./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70dcbfd71e657ebb73c2a6863351c66fa81e26e34ca397217ae05e2d3c176a8d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:30:52,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:30:52,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:30:52,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:30:52,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:30:52,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:30:52,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:30:52,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:30:52,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:30:52,948 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:30:52,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:30:52,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:30:52,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:30:52,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:30:52,954 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:30:52,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:30:52,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:30:52,960 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:30:52,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:30:52,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:30:52,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:30:52,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:30:52,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:30:52,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:30:52,963 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:30:52,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:30:52,963 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:30:52,964 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:30:52,964 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:30:52,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:30:52,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:30:52,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:52,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:30:52,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:30:52,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:30:52,967 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:30:52,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:30:52,967 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:30:52,967 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:30:52,968 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:30:52,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:30:52,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:30:52,968 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70dcbfd71e657ebb73c2a6863351c66fa81e26e34ca397217ae05e2d3c176a8d [2023-11-23 22:30:53,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:30:53,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:30:53,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:30:53,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:30:53,275 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:30:53,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-11-23 22:30:56,446 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:30:56,668 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:30:56,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-11-23 22:30:56,677 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/data/60ca23ff1/b5431bf72a18432d91ffdbf753d6ee4a/FLAGed7dcaba1 [2023-11-23 22:30:56,692 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/data/60ca23ff1/b5431bf72a18432d91ffdbf753d6ee4a [2023-11-23 22:30:56,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:30:56,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:30:56,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:56,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:30:56,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:30:56,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:56" (1/1) ... [2023-11-23 22:30:56,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273cf65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:56, skipping insertion in model container [2023-11-23 22:30:56,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:56" (1/1) ... [2023-11-23 22:30:56,726 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:30:56,943 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-11-23 22:30:56,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:56,964 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:30:57,010 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-11-23 22:30:57,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:57,031 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:30:57,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57 WrapperNode [2023-11-23 22:30:57,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:57,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:57,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:30:57,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:30:57,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,109 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 107 [2023-11-23 22:30:57,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:57,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:30:57,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:30:57,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:30:57,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,131 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,157 INFO L189 HeapSplitter]: Split 7 memory accesses to 3 slices as follows [2, 2, 3] [2023-11-23 22:30:57,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:30:57,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:30:57,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:30:57,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:30:57,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:57,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:57,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:57,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:30:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:30:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:30:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:30:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:30:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:30:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-23 22:30:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-23 22:30:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-23 22:30:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:30:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:30:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:30:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:30:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:30:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:30:57,360 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:30:57,362 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:30:57,605 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:30:57,658 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:30:57,658 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:30:57,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:57 BoogieIcfgContainer [2023-11-23 22:30:57,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:30:57,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:30:57,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:30:57,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:30:57,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:30:56" (1/3) ... [2023-11-23 22:30:57,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4baff346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:30:57, skipping insertion in model container [2023-11-23 22:30:57,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (2/3) ... [2023-11-23 22:30:57,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4baff346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:30:57, skipping insertion in model container [2023-11-23 22:30:57,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:57" (3/3) ... [2023-11-23 22:30:57,669 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2023-11-23 22:30:57,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:30:57,690 