data/083cd7301/baf882b27bac4c45898aba61d84d05b4/FLAG758660fa9 [2022-11-25 18:18:32,319 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/data/083cd7301/baf882b27bac4c45898aba61d84d05b4 [2022-11-25 18:18:32,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:18:32,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:18:32,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:18:32,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:18:32,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:18:32,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33dc032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32, skipping insertion in model container [2022-11-25 18:18:32,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:18:32,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:18:32,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/sv-benchmarks/c/float-newlib/float_req_bl_1230.c[1411,1424] [2022-11-25 18:18:32,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:18:32,573 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:18:32,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/sv-benchmarks/c/float-newlib/float_req_bl_1230.c[1411,1424] [2022-11-25 18:18:32,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:18:32,610 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:18:32,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32 WrapperNode [2022-11-25 18:18:32,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:18:32,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:18:32,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:18:32,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:18:32,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,673 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2022-11-25 18:18:32,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:18:32,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:18:32,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:18:32,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:18:32,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,720 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:18:32,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:18:32,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:18:32,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:18:32,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (1/1) ... [2022-11-25 18:18:32,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:18:32,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:18:32,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:18:32,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:18:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:18:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 18:18:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:18:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2022-11-25 18:18:32,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2022-11-25 18:18:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 18:18:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:18:32,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:18:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-25 18:18:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:18:32,969 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:18:32,971 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:18:33,295 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:18:33,301 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:18:33,307 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:18:33,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:18:33 BoogieIcfgContainer [2022-11-25 18:18:33,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:18:33,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:18:33,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:18:33,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:18:33,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:18:32" (1/3) ... [2022-11-25 18:18:33,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee2f480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:18:33, skipping insertion in model container [2022-11-25 18:18:33,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:32" (2/3) ... [2022-11-25 18:18:33,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee2f480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:18:33, skipping insertion in model container [2022-11-25 18:18:33,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:18:33" (3/3) ... [2022-11-25 18:18:33,336 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2022-11-25 18:18:33,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:18:33,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:18:33,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:18:33,417 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;@67caf399, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:18:33,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:18:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:18:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 18:18:33,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:33,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:33,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:33,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1452634366, now seen corresponding path program 1 times [2022-11-25 18:18:33,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:33,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728351500] [2022-11-25 18:18:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:33,456 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 [2022-11-25 18:18:33,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:33,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:33,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:33,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:18:33,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:33,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:33,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:33,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728351500] [2022-11-25 18:18:33,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728351500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:33,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:33,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:18:33,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860612334] [2022-11-25 18:18:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:33,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:18:33,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:33,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:18:33,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:18:33,699 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:33,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:33,737 INFO L93 Difference]: Finished difference Result 43 states and 62 transitions. [2022-11-25 18:18:33,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:18:33,744 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-25 18:18:33,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:33,753 INFO L225 Difference]: With dead ends: 43 [2022-11-25 18:18:33,754 INFO L226 Difference]: Without dead ends: 20 [2022-11-25 18:18:33,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:18:33,761 INFO L413 NwaCegarLoop]: 29 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, 29 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 [2022-11-25 18:18:33,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:33,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-25 18:18:33,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-25 18:18:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:18:33,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-25 18:18:33,817 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 13 [2022-11-25 18:18:33,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:33,817 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-25 18:18:33,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-11-25 18:18:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 18:18:33,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:33,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:33,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:34,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:34,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:34,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:34,044 INFO L85 PathProgramCache]: Analyzing trace with hash 62027172, now seen corresponding path program 1 times [2022-11-25 18:18:34,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:34,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132711688] [2022-11-25 18:18:34,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:34,045 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 [2022-11-25 18:18:34,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:34,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:34,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:34,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:18:34,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:34,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:34,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:34,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132711688] [2022-11-25 18:18:34,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132711688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:34,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:34,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:18:34,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565578655] [2022-11-25 