./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ --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 d49870e69541330ed9c43cbd05e2f521c52af3f7516e76ef84930ba6589bf389 --- 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-dbf71c6-m [2022-10-17 11:05:16,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:05:16,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:05:16,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:05:16,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:05:16,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:05:16,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:05:16,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:05:16,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:05:16,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:05:16,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:05:16,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:05:16,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:05:16,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:05:16,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:05:16,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:05:16,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:05:16,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:05:16,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:05:16,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:05:16,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:05:16,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:05:16,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:05:16,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:05:16,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:05:16,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:05:16,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:05:16,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:05:16,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:05:16,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:05:16,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:05:16,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:05:16,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:05:16,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:05:16,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:05:16,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:05:16,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:05:16,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:05:16,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:05:16,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:05:16,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:05:16,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 11:05:16,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:05:16,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:05:16,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:05:16,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:05:16,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:05:16,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:05:16,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:05:16,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:05:16,981 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:05:16,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:05:16,981 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:05:16,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:05:16,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:05:16,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:05:16,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:05:16,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:05:16,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:05:16,983 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:05:16,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:05:16,983 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:05:16,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:05:16,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:05:16,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:05:16,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:05:16,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:16,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:05:16,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:05:16,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:05:16,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:05:16,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:05:16,985 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:05:16,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:05:16,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:05:16,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d49870e69541330ed9c43cbd05e2f521c52af3f7516e76ef84930ba6589bf389 [2022-10-17 11:05:17,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:05:17,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:05:17,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:05:17,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:05:17,413 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:05:17,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2022-10-17 11:05:17,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data/6ca3ad23b/b4af5fd2107a4faa8d22b1714b33181b/FLAGd97e75518 [2022-10-17 11:05:18,159 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:05:18,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2022-10-17 11:05:18,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data/6ca3ad23b/b4af5fd2107a4faa8d22b1714b33181b/FLAGd97e75518 [2022-10-17 11:05:18,488 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data/6ca3ad23b/b4af5fd2107a4faa8d22b1714b33181b [2022-10-17 11:05:18,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:05:18,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:05:18,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:18,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:05:18,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:05:18,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:18,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371f8e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18, skipping insertion in model container [2022-10-17 11:05:18,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:18,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:05:18,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:05:18,801 WARN L230 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_97d2d8ea-bfa4-4c1a-add7-944ab1884220/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c[6207,6220] [2022-10-17 11:05:18,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:18,813 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:05:18,929 WARN L230 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_97d2d8ea-bfa4-4c1a-add7-944ab1884220/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c[6207,6220] [2022-10-17 11:05:18,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:18,946 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:05:18,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18 WrapperNode [2022-10-17 11:05:18,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:18,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:05:18,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:05:18,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:05:18,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:18,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,039 INFO L138 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 261 [2022-10-17 11:05:19,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:05:19,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:05:19,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:05:19,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:05:19,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,126 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:05:19,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:05:19,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:05:19,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:05:19,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (1/1) ... [2022-10-17 11:05:19,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:19,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:05:19,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:05:19,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:05:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:05:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:05:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:05:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-17 11:05:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:05:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-10-17 11:05:19,246 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-10-17 11:05:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-17 11:05:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-10-17 11:05:19,246 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-10-17 11:05:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:05:19,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:05:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:05:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-10-17 11:05:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:05:19,356 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:05:19,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:05:20,170 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:05:20,178 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:05:20,185 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-10-17 11:05:20,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:20 BoogieIcfgContainer [2022-10-17 11:05:20,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:05:20,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:05:20,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:05:20,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:05:20,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:05:18" (1/3) ... [2022-10-17 11:05:20,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1bba3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:05:20, skipping insertion in model container [2022-10-17 11:05:20,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:18" (2/3) ... [2022-10-17 11:05:20,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1bba3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:05:20, skipping insertion in model container [2022-10-17 11:05:20,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:20" (3/3) ... [2022-10-17 11:05:20,202 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686b.c [2022-10-17 11:05:20,222 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:05:20,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:05:20,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:05:20,332 