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:30:57,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:30:57,748 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@310703a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:30:57,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:30:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 22 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:57,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 22:30:57,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:57,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:57,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:30:57,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:57,766 INFO L85 PathProgramCache]: Analyzing trace with hash -510031057, now seen corresponding path program 1 times [2023-11-23 22:30:57,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:57,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397323509] [2023-11-23 22:30:57,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:57,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:57,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:57,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397323509] [2023-11-23 22:30:57,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397323509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:57,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:57,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:30:57,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574524891] [2023-11-23 22:30:57,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:57,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:30:57,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:57,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:30:57,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:30:57,980 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 22 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:58,025 INFO L93 Difference]: Finished difference Result 45 states and 69 transitions. [2023-11-23 22:30:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:30:58,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2023-11-23 22:30:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:58,036 INFO L225 Difference]: With dead ends: 45 [2023-11-23 22:30:58,037 INFO L226 Difference]: Without dead ends: 20 [2023-11-23 22:30:58,040 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 [2023-11-23 22:30:58,046 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:58,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:30:58,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-23 22:30:58,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-23 22:30:58,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2023-11-23 22:30:58,127 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 14 [2023-11-23 22:30:58,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:58,128 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2023-11-23 22:30:58,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,128 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-23 22:30:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 22:30:58,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:58,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:58,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:30:58,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:30:58,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:58,132 INFO L85 PathProgramCache]: Analyzing trace with hash 181089686, now seen corresponding path program 1 times [2023-11-23 22:30:58,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:58,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717264416] [2023-11-23 22:30:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:58,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:58,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:58,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:58,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717264416] [2023-11-23 22:30:58,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717264416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:58,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:58,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:30:58,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369409312] [2023-11-23 22:30:58,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:58,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:30:58,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:58,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:30:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:58,297 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:58,320 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2023-11-23 22:30:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:30:58,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-23 22:30:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:58,322 INFO L225 Difference]: With dead ends: 27 [2023-11-23 22:30:58,322 INFO L226 Difference]: Without dead ends: 20 [2023-11-23 22:30:58,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:58,324 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:58,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:30:58,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-23 22:30:58,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-23 22:30:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-11-23 22:30:58,329 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 16 [2023-11-23 22:30:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:58,329 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-11-23 22:30:58,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,330 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-23 22:30:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 22:30:58,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:58,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:58,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:30:58,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:30:58,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash 291443768, now seen corresponding path program 1 times [2023-11-23 22:30:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:58,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26948821] [2023-11-23 22:30:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:58,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:58,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:58,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26948821] [2023-11-23 22:30:58,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26948821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:58,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:58,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:30:58,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245111138] [2023-11-23 22:30:58,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:58,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:30:58,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:58,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:30:58,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:58,854 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:58,922 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2023-11-23 22:30:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:30:58,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-23 22:30:58,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:58,925 INFO L225 Difference]: With dead ends: 33 [2023-11-23 22:30:58,926 INFO L226 Difference]: Without dead ends: 24 [2023-11-23 22:30:58,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:58,934 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:58,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 43 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:30:58,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-23 22:30:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-11-23 22:30:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-11-23 22:30:58,952 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2023-11-23 22:30:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:58,952 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-23 22:30:58,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-23 