18:18:34,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:34,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:18:34,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:34,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:18:34,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:34,266 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:34,320 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-11-25 18:18:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:18:34,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 18:18:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:34,323 INFO L225 Difference]: With dead ends: 28 [2022-11-25 18:18:34,324 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 18:18:34,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:34,326 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:34,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 18:18:34,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-25 18:18:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:18:34,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-25 18:18:34,335 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 14 [2022-11-25 18:18:34,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:34,335 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-25 18:18:34,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:34,336 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-25 18:18:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 18:18:34,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:34,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:34,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:34,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:34,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:34,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:34,552 INFO L85 PathProgramCache]: Analyzing trace with hash -371177189, now seen corresponding path program 1 times [2022-11-25 18:18:34,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:34,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458753464] [2022-11-25 18:18:34,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:34,553 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 [2022-11-25 18:18:34,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:34,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:34,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:34,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:18:34,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:34,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:34,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:34,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458753464] [2022-11-25 18:18:34,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458753464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:34,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:34,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:18:34,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220536536] [2022-11-25 18:18:34,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:34,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:18:34,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:34,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:18:34,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:34,690 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:34,741 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-11-25 18:18:34,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:18:34,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-25 18:18:34,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:34,743 INFO L225 Difference]: With dead ends: 31 [2022-11-25 18:18:34,743 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 18:18:34,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:34,745 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:34,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:34,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 18:18:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2022-11-25 18:18:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:18:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-25 18:18:34,752 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 15 [2022-11-25 18:18:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:34,752 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-25 18:18:34,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:34,753 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-25 18:18:34,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 18:18:34,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:34,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:34,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:34,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:34,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:34,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1760663552, now seen corresponding path program 1 times [2022-11-25 18:18:34,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:34,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151378879] [2022-11-25 18:18:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:34,973 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 [2022-11-25 18:18:34,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:34,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:34,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:35,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:18:35,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:35,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:35,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:35,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:35,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151378879] [2022-11-25 18:18:35,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151378879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:35,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:35,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:18:35,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638913127] [2022-11-25 18:18:35,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:35,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:18:35,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:35,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:18:35,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:35,078 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:35,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:35,124 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-11-25 18:18:35,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:18:35,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-25 18:18:35,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:35,126 INFO L225 Difference]: With dead ends: 31 [2022-11-25 18:18:35,126 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 18:18:35,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:35,128 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:35,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 18:18:35,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2022-11-25 18:18:35,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:18:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-25 18:18:35,134 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 16 [2022-11-25 18:18:35,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:35,134 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-25 18:18:35,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:35,135 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-25 18:18:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 18:18:35,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:35,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:35,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:35,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:35,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:35,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:35,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1804523831, now seen corresponding path program 1 times [2022-11-25 18:18:35,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:35,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432209055] [2022-11-25 18:18:35,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:35,355 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 [2022-11-25 18:18:35,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:35,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:35,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:35,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:18:35,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:35,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:35,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:35,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432209055] [2022-11-25 18:18:35,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432209055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:35,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:35,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:18:35,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481616807] [2022-11-25 18:18:35,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:35,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:18:35,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:35,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:18:35,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:35,490 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:35,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:35,571 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-11-25 