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;@40636efb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:05:20,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:05:20,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 97 states have (on average 1.7422680412371134) internal successors, (169), 98 states have internal predecessors, (169), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 11:05:20,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 11:05:20,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:20,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:20,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:20,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:20,354 INFO L85 PathProgramCache]: Analyzing trace with hash -8232233, now seen corresponding path program 1 times [2022-10-17 11:05:20,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:05:20,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919652821] [2022-10-17 11:05:20,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:20,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:05:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:20,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:05:20,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:05:20,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919652821] [2022-10-17 11:05:20,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919652821] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:20,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:05:20,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:05:20,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497379660] [2022-10-17 11:05:20,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:20,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 11:05:20,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:05:20,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 11:05:20,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:05:20,684 INFO L87 Difference]: Start difference. First operand has 105 states, 97 states have (on average 1.7422680412371134) internal successors, (169), 98 states have internal predecessors, (169), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-10-17 11:05:20,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:05:20,746 INFO L93 Difference]: Finished difference Result 208 states and 356 transitions. [2022-10-17 11:05:20,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 11:05:20,749 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-17 11:05:20,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:05:20,758 INFO L225 Difference]: With dead ends: 208 [2022-10-17 11:05:20,758 INFO L226 Difference]: Without dead ends: 102 [2022-10-17 11:05:20,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:05:20,767 INFO L413 NwaCegarLoop]: 154 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, 154 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 [2022-10-17 11:05:20,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:05:20,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-17 11:05:20,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-10-17 11:05:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 95 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 11:05:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 151 transitions. [2022-10-17 11:05:20,825 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 151 transitions. Word has length 10 [2022-10-17 11:05:20,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:05:20,826 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 151 transitions. [2022-10-17 11:05:20,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-10-17 11:05:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2022-10-17 11:05:20,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 11:05:20,827 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:20,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:20,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:05:20,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:20,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:20,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1919635121, now seen corresponding path program 1 times [2022-10-17 11:05:20,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:05:20,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188453351] [2022-10-17 11:05:20,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:20,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:05:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:05:21,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:05:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:05:21,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:05:21,244 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 11:05:21,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 11:05:21,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 11:05:21,254 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 11:05:21,258 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 11:05:21,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 11:05:21 BoogieIcfgContainer [2022-10-17 11:05:21,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 11:05:21,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 11:05:21,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 11:05:21,340 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 11:05:21,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:20" (3/4) ... [2022-10-17 11:05:21,344 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 11:05:21,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 11:05:21,345 INFO L158 Benchmark]: Toolchain (without parser) took 2851.63ms. Allocated memory is still 104.9MB. Free memory was 64.2MB in the beginning and 67.6MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:05:21,345 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:05:21,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.71ms. Allocated memory is still 104.9MB. Free memory was 64.0MB in the beginning and 75.0MB in the end (delta: -11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 11:05:21,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.89ms. Allocated memory is still 104.9MB. Free memory was 74.6MB in the beginning and 71.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 11:05:21,348 INFO L158 Benchmark]: Boogie Preprocessor took 98.82ms. Allocated memory is still 104.9MB. Free memory was 71.2MB in the beginning and 67.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:05:21,349 INFO L158 Benchmark]: RCFGBuilder took 1045.99ms. Allocated memory is still 104.9MB. Free memory was 67.9MB in the beginning and 75.4MB in the end (delta: -7.5MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2022-10-17 11:05:21,349 INFO L158 Benchmark]: TraceAbstraction took 1148.15ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 67.6MB in the end (delta: 7.3MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2022-10-17 11:05:21,350 INFO L158 Benchmark]: Witness Printer took 5.15ms. Allocated memory is still 104.9MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:05:21,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.71ms. Allocated memory is still 104.9MB. Free memory was 64.0MB in the beginning and 75.0MB in the end (delta: -11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.89ms. Allocated memory is still 104.9MB. Free memory was 74.6MB in the beginning and 71.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.82ms. Allocated memory is still 104.9MB. Free memory was 71.2MB in the beginning and 67.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1045.99ms. Allocated memory is still 104.9MB. Free memory was 67.9MB in the beginning and 75.4MB in the end (delta: -7.5MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1148.15ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 67.6MB in the end (delta: 7.3MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. * Witness Printer took 5.15ms. Allocated memory is still 104.9MB. Free memory is still 67.6MB. 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: 258]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L252] double x = 1.0 / 0.0; [L253] double y = -1.0 / 0.0; [L255] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=0, lx=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, ix=0, iy=0, lx=1, ly=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, ix=0, iy=0, lx=1, ly=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L255] RET, EXPR __ieee754_atan2(y, x) [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != -pi_o_4 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L258] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 154 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-10-17 11:05:21,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ --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 d49870e69541330ed9c43cbd05e2f521c52af3f7516e76ef84930ba6589bf389 --- 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-dbf71c6-m [2022-10-17 11:05:24,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:05:24,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:05:24,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:05:24,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:05:24,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:05:24,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:05:24,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:05:24,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:05:24,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:05:24,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:05:24,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:05:24,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:05:24,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:05:24,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:05:24,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:05:24,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:05:24,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:05:24,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:05:24,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:05:24,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:05:24,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:05:24,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:05:24,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:05:24,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:05:24,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:05:24,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:05:24,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:05:24,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:05:24,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:05:24,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:05:24,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:05:24,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:05:24,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:05:24,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:05:24,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:05:24,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:05:24,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:05:24,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:05:24,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:05:24,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:05:24,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-10-17 