22:30:58,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 22:30:58,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:58,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:58,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:30:58,955 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:30:58,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:58,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1714903250, now seen corresponding path program 1 times [2023-11-23 22:30:58,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:58,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488147731] [2023-11-23 22:30:58,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:58,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:30:59,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:30:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:30:59,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:30:59,128 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:30:59,129 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:30:59,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:30:59,135 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 22:30:59,138 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:30:59,155 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-23 22:30:59,156 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-23 22:30:59,156 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-23 22:30:59,156 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-23 22:30:59,157 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-11-23 22:30:59,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:30:59 BoogieIcfgContainer [2023-11-23 22:30:59,166 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:30:59,167 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:30:59,167 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:30:59,167 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:30:59,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:57" (3/4) ... [2023-11-23 22:30:59,170 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:30:59,171 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:30:59,172 INFO L158 Benchmark]: Toolchain (without parser) took 2475.44ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 59.2MB in the end (delta: 45.0MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2023-11-23 22:30:59,172 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 148.9MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:30:59,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.22ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 92.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 22:30:59,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.51ms. Allocated memory is still 148.9MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:30:59,174 INFO L158 Benchmark]: Boogie Preprocessor took 81.74ms. Allocated memory is still 148.9MB. Free memory was 90.7MB in the beginning and 88.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:30:59,174 INFO L158 Benchmark]: RCFGBuilder took 465.02ms. Allocated memory is still 148.9MB. Free memory was 88.6MB in the beginning and 72.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 22:30:59,175 INFO L158 Benchmark]: TraceAbstraction took 1504.24ms. Allocated memory is still 148.9MB. Free memory was 71.4MB in the beginning and 60.1MB in the end (delta: 11.4MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-11-23 22:30:59,175 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 148.9MB. Free memory was 60.1MB in the beginning and 59.2MB in the end (delta: 895.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:30:59,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 148.9MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.22ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 92.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.51ms. Allocated memory is still 148.9MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.74ms. Allocated memory is still 148.9MB. Free memory was 90.7MB in the beginning and 88.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.02ms. Allocated memory is still 148.9MB. Free memory was 88.6MB in the beginning and 72.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1504.24ms. Allocated memory is still 148.9MB. Free memory was 71.4MB in the beginning and 60.1MB in the end (delta: 11.4MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 148.9MB. Free memory was 60.1MB in the beginning and 59.2MB in the end (delta: 895.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 61]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 60, overapproximation of bitwiseOr at line 29, overapproximation of to_real at line 57. Possible FailurePath: [L52] double x = __VERIFIER_nondet_double(); [L55] CALL, EXPR isinf_double(x) [L19] __int32_t hx, lx; VAL [\old(x)=4294967310, x=4294967310] [L21] ieee_double_shape_type ew_u; [L22] EXPR ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] EXPR (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] EXPR (lx) = ew_u.parts.lsw [L20-L25] { ieee_double_shape_type ew_u; ew_u.value = (x); (hx) = ew_u.parts.msw; (lx) = ew_u.parts.lsw; } VAL [\old(x)=4294967310, hx=0, lx=0, x=4294967310] [L26] hx &= 0x7fffffff VAL [\old(x)=4294967310, hx=0, lx=0, x=4294967310] [L27] EXPR lx | (-lx) VAL [\old(x)=4294967310, hx=0, lx=0, x=4294967310] [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx VAL [\old(x)=4294967310, hx=2146435072, lx=0, x=4294967310] [L29] EXPR hx | (-hx) VAL [\old(x)=4294967310, hx=2146435072, lx=0, x=4294967310] [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L55] RET, EXPR isinf_double(x) [L55] !isinf_double(x) && !isnan_double(x) [L55] CALL, EXPR isnan_double(x) [L33] return x != x; [L55] RET, EXPR isnan_double(x) [L55] !isinf_double(x) && !isnan_double(x) VAL [x=4294967310] [L55] COND TRUE !isinf_double(x) && !isnan_double(x) [L57] CALL, EXPR isfinite_double(x) [L36] __int32_t hx; VAL [\old(x)=4294967310, x=4294967310] [L38] ieee_double_shape_type gh_u; [L39] EXPR gh_u.value = (x) [L40] EXPR gh_u.parts.msw [L40] EXPR (hx) = gh_u.parts.msw [L37-L41] { ieee_double_shape_type gh_u; gh_u.value = (x); (hx) = gh_u.parts.msw; } VAL [\old(x)=4294967310, hx=-2147483648, x=4294967310] [L42] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L57] RET, EXPR isfinite_double(x) [L57] double res = isfinite_double(x); [L60] COND TRUE res == 0.0 VAL [x=4294967310] [L61] reach_error() VAL [x=4294967310] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 65 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2023-11-23 22:30:59,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70dcbfd71e657ebb73c2a6863351c66fa81e26e34ca397217ae05e2d3c176a8d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:31:01,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:31:02,065 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 22:31:02,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:31:02,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:31:02,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:31:02,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:31:02,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:31:02,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:31:02,134 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:31:02,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:31:02,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:31:02,135 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:31:02,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:31:02,137 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:31:02,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:31:02,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:31:02,139 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:31:02,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:31:02,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:31:02,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:31:02,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:31:02,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:31:02,142 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:31:02,143 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:31:02,143 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:31:02,144 