18:18:35,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:18:35,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-25 18:18:35,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:35,573 INFO L225 Difference]: With dead ends: 31 [2022-11-25 18:18:35,573 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 18:18:35,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:35,575 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:35,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:18:35,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 18:18:35,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2022-11-25 18:18:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:18:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-25 18:18:35,581 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 17 [2022-11-25 18:18:35,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:35,582 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-25 18:18:35,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:35,582 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-25 18:18:35,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 18:18:35,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:35,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:35,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:35,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:35,790 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:35,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:35,791 INFO L85 PathProgramCache]: Analyzing trace with hash -747633130, now seen corresponding path program 1 times [2022-11-25 18:18:35,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:35,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473332535] [2022-11-25 18:18:35,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:35,792 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 [2022-11-25 18:18:35,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:35,793 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:35,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:35,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 18:18:35,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:36,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:36,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:36,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:36,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473332535] [2022-11-25 18:18:36,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473332535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:36,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:36,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:18:36,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108710426] [2022-11-25 18:18:36,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:36,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:18:36,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:36,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:18:36,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:18:36,056 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:36,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:36,332 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-11-25 18:18:36,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:18:36,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-25 18:18:36,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:36,334 INFO L225 Difference]: With dead ends: 28 [2022-11-25 18:18:36,334 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 18:18:36,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:18:36,335 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 13 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:36,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 96 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:18:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 18:18:36,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2022-11-25 18:18:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:18:36,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2022-11-25 18:18:36,342 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 17 [2022-11-25 18:18:36,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:36,343 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-11-25 18:18:36,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:18:36,343 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-11-25 18:18:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 18:18:36,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:36,344 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:36,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:36,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:36,561 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:36,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1982229734, now seen corresponding path program 1 times [2022-11-25 18:18:36,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:36,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9057990] [2022-11-25 18:18:36,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:36,562 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 [2022-11-25 18:18:36,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:36,565 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:36,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 18:18:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:36,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:18:36,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:36,680 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:18:36,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:36,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:36,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9057990] [2022-11-25 18:18:36,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9057990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:36,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:36,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:18:36,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271642728] [2022-11-25 18:18:36,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:36,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:18:36,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:36,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:18:36,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:36,684 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:36,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:36,728 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-11-25 18:18:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:18:36,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-25 18:18:36,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:36,731 INFO L225 Difference]: With dead ends: 28 [2022-11-25 18:18:36,731 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 18:18:36,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:36,732 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:36,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:36,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 18:18:36,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 18:18:36,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 18:18:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-25 18:18:36,739 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 22 [2022-11-25 18:18:36,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:36,740 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-25 18:18:36,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-25 18:18:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 18:18:36,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:36,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:36,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-25 18:18:36,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:36,957 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:36,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:36,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1436544545, now seen corresponding path program 1 times [2022-11-25 18:18:36,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:36,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119757567] [2022-11-25 18:18:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:36,959 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 [2022-11-25 18:18:36,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:36,960 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:36,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-25 18:18:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:37,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:18:37,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:18:37,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:37,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:37,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119757567] [2022-11-25 18:18:37,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119757567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:37,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:37,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:18:37,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269399008] [2022-11-25 18:18:37,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:37,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:18:37,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:37,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:18:37,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:37,136 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:37,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:37,195 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-25 