./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:00:01,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:00:01,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:00:01,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:00:01,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:00:01,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:00:01,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:00:01,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:00:01,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:00:01,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:00:01,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:00:01,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:00:01,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:00:01,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:00:01,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:00:01,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:00:01,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:00:01,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:00:01,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:00:01,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:00:01,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:00:01,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:00:01,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:00:01,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:00:01,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:00:01,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:00:01,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:00:01,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:00:01,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:00:01,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:00:01,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:00:01,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:00:01,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:00:01,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:00:01,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:00:01,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:00:01,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:00:02,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:00:02,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:00:02,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:00:02,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:00:02,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:00:02,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:00:02,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:00:02,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:00:02,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:00:02,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:00:02,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:00:02,029 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:00:02,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:00:02,029 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:00:02,030 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:00:02,030 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:00:02,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:00:02,030 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:00:02,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:00:02,030 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:00:02,031 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:00:02,031 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:00:02,031 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:00:02,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:00:02,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:00:02,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:00:02,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:00:02,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:00:02,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:00:02,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:00:02,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:00:02,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:00:02,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:00:02,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:00:02,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:00:02,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:00:02,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:00:02,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:00:02,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:00:02,034 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:00:02,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:00:02,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:00:02,035 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:00:02,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:00:02,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:00:02,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:00:02,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d [2022-12-14 12:00:02,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:00:02,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:00:02,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:00:02,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:00:02,244 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:00:02,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2022-12-14 12:00:04,888 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:00:05,026 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:00:05,026 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2022-12-14 12:00:05,032 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/data/c78e2dc88/c267710abf03427abcef9b2b19368084/FLAGac2a2fc9f [2022-12-14 12:00:05,043 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/data/c78e2dc88/c267710abf03427abcef9b2b19368084 [2022-12-14 12:00:05,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:00:05,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:00:05,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:00:05,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:00:05,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:00:05,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c93359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05, skipping insertion in model container [2022-12-14 12:00:05,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:00:05,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:00:05,202 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2022-12-14 12:00:05,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:00:05,213 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:00:05,240 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2022-12-14 12:00:05,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:00:05,250 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:00:05,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05 WrapperNode [2022-12-14 12:00:05,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:00:05,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:00:05,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:00:05,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:00:05,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,284 INFO L138 Inliner]: procedures = 19, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 257 [2022-12-14 12:00:05,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:00:05,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:00:05,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:00:05,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:00:05,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:00:05,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:00:05,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:00:05,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:00:05,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (1/1) ... [2022-12-14 12:00:05,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:00:05,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:00:05,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:00:05,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:00:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:00:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:00:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:00:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-12-14 12:00:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:00:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-12-14 12:00:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:00:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:00:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:00:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:00:05,467 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:00:05,469 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:00:05,767 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:00:05,854 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:00:05,854 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-12-14 12:00:05,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:00:05 BoogieIcfgContainer [2022-12-14 12:00:05,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:00:05,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:00:05,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:00:05,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:00:05,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:00:05" (1/3) ... [2022-12-14 12:00:05,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52020233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:00:05, skipping insertion in model container [2022-12-14 12:00:05,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:05" (2/3) ... [2022-12-14 12:00:05,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52020233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:00:05, skipping insertion in model container [2022-12-14 12:00:05,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:00:05" (3/3) ... [2022-12-14 12:00:05,864 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2022-12-14 12:00:05,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:00:05,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:00:05,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:00:05,928 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b103759, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:00:05,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:00:05,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:05,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 12:00:05,935 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:05,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:00:05,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:00:05,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash -791222452, now seen corresponding path program 1 times [2022-12-14 12:00:05,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:05,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749243953] [2022-12-14 