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:31:02,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:31:02,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:31:02,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:31:02,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:31:02,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:31:02,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:31:02,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:31:02,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:31:02,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:31:02,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:31:02,149 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:31:02,149 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:31:02,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:31:02,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:31:02,150 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:31:02,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:31:02,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:31:02,151 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:31:02,151 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70dcbfd71e657ebb73c2a6863351c66fa81e26e34ca397217ae05e2d3c176a8d [2023-11-23 22:31:02,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:31:02,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:31:02,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:31:02,592 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:31:02,592 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:31:02,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-11-23 22:31:05,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:31:06,221 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:31:06,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-11-23 22:31:06,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/data/e89b23d1a/18a35834aeeb49b69732322853ecdbdb/FLAGa1029e6a2 [2023-11-23 22:31:06,257 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/data/e89b23d1a/18a35834aeeb49b69732322853ecdbdb [2023-11-23 22:31:06,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:31:06,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:31:06,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:31:06,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:31:06,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:31:06,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c44a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06, skipping insertion in model container [2023-11-23 22:31:06,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,312 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:31:06,531 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-11-23 22:31:06,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:31:06,550 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:31:06,574 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-11-23 22:31:06,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:31:06,594 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:31:06,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06 WrapperNode [2023-11-23 22:31:06,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:31:06,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:31:06,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:31:06,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:31:06,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,658 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2023-11-23 22:31:06,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:31:06,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:31:06,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:31:06,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:31:06,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,673 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,685 INFO L189 HeapSplitter]: Split 7 memory accesses to 3 slices as follows [2, 2, 3] [2023-11-23 22:31:06,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:31:06,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:31:06,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:31:06,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:31:06,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (1/1) ... [2023-11-23 22:31:06,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:31:06,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:06,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:31:06,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-23 22:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-23 22:31:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-23 22:31:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 22:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-23 22:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-23 22:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-23 22:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-23 22:31:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-23 22:31:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:31:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:31:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:31:06,920 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:31:06,922 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:31:07,278 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:31:07,314 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:31:07,314 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:31:07,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:07 BoogieIcfgContainer [2023-11-23 22:31:07,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:31:07,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:31:07,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:31:07,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:31:07,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:31:06" (1/3) ... [2023-11-23 22:31:07,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e08f2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:31:07, skipping insertion in model container [2023-11-23 22:31:07,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:06" (2/3) ... [2023-11-23 22:31:07,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e08f2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:31:07, skipping insertion in model container [2023-11-23 22:31:07,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:07" (3/3) ... [2023-11-23 22:31:07,324 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2023-11-23 22:31:07,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:31:07,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:31:07,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:31:07,398 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3195ac04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:31:07,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:31:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:07,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 22:31:07,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:07,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:07,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:07,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:07,416 INFO L85 PathProgramCache]: Analyzing trace with hash 736884262, now seen corresponding path program 1 times [2023-11-23 22:31:07,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:07,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501732673] [2023-11-23 22:31:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:07,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:07,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:07,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:07,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 22:31:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:07,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:31:07,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:07,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:07,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:07,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:07,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501732673] [2023-11-23 