11:05:24,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:05:24,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:05:24,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:05:24,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:05:24,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:05:24,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:05:24,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:05:24,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:05:24,335 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:05:24,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:05:24,335 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:05:24,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:05:24,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:05:24,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:05:24,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:05:24,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:05:24,337 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 11:05:24,337 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 11:05:24,337 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 11:05:24,337 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:05:24,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:05:24,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:05:24,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:05:24,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:05:24,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:05:24,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:05:24,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:24,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:05:24,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:05:24,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:05:24,342 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 11:05:24,343 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 11:05:24,343 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:05:24,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:05:24,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:05:24,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 11:05:24,345 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d49870e69541330ed9c43cbd05e2f521c52af3f7516e76ef84930ba6589bf389 [2022-10-17 11:05:24,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:05:24,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:05:24,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:05:24,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:05:24,813 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:05:24,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2022-10-17 11:05:24,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data/dc5956704/837e32d543ff4687a790080d884bd7f8/FLAG71ffaf976 [2022-10-17 11:05:25,568 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:05:25,569 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2022-10-17 11:05:25,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data/dc5956704/837e32d543ff4687a790080d884bd7f8/FLAG71ffaf976 [2022-10-17 11:05:25,898 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/data/dc5956704/837e32d543ff4687a790080d884bd7f8 [2022-10-17 11:05:25,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:05:25,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:05:25,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:25,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:05:25,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:05:25,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:25" (1/1) ... [2022-10-17 11:05:25,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdf1456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:25, skipping insertion in model container [2022-10-17 11:05:25,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:25" (1/1) ... [2022-10-17 11:05:25,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:05:25,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:05:26,332 WARN L230 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_97d2d8ea-bfa4-4c1a-add7-944ab1884220/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c[6207,6220] [2022-10-17 11:05:26,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:26,370 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:05:26,454 WARN L230 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_97d2d8ea-bfa4-4c1a-add7-944ab1884220/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c[6207,6220] [2022-10-17 11:05:26,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:26,505 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:05:26,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26 WrapperNode [2022-10-17 11:05:26,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:26,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:05:26,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:05:26,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:05:26,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,564 INFO L138 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 226 [2022-10-17 11:05:26,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:05:26,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:05:26,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:05:26,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:05:26,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,611 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:05:26,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:05:26,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:05:26,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:05:26,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (1/1) ... [2022-10-17 11:05:26,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:26,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:05:26,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:05:26,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:05:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:05:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-10-17 11:05:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-10-17 11:05:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 11:05:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:05:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-10-17 11:05:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-10-17 11:05:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-10-17 11:05:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-10-17 11:05:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-10-17 11:05:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 11:05:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:05:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:05:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 11:05:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:05:26,855 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:05:26,857 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:05:47,484 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:05:47,493 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:05:47,494 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-10-17 11:05:47,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:47 BoogieIcfgContainer [2022-10-17 11:05:47,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:05:47,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:05:47,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:05:47,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:05:47,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:05:25" (1/3) ... [2022-10-17 11:05:47,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfe544b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:05:47, skipping insertion in model container [2022-10-17 11:05:47,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:26" (2/3) ... [2022-10-17 11:05:47,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfe544b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:05:47, skipping insertion in model container [2022-10-17 11:05:47,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:47" (3/3) ... [2022-10-17 11:05:47,508 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686b.c [2022-10-17 11:05:47,532 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:05:47,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:05:47,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:05:47,605 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;@19219253, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:05:47,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:05:47,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6666666666666667) internal successors, (140), 85 states have internal predecessors, (140), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 11:05:47,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 11:05:47,619 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:47,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:47,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:47,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:47,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1713470270, now seen corresponding path program 1 times [2022-10-17 11:05:47,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:05:47,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885445845] [2022-10-17 11:05:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:47,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:05:47,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:05:47,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:05:47,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 11:05:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:48,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 11:05:48,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:05:48,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:05:48,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:05:48,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885445845] [2022-10-17 11:05:48,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885445845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:48,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:05:48,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:05:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325711423] [2022-10-17 