12:00:05,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:05,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:06,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:06,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749243953] [2022-12-14 12:00:06,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749243953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:06,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:06,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:00:06,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182368799] [2022-12-14 12:00:06,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:06,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:00:06,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:06,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:00:06,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:00:06,072 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:06,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:06,108 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2022-12-14 12:00:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:00:06,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-12-14 12:00:06,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:06,119 INFO L225 Difference]: With dead ends: 91 [2022-12-14 12:00:06,120 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 12:00:06,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:00:06,125 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:06,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:00:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 12:00:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 12:00:06,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2022-12-14 12:00:06,159 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2022-12-14 12:00:06,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:06,159 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2022-12-14 12:00:06,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-12-14 12:00:06,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 12:00:06,160 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:06,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:00:06,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:00:06,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:00:06,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:06,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1516165653, now seen corresponding path program 1 times [2022-12-14 12:00:06,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:06,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186013107] [2022-12-14 12:00:06,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:06,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:00:06,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:00:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:00:06,238 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 12:00:06,239 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:00:06,240 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 12:00:06,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:00:06,245 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 12:00:06,248 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:00:06,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:00:06 BoogieIcfgContainer [2022-12-14 12:00:06,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:00:06,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:00:06,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:00:06,272 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:00:06,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:00:05" (3/4) ... [2022-12-14 12:00:06,275 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 12:00:06,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:00:06,276 INFO L158 Benchmark]: Toolchain (without parser) took 1229.47ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 77.8MB in the beginning and 101.5MB in the end (delta: -23.7MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2022-12-14 12:00:06,277 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:00:06,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.31ms. Allocated memory is still 111.1MB. Free memory was 77.8MB in the beginning and 64.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 12:00:06,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.10ms. Allocated memory is still 111.1MB. Free memory was 64.4MB in the beginning and 62.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:00:06,278 INFO L158 Benchmark]: Boogie Preprocessor took 33.55ms. Allocated memory is still 111.1MB. Free memory was 61.7MB in the beginning and 59.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:00:06,279 INFO L158 Benchmark]: RCFGBuilder took 537.27ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.6MB in the beginning and 91.0MB in the end (delta: -31.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-12-14 12:00:06,279 INFO L158 Benchmark]: TraceAbstraction took 412.42ms. Allocated memory is still 134.2MB. Free memory was 90.4MB in the beginning and 101.5MB in the end (delta: -11.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-12-14 12:00:06,280 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 134.2MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:00:06,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.31ms. Allocated memory is still 111.1MB. Free memory was 77.8MB in the beginning and 64.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.10ms. Allocated memory is still 111.1MB. Free memory was 64.4MB in the beginning and 62.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.55ms. Allocated memory is still 111.1MB. Free memory was 61.7MB in the beginning and 59.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 537.27ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.6MB in the beginning and 91.0MB in the end (delta: -31.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 412.42ms. Allocated memory is still 134.2MB. Free memory was 90.4MB in the beginning and 101.5MB in the end (delta: -11.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 134.2MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 200]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = 0.0f; [L196] CALL, EXPR __ieee754_asinf(x) [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, hx=1065353216, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, hx=1065353216, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L196] RET, EXPR __ieee754_asinf(x) [L196] float res = __ieee754_asinf(x); [L199] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L199] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, tiny_sqrt=1/1000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 12:00:06,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:00:07,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:00:07,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:00:07,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:00:07,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:00:07,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:00:07,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:00:07,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:00:07,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:00:07,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:00:07,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:00:07,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:00:07,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:00:07,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:00:07,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:00:07,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:00:07,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:00:07,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:00:07,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:00:08,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:00:08,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:00:08,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:00:08,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:00:08,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:00:08,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:00:08,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:00:08,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:00:08,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:00:08,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:00:08,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:00:08,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:00:08,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:00:08,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:00:08,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:00:08,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:00:08,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:00:08,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:00:08,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:00:08,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:00:08,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:00:08,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:00:08,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 12:00:08,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:00:08,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:00:08,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:00:08,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:00:08,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:00:08,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:00:08,032 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:00:08,032 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:00:08,032 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:00:08,032 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:00:08,032 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:00:08,032 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:00:08,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:00:08,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:00:08,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:00:08,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:00:08,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:00:08,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 12:00:08,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:00:08,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:00:08,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:00:08,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:00:08,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:00:08,035 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 12:00:08,035 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 12:00:08,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:00:08,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:00:08,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 12:00:08,035 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d [2022-12-14 