22:31:07,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501732673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:07,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:07,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:31:07,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127073596] [2023-11-23 22:31:07,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:07,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:31:07,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:07,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:31:07,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:31:07,665 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:07,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:07,783 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2023-11-23 22:31:07,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:31:07,801 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2023-11-23 22:31:07,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:07,807 INFO L225 Difference]: With dead ends: 29 [2023-11-23 22:31:07,807 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 22:31:07,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:31:07,813 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:07,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:31:07,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 22:31:07,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 22:31:07,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 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) [2023-11-23 22:31:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 22:31:07,844 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2023-11-23 22:31:07,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:07,845 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-11-23 22:31:07,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 22:31:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 22:31:07,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:07,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:07,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:08,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:08,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:08,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:08,050 INFO L85 PathProgramCache]: Analyzing trace with hash -995819208, now seen corresponding path program 1 times [2023-11-23 22:31:08,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:08,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886196584] [2023-11-23 22:31:08,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:08,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:08,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:08,054 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:08,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 22:31:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:31:08,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:08,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:08,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:08,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886196584] [2023-11-23 22:31:08,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886196584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:08,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:08,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:31:08,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374781269] [2023-11-23 22:31:08,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:08,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:08,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:08,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:08,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:08,196 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:08,318 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2023-11-23 22:31:08,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:08,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-23 22:31:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:08,325 INFO L225 Difference]: With dead ends: 19 [2023-11-23 22:31:08,326 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 22:31:08,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:08,328 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:08,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:31:08,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 22:31:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 22:31:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-11-23 22:31:08,332 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2023-11-23 22:31:08,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:08,333 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-11-23 22:31:08,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,333 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-11-23 22:31:08,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 22:31:08,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:08,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:08,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:08,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:08,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:08,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:08,539 INFO L85 PathProgramCache]: Analyzing trace with hash -885465126, now seen corresponding path program 1 times [2023-11-23 22:31:08,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:31:08,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570517922] [2023-11-23 22:31:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:08,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:08,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:31:08,542 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:31:08,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 22:31:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 22:31:08,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:11,351 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_10| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)))) (and (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor (bvneg .cse1) .cse1)) (_ bv31 32))))))) (bvor (bvneg .cse0) .cse0)) (_ bv31 32))) (_ bv1 32)) (_ bv0 32)) (fp.eq .cse2 .cse2) (= |c_ULTIMATE.start_isfinite_double_~hx~1#1| ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_10|)) (= .cse2 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_10|)))))) is different from true [2023-11-23 22:31:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:12,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:12,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:31:12,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570517922] [2023-11-23 22:31:12,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570517922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:12,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:12,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:31:12,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137580641] [2023-11-23 22:31:12,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:12,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:31:12,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:31:12,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:31:12,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2023-11-23 22:31:12,223 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:15,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:15,133 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-23 22:31:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:31:15,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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 11 [2023-11-23 22:31:15,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:15,142 INFO L225 Difference]: With dead ends: 12 [2023-11-23 22:31:15,142 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:31:15,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=22, Invalid=70, Unknown=2, NotChecked=16, Total=110 [2023-11-23 22:31:15,144 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:15,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 7 Unchecked, 0.6s Time] [2023-11-23 22:31:15,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:31:15,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:31:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:31:15,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-11-23 