11:05:48,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:48,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 11:05:48,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:05:48,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 11:05:48,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:05:48,255 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6666666666666667) internal successors, (140), 85 states have internal predecessors, (140), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-10-17 11:05:48,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:05:48,292 INFO L93 Difference]: Finished difference Result 182 states and 298 transitions. [2022-10-17 11:05:48,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 11:05:48,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-17 11:05:48,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:05:48,302 INFO L225 Difference]: With dead ends: 182 [2022-10-17 11:05:48,302 INFO L226 Difference]: Without dead ends: 89 [2022-10-17 11:05:48,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:05:48,309 INFO L413 NwaCegarLoop]: 131 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, 131 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 [2022-10-17 11:05:48,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:05:48,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-17 11:05:48,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-10-17 11:05:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 82 states have internal predecessors, (120), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 11:05:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 128 transitions. [2022-10-17 11:05:48,384 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 128 transitions. Word has length 10 [2022-10-17 11:05:48,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:05:48,385 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 128 transitions. [2022-10-17 11:05:48,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-10-17 11:05:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 128 transitions. [2022-10-17 11:05:48,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 11:05:48,389 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:48,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:48,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 11:05:48,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:05:48,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:48,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:48,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1701355047, now seen corresponding path program 1 times [2022-10-17 11:05:48,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:05:48,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611188034] [2022-10-17 11:05:48,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:48,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:05:48,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:05:48,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:05:48,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 11:05:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:49,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-17 11:05:49,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:49,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 11:05:49,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-10-17 11:05:51,326 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 11:05:51,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 17 [2022-10-17 11:05:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:05:53,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:05:53,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:05:53,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611188034] [2022-10-17 11:05:53,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611188034] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:53,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:05:53,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 11:05:53,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945917857] [2022-10-17 11:05:53,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:53,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 11:05:53,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:05:53,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 11:05:53,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:05:53,042 INFO L87 Difference]: Start difference. First operand 89 states and 128 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:05:53,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:05:53,075 INFO L93 Difference]: Finished difference Result 93 states and 131 transitions. [2022-10-17 11:05:53,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:05:53,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-17 11:05:53,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:05:53,077 INFO L225 Difference]: With dead ends: 93 [2022-10-17 11:05:53,081 INFO L226 Difference]: Without dead ends: 89 [2022-10-17 11:05:53,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:05:53,099 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:05:53,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 656 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 78 Unchecked, 0.0s Time] [2022-10-17 11:05:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-17 11:05:53,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-10-17 11:05:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 82 states have (on average 1.451219512195122) internal successors, (119), 82 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 11:05:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2022-10-17 11:05:53,111 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 12 [2022-10-17 11:05:53,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:05:53,112 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2022-10-17 11:05:53,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:05:53,112 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2022-10-17 11:05:53,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 11:05:53,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:53,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:53,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 11:05:53,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:05:53,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:53,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:53,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1174160583, now seen corresponding path program 1 times [2022-10-17 11:05:53,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:05:53,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583041279] [2022-10-17 11:05:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:53,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:05:53,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:05:53,340 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:05:53,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 11:05:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 11:05:53,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:05:55,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:05:55,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:05:55,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583041279] [2022-10-17 11:05:55,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583041279] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:55,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:05:55,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:05:55,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289554244] [2022-10-17 11:05:55,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:55,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:05:55,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:05:55,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:05:55,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:05:55,248 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:05:55,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:05:55,262 INFO L93 Difference]: Finished difference Result 97 states and 133 transitions. [2022-10-17 11:05:55,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:05:55,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-17 11:05:55,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:05:55,265 INFO L225 Difference]: With dead ends: 97 [2022-10-17 11:05:55,265 INFO L226 Difference]: Without dead ends: 91 [2022-10-17 11:05:55,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:05:55,267 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 16 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:05:55,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 445 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 14 Unchecked, 0.0s Time] [2022-10-17 11:05:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-17 11:05:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2022-10-17 11:05:55,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.4375) internal successors, (115), 80 states have internal predecessors, (115), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 11:05:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 123 transitions. [2022-10-17 11:05:55,308 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 123 transitions. Word has length 17 [2022-10-17 11:05:55,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:05:55,309 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 123 transitions. [2022-10-17 11:05:55,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:05:55,309 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 123 transitions. [2022-10-17 11:05:55,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 11:05:55,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:55,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:55,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-10-17 11:05:55,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:05:55,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:55,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:55,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1166643321, now seen corresponding path program 1 times [2022-10-17 11:05:55,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:05:55,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994261285] [2022-10-17 11:05:55,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:55,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:05:55,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:05:55,540 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:05:55,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d2d8ea-bfa4-4c1a-add7-944ab1884220/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process