12:00:08,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:00:08,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:00:08,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:00:08,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:00:08,252 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:00:08,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2022-12-14 12:00:10,880 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:00:11,002 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:00:11,002 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2022-12-14 12:00:11,008 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/data/8fba5e789/53a1226f13fa4ed19e7a078d10d21346/FLAG3262fd897 [2022-12-14 12:00:11,019 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/data/8fba5e789/53a1226f13fa4ed19e7a078d10d21346 [2022-12-14 12:00:11,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:00:11,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:00:11,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:00:11,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:00:11,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:00:11,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20611d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11, skipping insertion in model container [2022-12-14 12:00:11,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:00:11,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:00:11,206 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2022-12-14 12:00:11,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:00:11,221 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:00:11,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2022-12-14 12:00:11,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:00:11,260 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:00:11,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11 WrapperNode [2022-12-14 12:00:11,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:00:11,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:00:11,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:00:11,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:00:11,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,295 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 257 [2022-12-14 12:00:11,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:00:11,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:00:11,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:00:11,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:00:11,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:00:11,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:00:11,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:00:11,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:00:11,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (1/1) ... [2022-12-14 12:00:11,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:00:11,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:00:11,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:00:11,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:00:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:00:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 12:00:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:00:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-12-14 12:00:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 12:00:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:00:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:00:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-12-14 12:00:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 12:00:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:00:11,463 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:00:11,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:00:21,707 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:00:21,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:00:21,714 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-12-14 12:00:21,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:00:21 BoogieIcfgContainer [2022-12-14 12:00:21,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:00:21,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:00:21,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:00:21,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:00:21,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:00:11" (1/3) ... [2022-12-14 12:00:21,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9f5742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:00:21, skipping insertion in model container [2022-12-14 12:00:21,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:00:11" (2/3) ... [2022-12-14 12:00:21,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9f5742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:00:21, skipping insertion in model container [2022-12-14 12:00:21,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:00:21" (3/3) ... [2022-12-14 12:00:21,723 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2022-12-14 12:00:21,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:00:21,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:00:21,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:00:21,778 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3968b1bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:00:21,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:00:21,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 12:00:21,786 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:21,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:00:21,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:00:21,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:21,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2022-12-14 12:00:21,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:00:21,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219083446] [2022-12-14 12:00:21,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:21,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:21,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:00:21,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 12:00:21,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 12:00:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:22,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 12:00:22,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:00:22,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:22,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:00:22,335 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 12:00:22,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219083446] [2022-12-14 12:00:22,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219083446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:22,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:22,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:00:22,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329303179] [2022-12-14 12:00:22,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:22,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:00:22,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 12:00:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:00:22,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:00:22,366 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:22,382 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2022-12-14 12:00:22,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:00:22,383 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 12:00:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:22,389 INFO L225 Difference]: With dead ends: 118 [2022-12-14 12:00:22,389 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 12:00:22,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:00:22,393 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:22,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:00:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 12:00:22,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-12-14 12:00:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2022-12-14 12:00:22,417 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2022-12-14 12:00:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:22,417 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2022-12-14 12:00:22,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2022-12-14 12:00:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 12:00:22,417 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:22,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:00:22,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:00:22,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:22,620 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:00:22,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:22,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2022-12-14 12:00:22,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:00:22,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660188399] [2022-12-14 12:00:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:22,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:22,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:00:22,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 12:00:22,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 12:00:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:23,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 12:00:23,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:00:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:23,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:00:23,420 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 12:00:23,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660188399] [2022-12-14 12:00:23,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660188399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:23,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:23,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:00:23,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861794585] [2022-12-14 12:00:23,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:23,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:00:23,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 12:00:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:00:23,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:00:23,422 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:24,867 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2022-12-14 12:00:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:00:24,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 12:00:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:24,869 INFO L225 Difference]: With dead ends: 104 [2022-12-14 12:00:24,869 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 12:00:24,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:00:24,871 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 196 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:24,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 62 