22:31:15,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:15,146 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:31:15,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:15,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:31:15,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:31:15,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:31:15,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-23 22:31:15,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:31:15,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:31:15,380 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 63) no Hoare annotation was computed. [2023-11-23 22:31:15,381 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 45 67) no Hoare annotation was computed. [2023-11-23 22:31:15,381 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-11-23 22:31:15,381 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2023-11-23 22:31:15,381 INFO L899 garLoopResultBuilder]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2023-11-23 22:31:15,381 INFO L895 garLoopResultBuilder]: At program point L20-2(lines 20 25) the Hoare annotation is: (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_isinf_double_~x#1|) [2023-11-23 22:31:15,381 INFO L899 garLoopResultBuilder]: For program point L20-3(lines 20 25) no Hoare annotation was computed. [2023-11-23 22:31:15,382 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 37 41) no Hoare annotation was computed. [2023-11-23 22:31:15,382 INFO L895 garLoopResultBuilder]: At program point L37-2(lines 37 41) the Hoare annotation is: (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)))) (and (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor (bvneg .cse1) .cse1)) (_ bv31 32))))))) (bvor (bvneg .cse0) .cse0)) (_ bv31 32))) (_ bv1 32)) (_ bv0 32)) (fp.eq .cse2 .cse2) (= .cse2 |ULTIMATE.start_isfinite_double_~x#1|)))) [2023-11-23 22:31:15,382 INFO L899 garLoopResultBuilder]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2023-11-23 22:31:15,382 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:31:15,382 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:31:15,383 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-11-23 22:31:15,383 INFO L899 garLoopResultBuilder]: For program point L55-2(lines 55 64) no Hoare annotation was computed. [2023-11-23 22:31:15,383 INFO L899 garLoopResultBuilder]: For program point L55-4(lines 55 64) no Hoare annotation was computed. [2023-11-23 22:31:15,386 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 22:31:15,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:31:15,399 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_9 : bv64 :: (~bvadd~32(~bvneg~32(~bvlshr~32(~bvor~32(~bvneg~32(~bvadd~32(2146435072bv32, ~bvneg~32(~bvor~32(~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr~32(~bvor~32(~bvneg~32(v_skolemized_q#valueAsBitvector_9[31:0]), v_skolemized_q#valueAsBitvector_9[31:0]), 31bv32))))), ~bvadd~32(2146435072bv32, ~bvneg~32(~bvor~32(~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr~32(~bvor~32(~bvneg~32(v_skolemized_q#valueAsBitvector_9[31:0]), v_skolemized_q#valueAsBitvector_9[31:0]), 31bv32))))), 31bv32)), 1bv32) == 0bv32 && ~fp.eq~64(~fp~64(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]), ~fp~64(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]))) && ~fp~64(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) == ~x) could not be translated [2023-11-23 22:31:15,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:31:15 BoogieIcfgContainer [2023-11-23 22:31:15,407 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:31:15,409 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:31:15,409 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:31:15,409 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:31:15,410 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:07" (3/4) ... [2023-11-23 22:31:15,412 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:31:15,425 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-23 22:31:15,426 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-23 22:31:15,426 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:31:15,427 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:31:15,521 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:31:15,521 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:31:15,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:31:15,522 INFO L158 Benchmark]: Toolchain (without parser) took 9254.03ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 57.7MB in the beginning and 66.0MB in the end (delta: -8.3MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-11-23 22:31:15,523 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 57.3MB in the end (delta: 85.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:31:15,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.93ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 46.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:31:15,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.93ms. Allocated memory is still 81.8MB. Free memory was 46.0MB in the beginning and 44.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:31:15,524 INFO L158 Benchmark]: Boogie Preprocessor took 53.28ms. Allocated memory is still 81.8MB. Free memory was 44.4MB in the beginning and 42.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:31:15,524 INFO L158 Benchmark]: RCFGBuilder took 601.28ms. Allocated memory is still 81.8MB. Free memory was 42.1MB in the beginning and 51.0MB in the end (delta: -9.0MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2023-11-23 22:31:15,525 INFO L158 Benchmark]: TraceAbstraction took 8090.35ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 50.4MB in the beginning and 70.8MB in the end (delta: -20.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-11-23 22:31:15,525 INFO L158 Benchmark]: Witness Printer took 112.93ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 66.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:31:15,527 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 57.3MB in the end (delta: 85.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.93ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 46.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.93ms. Allocated memory is still 81.8MB. Free memory was 46.0MB in the beginning and 44.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.28ms. Allocated memory is still 81.8MB. Free memory was 44.4MB in the beginning and 42.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 601.28ms. Allocated memory is still 81.8MB. Free memory was 42.1MB in the beginning and 51.0MB in the end (delta: -9.0MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8090.35ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 50.4MB in the beginning and 70.8MB in the end (delta: -20.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 112.93ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 66.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_9 : bv64 :: (~bvadd~32(~bvneg~32(~bvlshr~32(~bvor~32(~bvneg~32(~bvadd~32(2146435072bv32, ~bvneg~32(~bvor~32(~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr~32(~bvor~32(~bvneg~32(v_skolemized_q#valueAsBitvector_9[31:0]), v_skolemized_q#valueAsBitvector_9[31:0]), 31bv32))))), ~bvadd~32(2146435072bv32, ~bvneg~32(~bvor~32(~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr~32(~bvor~32(~bvneg~32(v_skolemized_q#valueAsBitvector_9[31:0]), v_skolemized_q#valueAsBitvector_9[31:0]), 31bv32))))), 31bv32)), 1bv32) == 0bv32 && ~fp.eq~64(~fp~64(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]), ~fp~64(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]))) && ~fp~64(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) == ~x) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 61]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 7 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 70 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 8 QuantifiedInterpolants, 544 SizeOfPredicates, 14 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x == x) RESULT: Ultimate proved your program to be correct! [2023-11-23 22:31:15,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4c25cb-9eef-4cc6-a6ba-96757cd5f6ff/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE