./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be73f52cb7fef2aadd52631c6570f78c982923e81de6f6701c226e9332c8fefa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:52:48,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:52:48,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:52:48,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:52:48,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:52:48,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:52:48,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:52:48,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:52:48,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:52:48,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:52:48,400 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:52:48,401 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:52:48,402 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:52:48,403 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:52:48,404 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:52:48,404 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:52:48,405 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:52:48,405 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:52:48,406 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:52:48,406 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:52:48,407 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:52:48,407 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:52:48,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:52:48,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:52:48,410 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:52:48,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:52:48,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:52:48,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:52:48,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:52:48,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:52:48,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:52:48,414 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:52:48,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:52:48,414 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:52:48,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:52:48,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:52:48,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:52:48,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:52:48,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:52:48,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:52:48,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:52:48,417 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:52:48,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:52:48,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:52:48,418 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:52:48,418 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:52:48,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:52:48,419 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be73f52cb7fef2aadd52631c6570f78c982923e81de6f6701c226e9332c8fefa [2023-11-21 19:52:48,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:52:48,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:52:48,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:52:48,773 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:52:48,773 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:52:48,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/float-newlib/float_req_bl_1072b.c [2023-11-21 19:52:51,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:52:52,139 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:52:52,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/sv-benchmarks/c/float-newlib/float_req_bl_1072b.c [2023-11-21 19:52:52,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/data/dcfd10aad/c5a54d7f2b494186abc5ad5272103db9/FLAG3e15946f4 [2023-11-21 19:52:52,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/data/dcfd10aad/c5a54d7f2b494186abc5ad5272103db9 [2023-11-21 19:52:52,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:52:52,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:52:52,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:52:52,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:52:52,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:52:52,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b6edf05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52, skipping insertion in model container [2023-11-21 19:52:52,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,215 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:52:52,446 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_68c76d42-360b-4e56-ba2a-20e720751b04/sv-benchmarks/c/float-newlib/float_req_bl_1072b.c[1610,1623] [2023-11-21 19:52:52,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:52:52,467 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:52:52,510 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_68c76d42-360b-4e56-ba2a-20e720751b04/sv-benchmarks/c/float-newlib/float_req_bl_1072b.c[1610,1623] [2023-11-21 19:52:52,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:52:52,528 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:52:52,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52 WrapperNode [2023-11-21 19:52:52,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:52:52,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:52:52,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:52:52,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:52:52,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,598 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 123 [2023-11-21 19:52:52,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:52:52,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:52:52,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:52:52,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:52:52,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:52:52,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:52:52,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:52:52,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:52:52,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (1/1) ... [2023-11-21 19:52:52,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:52:52,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:52:52,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:52:52,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:52:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:52:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:52:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:52:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-21 19:52:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:52:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-21 19:52:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:52:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:52:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:52:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:52:52,829 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:52:52,831 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:52:53,098 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:52:53,303 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:52:53,303 INFO L308 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-21 19:52:53,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:52:53 BoogieIcfgContainer [2023-11-21 19:52:53,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:52:53,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:52:53,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:52:53,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:52:53,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:52:52" (1/3) ... [2023-11-21 19:52:53,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaebe86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:52:53, skipping insertion in model container [2023-11-21 19:52:53,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:52:52" (2/3) ... [2023-11-21 19:52:53,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaebe86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:52:53, skipping insertion in model container [2023-11-21 19:52:53,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:52:53" (3/3) ... [2023-11-21 19:52:53,326 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b.c [2023-11-21 19:52:53,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:52:53,344 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:52:53,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:52:53,396 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=FINITE_AUTOMATA, 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;@6db65f54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:52:53,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:52:53,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 20 states have internal predecessors, (32), 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) [2023-11-21 19:52:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 19:52:53,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:52:53,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:52:53,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:52:53,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:52:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash -369789222, now seen corresponding path program 1 times [2023-11-21 19:52:53,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:52:53,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454686142] [2023-11-21 19:52:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:52:53,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:52:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:52:53,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:52:53,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:52:53,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454686142] [2023-11-21 19:52:53,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454686142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:52:53,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:52:53,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:52:53,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120450026] [2023-11-21 19:52:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:52:53,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:52:53,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:52:53,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:52:53,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:52:53,692 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 20 states have internal predecessors, (32), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:52:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:52:53,759 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2023-11-21 19:52:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:52:53,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-21 19:52:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:52:53,775 INFO L225 Difference]: With dead ends: 41 [2023-11-21 19:52:53,775 INFO L226 Difference]: Without dead ends: 19 [2023-11-21 19:52:53,779 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 [2023-11-21 19:52:53,783 INFO L413 NwaCegarLoop]: 18 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, 18 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 [2023-11-21 19:52:53,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:52:53,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-21 19:52:53,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-21 19:52:53,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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) [2023-11-21 19:52:53,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-21 19:52:53,820 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2023-11-21 19:52:53,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:52:53,821 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-21 19:52:53,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:52:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-21 19:52:53,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 19:52:53,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:52:53,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:52:53,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:52:53,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:52:53,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:52:53,825 INFO L85 PathProgramCache]: Analyzing trace with hash -817112673, now seen corresponding path program 1 times [2023-11-21 19:52:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:52:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941119281] [2023-11-21 19:52:53,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:52:53,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:52:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:52:54,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:52:54,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:52:54,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941119281] [2023-11-21 19:52:54,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941119281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:52:54,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:52:54,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:52:54,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044610769] [2023-11-21 19:52:54,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:52:54,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:52:54,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:52:54,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:52:54,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:52:54,263 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2023-11-21 19:52:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:52:54,290 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-11-21 19:52:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:52:54,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-21 19:52:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:52:54,292 INFO L225 Difference]: With dead ends: 26 [2023-11-21 19:52:54,292 INFO L226 Difference]: Without dead ends: 19 [2023-11-21 19:52:54,292 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 [2023-11-21 19:52:54,294 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:52:54,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:52:54,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-21 19:52:54,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-21 19:52:54,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2023-11-21 19:52:54,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2023-11-21 19:52:54,300 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2023-11-21 19:52:54,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:52:54,300 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2023-11-21 19:52:54,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2023-11-21 19:52:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-11-21 19:52:54,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 19:52:54,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:52:54,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:52:54,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:52:54,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:52:54,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:52:54,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2031156240, now seen corresponding path program 1 times [2023-11-21 19:52:54,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:52:54,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49681555] [2023-11-21 19:52:54,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:52:54,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:52:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:52:54,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:52:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:52:54,489 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 19:52:54,491 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:52:54,493 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:52:54,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:52:54,499 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-21 19:52:54,503 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:52:54,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:52:54 BoogieIcfgContainer [2023-11-21 19:52:54,539 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:52:54,540 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:52:54,540 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:52:54,541 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:52:54,542 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:52:53" (3/4) ... [2023-11-21 19:52:54,548 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:52:54,549 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:52:54,550 INFO L158 Benchmark]: Toolchain (without parser) took 2372.37ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 97.1MB in the beginning and 145.4MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:52:54,551 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:52:54,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.88ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 85.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 19:52:54,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.48ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:52:54,562 INFO L158 Benchmark]: Boogie Preprocessor took 63.34ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 82.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:52:54,562 INFO L158 Benchmark]: RCFGBuilder took 635.93ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 82.2MB in the beginning and 140.7MB in the end (delta: -58.5MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-21 19:52:54,563 INFO L158 Benchmark]: TraceAbstraction took 1230.62ms. Allocated memory is still 182.5MB. Free memory was 139.4MB in the beginning and 145.4MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:52:54,567 INFO L158 Benchmark]: Witness Printer took 9.56ms. Allocated memory is still 182.5MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:52:54,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.88ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 85.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.48ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.34ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 82.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 635.93ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 82.2MB in the beginning and 140.7MB in the end (delta: -58.5MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1230.62ms. Allocated memory is still 182.5MB. Free memory was 139.4MB in the beginning and 145.4MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.56ms. Allocated memory is still 182.5MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 68]: 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 someBinaryArithmeticFLOAToperation at line 63, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L63] float x = -1.0f / 0.0f; [L64] CALL, EXPR trunc_float(x) [L14] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6434062347, x=6434062347] [L16] ieee_float_shape_type gf_u; [L17] EXPR gf_u.value = (x) [L18] EXPR gf_u.word [L18] EXPR (w) = gf_u.word [L15-L19] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=6434062347, w=2139095041, x=6434062347] [L20] signbit = w & 0x80000000 [L21] EXPR w & 0x7f800000 [L21] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L22] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6434062347, exponent_less_127=128, signbit=0, w=2139095041, x=6434062347] [L38] COND FALSE !(exponent_less_127 == 255) VAL [\old(x)=6434062347, exponent_less_127=128, signbit=0, w=2139095041, x=6434062347] [L41] return x; VAL [\old(x)=6434062347, \result=6434062347, exponent_less_127=128, signbit=0, w=2139095041, x=6434062347] [L64] RET, EXPR trunc_float(x) [L64] float res = trunc_float(x); [L67] CALL, EXPR isinf_float(res) [L46] __int32_t ix; VAL [\old(x)=6434062347, x=6434062347] [L48] ieee_float_shape_type gf_u; [L49] EXPR gf_u.value = (x) [L50] EXPR gf_u.word [L50] EXPR (ix) = gf_u.word [L47-L51] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=6434062347, ix=-2147483648, x=6434062347] [L52] ix &= 0x7fffffff [L53] return ((ix) == 0x7f800000L); [L67] RET, EXPR isinf_float(res) [L67] COND TRUE !isinf_float(res) [L68] reach_error() VAL [res=6434062347, x=6434062347] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 19:52:54,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be73f52cb7fef2aadd52631c6570f78c982923e81de6f6701c226e9332c8fefa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:52:57,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:52:57,299 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-21 19:52:57,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:52:57,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:52:57,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:52:57,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:52:57,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:52:57,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:52:57,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:52:57,351 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:52:57,351 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:52:57,352 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:52:57,352 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:52:57,353 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:52:57,354 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:52:57,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:52:57,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:52:57,356 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:52:57,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:52:57,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:52:57,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:52:57,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:52:57,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:52:57,363 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:52:57,363 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:52:57,364 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:52:57,364 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:52:57,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:52:57,365 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:52:57,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:52:57,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:52:57,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:52:57,367 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:52:57,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:52:57,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:52:57,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:52:57,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:52:57,369 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:52:57,371 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:52:57,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:52:57,373 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:52:57,373 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:52:57,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:52:57,373 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be73f52cb7fef2aadd52631c6570f78c982923e81de6f6701c226e9332c8fefa [2023-11-21 19:52:57,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:52:57,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:52:57,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:52:57,817 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:52:57,817 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:52:57,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/float-newlib/float_req_bl_1072b.c [2023-11-21 19:53:01,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:53:01,264 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:53:01,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/sv-benchmarks/c/float-newlib/float_req_bl_1072b.c [2023-11-21 19:53:01,272 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/data/179fa4842/2db8db5aa15d4849bcebe080bf3edba2/FLAG56367deab [2023-11-21 19:53:01,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/data/179fa4842/2db8db5aa15d4849bcebe080bf3edba2 [2023-11-21 19:53:01,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:53:01,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:53:01,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:53:01,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:53:01,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:53:01,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d011c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01, skipping insertion in model container [2023-11-21 19:53:01,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,322 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:53:01,524 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_68c76d42-360b-4e56-ba2a-20e720751b04/sv-benchmarks/c/float-newlib/float_req_bl_1072b.c[1610,1623] [2023-11-21 19:53:01,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:53:01,545 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:53:01,588 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_68c76d42-360b-4e56-ba2a-20e720751b04/sv-benchmarks/c/float-newlib/float_req_bl_1072b.c[1610,1623] [2023-11-21 19:53:01,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:53:01,610 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:53:01,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01 WrapperNode [2023-11-21 19:53:01,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:53:01,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:53:01,615 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:53:01,615 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:53:01,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,657 INFO L138 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2023-11-21 19:53:01,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:53:01,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:53:01,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:53:01,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:53:01,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:53:01,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:53:01,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:53:01,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:53:01,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (1/1) ... [2023-11-21 19:53:01,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:53:01,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:53:01,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:53:01,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:53:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:53:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:53:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:53:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-21 19:53:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 19:53:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:53:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:53:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-21 19:53:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 19:53:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:53:01,950 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:53:01,953 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:53:02,304 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:53:02,353 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:53:02,353 INFO L308 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-21 19:53:02,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:53:02 BoogieIcfgContainer [2023-11-21 19:53:02,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:53:02,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:53:02,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:53:02,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:53:02,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:53:01" (1/3) ... [2023-11-21 19:53:02,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1e9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:53:02, skipping insertion in model container [2023-11-21 19:53:02,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:01" (2/3) ... [2023-11-21 19:53:02,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1e9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:53:02, skipping insertion in model container [2023-11-21 19:53:02,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:53:02" (3/3) ... [2023-11-21 19:53:02,372 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b.c [2023-11-21 19:53:02,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:53:02,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:53:02,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:53:02,466 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=FINITE_AUTOMATA, 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;@47caaf68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:53:02,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:53:02,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 20 states have internal predecessors, (32), 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) [2023-11-21 19:53:02,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 19:53:02,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:02,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:53:02,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:53:02,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:02,490 INFO L85 PathProgramCache]: Analyzing trace with hash -691508748, now seen corresponding path program 1 times [2023-11-21 19:53:02,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:53:02,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983885617] [2023-11-21 19:53:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:02,505 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 [2023-11-21 19:53:02,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:53:02,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:53:02,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:53:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:02,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 19:53:02,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:53:02,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:53:02,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:53:02,705 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:53:02,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983885617] [2023-11-21 19:53:02,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983885617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:02,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:02,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:53:02,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346292059] [2023-11-21 19:53:02,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:02,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:53:02,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:53:02,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:53:02,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:53:02,773 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 20 states have internal predecessors, (32), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:53:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:53:02,802 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2023-11-21 19:53:02,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:53:02,804 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-21 19:53:02,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:53:02,813 INFO L225 Difference]: With dead ends: 41 [2023-11-21 19:53:02,813 INFO L226 Difference]: Without dead ends: 19 [2023-11-21 19:53:02,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:53:02,822 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:53:02,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:53:02,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-21 19:53:02,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-21 19:53:02,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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) [2023-11-21 19:53:02,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-21 19:53:02,860 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2023-11-21 19:53:02,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:53:02,861 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-21 19:53:02,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:53:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-21 19:53:02,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 19:53:02,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:02,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:53:02,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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)] Ended with exit code 0 [2023-11-21 19:53:03,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:53:03,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:53:03,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:03,069 INFO L85 PathProgramCache]: Analyzing trace with hash 879368308, now seen corresponding path program 1 times [2023-11-21 19:53:03,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:53:03,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962568917] [2023-11-21 19:53:03,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:03,070 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 [2023-11-21 19:53:03,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:53:03,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:53:03,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:53:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:03,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 19:53:03,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:53:03,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:53:03,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:53:03,522 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:53:03,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962568917] [2023-11-21 19:53:03,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962568917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:03,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:03,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:53:03,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829356645] [2023-11-21 19:53:03,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:03,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:53:03,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:53:03,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:53:03,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:53:03,527 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2023-11-21 19:53:03,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:53:03,740 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2023-11-21 19:53:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:53:03,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-21 19:53:03,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:53:03,742 INFO L225 Difference]: With dead ends: 27 [2023-11-21 19:53:03,742 INFO L226 Difference]: Without dead ends: 14 [2023-11-21 19:53:03,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 19:53:03,744 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:53:03,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 19 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:53:03,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-21 19:53:03,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-21 19:53:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:53:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2023-11-21 19:53:03,750 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 12 [2023-11-21 19:53:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:53:03,750 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2023-11-21 19:53:03,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2023-11-21 19:53:03,751 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2023-11-21 19:53:03,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 19:53:03,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:03,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:53:03,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:53:03,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:53:03,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:53:03,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:03,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1212537068, now seen corresponding path program 1 times [2023-11-21 19:53:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:53:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389637825] [2023-11-21 19:53:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:03,961 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 [2023-11-21 19:53:03,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:53:03,971 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:53:03,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:53:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:04,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 19:53:04,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:53:04,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:53:04,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:53:04,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:53:04,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389637825] [2023-11-21 19:53:04,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389637825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:04,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:04,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:53:04,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921311226] [2023-11-21 19:53:04,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:04,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 19:53:04,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:53:04,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 19:53:04,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 19:53:04,469 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:53:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:53:04,784 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2023-11-21 19:53:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 19:53:04,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-21 19:53:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:53:04,785 INFO L225 Difference]: With dead ends: 14 [2023-11-21 19:53:04,785 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 19:53:04,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-21 19:53:04,787 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:53:04,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:53:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 19:53:04,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 19:53:04,789 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) [2023-11-21 19:53:04,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 19:53:04,789 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-21 19:53:04,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:53:04,789 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 19:53:04,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:53:04,790 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 19:53:04,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 19:53:04,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:53:04,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:53:05,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:53:05,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 19:53:05,052 INFO L899 garLoopResultBuilder]: For program point L31-1(lines 31 35) no Hoare annotation was computed. [2023-11-21 19:53:05,052 INFO L895 garLoopResultBuilder]: At program point L31-2(lines 31 35) the Hoare annotation is: false [2023-11-21 19:53:05,052 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 36) no Hoare annotation was computed. [2023-11-21 19:53:05,052 INFO L899 garLoopResultBuilder]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2023-11-21 19:53:05,053 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 15 19) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_trunc_float_~x#1|)) [2023-11-21 19:53:05,053 INFO L899 garLoopResultBuilder]: For program point L15-3(lines 15 19) no Hoare annotation was computed. [2023-11-21 19:53:05,053 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 56 73) no Hoare annotation was computed. [2023-11-21 19:53:05,053 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 68) no Hoare annotation was computed. [2023-11-21 19:53:05,053 INFO L899 garLoopResultBuilder]: For program point trunc_float_returnLabel#1(lines 13 42) no Hoare annotation was computed. [2023-11-21 19:53:05,053 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 19:53:05,053 INFO L899 garLoopResultBuilder]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2023-11-21 19:53:05,054 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 29) the Hoare annotation is: false [2023-11-21 19:53:05,054 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 19:53:05,054 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2023-11-21 19:53:05,054 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2023-11-21 19:53:05,054 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 40) no Hoare annotation was computed. [2023-11-21 19:53:05,054 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 40) no Hoare annotation was computed. [2023-11-21 19:53:05,055 INFO L899 garLoopResultBuilder]: For program point L47-1(lines 47 51) no Hoare annotation was computed. [2023-11-21 19:53:05,055 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 51) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_isinf_float_~x#1|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_trunc_float_#res#1|))) [2023-11-21 19:53:05,055 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2023-11-21 19:53:05,055 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-11-21 19:53:05,059 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-21 19:53:05,061 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:53:05,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) == ~x) could not be translated [2023-11-21 19:53:05,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) == #res) could not be translated [2023-11-21 19:53:05,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) == ~x) could not be translated [2023-11-21 19:53:05,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:53:05 BoogieIcfgContainer [2023-11-21 19:53:05,083 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:53:05,084 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:53:05,084 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:53:05,084 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:53:05,085 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:53:02" (3/4) ... [2023-11-21 19:53:05,087 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 19:53:05,096 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-21 19:53:05,096 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-21 19:53:05,096 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 19:53:05,097 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 19:53:05,247 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 19:53:05,248 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/witness.yml [2023-11-21 19:53:05,248 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:53:05,249 INFO L158 Benchmark]: Toolchain (without parser) took 3957.23ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 35.7MB in the beginning and 81.5MB in the end (delta: -45.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:53:05,249 INFO L158 Benchmark]: CDTParser took 1.42ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:53:05,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.57ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 35.5MB in the beginning and 84.9MB in the end (delta: -49.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-11-21 19:53:05,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.15ms. Allocated memory is still 109.1MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:53:05,251 INFO L158 Benchmark]: Boogie Preprocessor took 57.92ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 81.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:53:05,251 INFO L158 Benchmark]: RCFGBuilder took 638.46ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 67.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 19:53:05,251 INFO L158 Benchmark]: TraceAbstraction took 2725.66ms. Allocated memory is still 109.1MB. Free memory was 66.4MB in the beginning and 86.4MB in the end (delta: -20.0MB). Peak memory consumption was 582.1kB. Max. memory is 16.1GB. [2023-11-21 19:53:05,252 INFO L158 Benchmark]: Witness Printer took 164.31ms. Allocated memory is still 109.1MB. Free memory was 86.4MB in the beginning and 81.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:53:05,255 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.57ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 35.5MB in the beginning and 84.9MB in the end (delta: -49.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.15ms. Allocated memory is still 109.1MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.92ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 81.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.46ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 67.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2725.66ms. Allocated memory is still 109.1MB. Free memory was 66.4MB in the beginning and 86.4MB in the end (delta: -20.0MB). Peak memory consumption was 582.1kB. Max. memory is 16.1GB. * Witness Printer took 164.31ms. Allocated memory is still 109.1MB. Free memory was 86.4MB in the beginning and 81.5MB in the end (delta: 4.9MB). 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 currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) == #res) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) == ~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: 68]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 31 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 6 NumberOfFragments, 33 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 15 QuantifiedInterpolants, 227 SizeOfPredicates, 17 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 24 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: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-21 19:53:05,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c76d42-360b-4e56-ba2a-20e720751b04/bin/utaipan-verify-QoSU8krkJ5/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