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 12:00:24,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 12:00:24,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-12-14 12:00:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2022-12-14 12:00:24,884 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2022-12-14 12:00:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:24,884 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2022-12-14 12:00:24,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:24,884 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2022-12-14 12:00:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 12:00:24,885 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:24,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:00:24,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 12:00:25,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:25,086 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:00:25,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:25,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2022-12-14 12:00:25,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:00:25,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636956456] [2022-12-14 12:00:25,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:25,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:25,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:00:25,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 12:00:25,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 12:00:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:25,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 12:00:25,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:00:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:25,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:00:25,800 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 12:00:25,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636956456] [2022-12-14 12:00:25,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636956456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:25,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:25,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:00:25,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636311242] [2022-12-14 12:00:25,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:25,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:00:25,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 12:00:25,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:00:25,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:00:25,802 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:26,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:26,243 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2022-12-14 12:00:26,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:00:26,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 12:00:26,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:26,245 INFO L225 Difference]: With dead ends: 69 [2022-12-14 12:00:26,245 INFO L226 Difference]: Without dead ends: 66 [2022-12-14 12:00:26,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:00:26,247 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 83 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:26,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 182 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:26,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-12-14 12:00:26,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2022-12-14 12:00:26,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:26,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-12-14 12:00:26,257 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2022-12-14 12:00:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:26,257 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-12-14 12:00:26,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:26,257 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-12-14 12:00:26,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 12:00:26,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:26,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:00:26,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-12-14 12:00:26,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:26,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:00:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:26,461 INFO L85 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2022-12-14 12:00:26,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:00:26,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005132508] [2022-12-14 12:00:26,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:26,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:26,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:00:26,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 12:00:26,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 12:00:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:26,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 12:00:26,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:00:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:27,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:00:27,682 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 12:00:27,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005132508] [2022-12-14 12:00:27,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005132508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:27,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:27,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 12:00:27,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310378533] [2022-12-14 12:00:27,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:27,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 12:00:27,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 12:00:27,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 12:00:27,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:00:27,686 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:28,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:28,856 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-12-14 12:00:28,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 12:00:28,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-14 12:00:28,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:28,857 INFO L225 Difference]: With dead ends: 66 [2022-12-14 12:00:28,857 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 12:00:28,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-12-14 12:00:28,858 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 91 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:28,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 424 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 12:00:28,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 12:00:28,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-12-14 12:00:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2022-12-14 12:00:28,867 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2022-12-14 12:00:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:28,867 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2022-12-14 12:00:28,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2022-12-14 12:00:28,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 12:00:28,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:28,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:00:28,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 12:00:29,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:29,071 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:00:29,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:29,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2022-12-14 12:00:29,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:00:29,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784637649] [2022-12-14 12:00:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:29,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 12:00:29,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:00:29,084 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 12:00:29,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 12:00:29,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 139 [2022-12-14 12:00:29,555 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-12-14 12:00:29,557 INFO L158 Benchmark]: Toolchain (without parser) took 18534.80ms. Allocated memory is still 62.9MB. Free memory was 33.0MB in the beginning and 33.3MB in the end (delta: -287.1kB). Peak memory consumption was 999.0kB. Max. memory is 16.1GB. [2022-12-14 12:00:29,558 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 46.1MB. Free memory was 24.9MB in the beginning and 24.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:00:29,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.55ms. Allocated memory is still 62.9MB. Free memory was 32.9MB in the beginning and 34.5MB in the end (delta: -1.6MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-12-14 12:00:29,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.91ms. Allocated memory is still 62.9MB. Free memory was 34.3MB in the beginning and 32.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:00:29,559 INFO L158 Benchmark]: Boogie Preprocessor took 26.55ms. Allocated memory is still 62.9MB. Free memory was 32.0MB in the beginning and 29.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:00:29,559 INFO L158 Benchmark]: RCFGBuilder took 10393.40ms. Allocated memory is still 62.9MB. Free memory was 29.4MB in the beginning and 39.3MB in the end (delta: -10.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-12-14 12:00:29,559 INFO L158 Benchmark]: TraceAbstraction took 7838.88ms. Allocated memory is still 62.9MB. Free memory was 38.5MB in the beginning and 33.3MB in the end (delta: 5.2MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2022-12-14 12:00:29,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 46.1MB. Free memory was 24.9MB in the beginning and 24.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.55ms. Allocated memory is still 62.9MB. Free memory was 32.9MB in the beginning and 34.5MB in the end (delta: -1.6MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.91ms. Allocated memory is still 62.9MB. Free memory was 34.3MB in the beginning and 32.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.55ms. Allocated memory is still 62.9MB. Free memory was 32.0MB in the beginning and 29.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 10393.40ms. Allocated memory is still 62.9MB. Free memory was 29.4MB in the beginning and 39.3MB in the end (delta: -10.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7838.88ms. Allocated memory is still 62.9MB. Free memory was 38.5MB in the beginning and 33.3MB in the end (delta: 5.2MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 12:00:29,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6938b9-d4e6-4e2d-ac4a-ca2b087512fa/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6) with exit command (exit)) Received EOF on stdin. No stderr output.