18:18:37,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:18:37,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-25 18:18:37,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:37,197 INFO L225 Difference]: With dead ends: 30 [2022-11-25 18:18:37,197 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 18:18:37,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:37,199 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:37,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:18:37,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 18:18:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-11-25 18:18:37,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 18:18:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-25 18:18:37,205 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 23 [2022-11-25 18:18:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:37,205 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-25 18:18:37,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-25 18:18:37,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 18:18:37,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:37,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:37,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-25 18:18:37,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:37,427 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:37,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:37,427 INFO L85 PathProgramCache]: Analyzing trace with hash 81479618, now seen corresponding path program 1 times [2022-11-25 18:18:37,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:37,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224793263] [2022-11-25 18:18:37,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:37,428 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 [2022-11-25 18:18:37,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:37,430 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:37,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 18:18:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:37,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:18:37,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:18:37,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:37,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:37,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224793263] [2022-11-25 18:18:37,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224793263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:37,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:37,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:18:37,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268055016] [2022-11-25 18:18:37,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:37,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:18:37,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:37,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:18:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:37,542 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:37,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:37,578 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-25 18:18:37,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:18:37,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-11-25 18:18:37,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:37,580 INFO L225 Difference]: With dead ends: 30 [2022-11-25 18:18:37,580 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 18:18:37,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:37,581 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:37,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:37,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 18:18:37,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-11-25 18:18:37,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 18:18:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-25 18:18:37,586 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 24 [2022-11-25 18:18:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:37,587 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-25 18:18:37,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-25 18:18:37,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 18:18:37,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:37,588 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:37,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 18:18:37,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:37,801 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:37,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:37,801 INFO L85 PathProgramCache]: Analyzing trace with hash -594553411, now seen corresponding path program 1 times [2022-11-25 18:18:37,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:37,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660063857] [2022-11-25 18:18:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:37,802 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 [2022-11-25 18:18:37,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:37,803 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:37,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-25 18:18:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:37,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:18:37,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:18:37,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:37,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:37,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660063857] [2022-11-25 18:18:37,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660063857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:37,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:37,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:18:37,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659670433] [2022-11-25 18:18:37,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:37,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:18:37,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:37,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:18:37,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:37,942 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:37,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:37,981 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-25 18:18:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:18:37,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-25 18:18:37,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:37,982 INFO L225 Difference]: With dead ends: 30 [2022-11-25 18:18:37,983 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 18:18:37,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:18:37,984 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:37,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:18:37,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 18:18:37,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-11-25 18:18:37,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 18:18:37,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-25 18:18:37,989 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 25 [2022-11-25 18:18:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:37,990 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-25 18:18:37,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-25 18:18:37,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 18:18:37,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:37,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:38,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-25 18:18:38,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:38,205 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:18:38,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:38,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1148256924, now seen corresponding path program 1 times [2022-11-25 18:18:38,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:18:38,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014809700] [2022-11-25 18:18:38,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:38,206 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 [2022-11-25 18:18:38,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:18:38,207 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:18:38,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-25 18:18:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:38,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 18:18:38,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:18:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 18:18:38,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:18:38,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:18:38,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014809700] [2022-11-25 18:18:38,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014809700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:38,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:38,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:18:38,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179461702] [2022-11-25 18:18:38,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:38,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:18:38,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:18:38,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:18:38,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:18:38,480 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:18:38,656 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2022-11-25 18:18:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:18:38,657 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-25 18:18:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:18:38,657 INFO L225 Difference]: With dead ends: 22 [2022-11-25 18:18:38,657 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 18:18:38,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:18:38,658 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:18:38,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 85 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:18:38,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 18:18:38,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 18:18:38,659 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) [2022-11-25 18:18:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 18:18:38,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-11-25 18:18:38,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:38,660 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:18:38,660 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:18:38,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:18:38,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 18:18:38,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:18:38,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-25 18:18:38,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:18:38,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 18:18:39,088 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 18:18:39,088 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 63) no Hoare annotation was computed. [2022-11-25 18:18:39,088 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmin_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmin_float_~y#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2022-11-25 18:18:39,089 INFO L895 garLoopResultBuilder]: At program point L42(lines 36 43) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmin_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmin_float_~y#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2022-11-25 18:18:39,089 INFO L902 garLoopResultBuilder]: At program point L65(lines 48 66) the Hoare annotation is: true [2022-11-25 18:18:39,089 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 18:18:39,089 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 18:18:39,089 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-11-25 18:18:39,089 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 18:18:39,089 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2022-11-25 18:18:39,089 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmin_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmin_float_~y#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2022-11-25 18:18:39,090 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2022-11-25 18:18:39,090 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmin_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmin_float_~y#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2022-11-25 18:18:39,090 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 37 38) no Hoare annotation was computed. [2022-11-25 18:18:39,090 INFO L899 garLoopResultBuilder]: For program point __fpclassify_floatFINAL(lines 13 34) no Hoare annotation was computed. [2022-11-25 18:18:39,090 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 33) no Hoare annotation was computed. [2022-11-25 18:18:39,090 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 33) no Hoare annotation was computed. [2022-11-25 18:18:39,090 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 33) no Hoare annotation was computed. [2022-11-25 18:18:39,091 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2022-11-25 18:18:39,091 INFO L902 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2022-11-25 18:18:39,091 INFO L899 garLoopResultBuilder]: For program point L16-3(lines 13 34) no Hoare annotation was computed. [2022-11-25 18:18:39,091 INFO L902 garLoopResultBuilder]: At program point __fpclassify_floatENTRY(lines 13 34) the Hoare annotation is: true [2022-11-25 18:18:39,091 INFO L899 garLoopResultBuilder]: For program point __fpclassify_floatEXIT(lines 13 34) no Hoare annotation was computed. [2022-11-25 18:18:39,094 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:39,096 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:18:39,104 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,105 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,110 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,110 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,111 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,111 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,112 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,112 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:18:39 BoogieIcfgContainer [2022-11-25 18:18:39,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:18:39,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:18:39,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:18:39,114 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:18:39,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:18:33" (3/4) ... [2022-11-25 18:18:39,117 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:18:39,124 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2022-11-25 18:18:39,128 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-25 18:18:39,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-25 18:18:39,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:18:39,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:18:39,156 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2022-11-25 18:18:39,157 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result [2022-11-25 18:18:39,165 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:18:39,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:18:39,166 INFO L158 Benchmark]: Toolchain (without parser) took 6841.93ms. Allocated memory was 69.2MB in the beginning and 111.1MB in the end (delta: 41.9MB). Free memory was 47.8MB in the beginning and 42.1MB in the end (delta: 5.6MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2022-11-25 18:18:39,166 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 52.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:18:39,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.25ms. Allocated memory is still 69.2MB. Free memory was 47.6MB in the beginning and 36.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:18:39,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.95ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 34.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:18:39,167 INFO L158 Benchmark]: Boogie Preprocessor took 60.83ms. Allocated memory is still 69.2MB. Free memory was 34.6MB in the beginning and 32.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:18:39,182 INFO L158 Benchmark]: RCFGBuilder took 590.04ms. Allocated memory was 69.2MB in the beginning and 111.1MB in the end (delta: 41.9MB). Free memory was 32.9MB in the beginning and 85.1MB in the end (delta: -52.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-11-25 18:18:39,183 INFO L158 Benchmark]: TraceAbstraction took 5783.98ms. Allocated memory is still 111.1MB. Free memory was 84.6MB in the beginning and 44.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-11-25 18:18:39,183 INFO L158 Benchmark]: Witness Printer took 51.76ms. Allocated memory is still 111.1MB. Free memory was 44.8MB in the beginning and 42.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:18:39,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 52.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.25ms. Allocated memory is still 69.2MB. Free memory was 47.6MB in the beginning and 36.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.95ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 34.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.83ms. Allocated memory is still 69.2MB. Free memory was 34.6MB in the beginning and 32.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.04ms. Allocated memory was 69.2MB in the beginning and 111.1MB in the end (delta: 41.9MB). Free memory was 32.9MB in the beginning and 85.1MB in the end (delta: -52.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5783.98ms. Allocated memory is still 111.1MB. Free memory was 84.6MB in the beginning and 44.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Witness Printer took 51.76ms. Allocated memory is still 111.1MB. Free memory was 44.8MB in the beginning and 42.1MB in the end (delta: 2.7MB). 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - 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: 61]: 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 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 768 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 484 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 284 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 46, 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, 11 MinimizatonAttempts, 18 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 66 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 49 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 200 ConstructedInterpolants, 8 QuantifiedInterpolants, 304 SizeOfPredicates, 18 NumberOfNonLiveVariables, 761 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 30/30 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant [2022-11-25 18:18:39,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result - InvariantResult [Line: 36]: Loop Invariant [2022-11-25 18:18:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-25 18:18:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 18:18:39,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a600709c-092c-45bb-94e5-71aedf3e7fb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE