./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW --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 bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 --- 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-4e7fbc6 [2022-11-23 15:52:26,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:52:26,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:52:26,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:52:26,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:52:26,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:52:26,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:52:26,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:52:26,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:52:26,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:52:26,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:52:26,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:52:26,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:52:26,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:52:26,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:52:26,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:52:26,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:52:26,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:52:26,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:52:26,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:52:26,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:52:26,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:52:26,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:52:26,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:52:26,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:52:26,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:52:26,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:52:26,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:52:26,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:52:26,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:52:26,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:52:26,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:52:26,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:52:26,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:52:26,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:52:26,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:52:26,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:52:26,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:52:26,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:52:26,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:52:26,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:52:26,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:52:26,173 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:52:26,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:52:26,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:52:26,174 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:52:26,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:52:26,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:52:26,175 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:52:26,175 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:52:26,175 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:52:26,175 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:52:26,176 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:52:26,176 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:52:26,176 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:52:26,176 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:52:26,176 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:52:26,177 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:52:26,177 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:52:26,177 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:52:26,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:52:26,178 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:52:26,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:52:26,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:52:26,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:52:26,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:52:26,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:52:26,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:52:26,184 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:52:26,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:52:26,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:52:26,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:52:26,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:52:26,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:52:26,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:52:26,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:52:26,187 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:52:26,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:52:26,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:52:26,188 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:52:26,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:52:26,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:52:26,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:52:26,189 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_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 [2022-11-23 15:52:26,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:52:26,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:52:26,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:52:26,565 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:52:26,566 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:52:26,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2022-11-23 15:52:29,720 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:52:29,899 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:52:29,899 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/sv-benchmarks/c/floats-cbmc-regression/float3.c [2022-11-23 15:52:29,905 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/data/a09b012d9/a206ba86fdf447d7af192a67c9071a34/FLAGcaac834c2 [2022-11-23 15:52:29,920 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/data/a09b012d9/a206ba86fdf447d7af192a67c9071a34 [2022-11-23 15:52:29,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:52:29,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:52:29,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:52:29,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:52:29,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:52:29,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:29" (1/1) ... [2022-11-23 15:52:29,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59eb9c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:29, skipping insertion in model container [2022-11-23 15:52:29,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:29" (1/1) ... [2022-11-23 15:52:29,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:52:29,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:52:30,156 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_5d6b561c-a441-4446-ac87-8bc95eb34e51/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2022-11-23 15:52:30,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:52:30,178 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:52:30,191 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_5d6b561c-a441-4446-ac87-8bc95eb34e51/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2022-11-23 15:52:30,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:52:30,204 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:52:30,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30 WrapperNode [2022-11-23 15:52:30,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:52:30,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:52:30,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:52:30,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:52:30,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,239 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2022-11-23 15:52:30,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:52:30,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:52:30,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:52:30,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:52:30,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,270 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:52:30,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:52:30,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:52:30,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:52:30,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (1/1) ... [2022-11-23 15:52:30,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:52:30,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:52:30,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:52:30,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:52:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:52:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:52:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:52:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:52:30,424 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:52:30,426 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:52:30,562 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:52:30,638 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:52:30,641 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:52:30,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:30 BoogieIcfgContainer [2022-11-23 15:52:30,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:52:30,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:52:30,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:52:30,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:52:30,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:52:29" (1/3) ... [2022-11-23 15:52:30,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26476198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:30, skipping insertion in model container [2022-11-23 15:52:30,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:30" (2/3) ... [2022-11-23 15:52:30,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26476198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:30, skipping insertion in model container [2022-11-23 15:52:30,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:30" (3/3) ... [2022-11-23 15:52:30,668 INFO L112 eAbstractionObserver]: Analyzing ICFG float3.c [2022-11-23 15:52:30,706 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:52:30,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:52:30,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:52:30,805 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;@558d726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:52:30,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:52:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 15:52:30,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:30,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 15:52:30,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:52:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:30,832 INFO L85 PathProgramCache]: Analyzing trace with hash 56187, now seen corresponding path program 1 times [2022-11-23 15:52:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:52:30,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775514088] [2022-11-23 15:52:30,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:30,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:52:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:52:30,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:52:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:52:30,993 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:52:30,995 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:52:30,996 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:52:30,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:52:31,003 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:52:31,007 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:52:31,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:52:31 BoogieIcfgContainer [2022-11-23 15:52:31,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:52:31,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:52:31,034 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:52:31,034 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:52:31,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:30" (3/4) ... [2022-11-23 15:52:31,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:52:31,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:52:31,040 INFO L158 Benchmark]: Toolchain (without parser) took 1115.12ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 86.1MB in the end (delta: 21.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-23 15:52:31,041 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:52:31,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.24ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 113.7MB in the end (delta: -6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:52:31,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.83ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 112.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:52:31,043 INFO L158 Benchmark]: Boogie Preprocessor took 31.53ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 111.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:52:31,048 INFO L158 Benchmark]: RCFGBuilder took 385.70ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 100.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:52:31,049 INFO L158 Benchmark]: TraceAbstraction took 370.77ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 86.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:52:31,050 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 86.1MB in the end (delta: 368.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:52:31,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.24ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 113.7MB in the end (delta: -6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.83ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 112.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.53ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 111.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.70ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 100.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 370.77ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 86.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 86.1MB in the end (delta: 368.8kB). 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: 26]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22. Possible FailurePath: [L6] double d = 0.0; [L15] int x = 2; [L17] COND TRUE __VERIFIER_nondet_int() [L18] x = 4 [L20] CALL f1() [L10] d = 1.0 [L20] RET f1() [L22] d += (x == 2) [L24] d += (x > 3) VAL [x=4] [L26] COND TRUE !(d == 2.0) VAL [x=4] [L26] reach_error() VAL [x=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:52:31,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW --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 bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 --- 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-4e7fbc6 [2022-11-23 15:52:33,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:52:33,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:52:33,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:52:33,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:52:33,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:52:33,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:52:33,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:52:33,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:52:33,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:52:33,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:52:33,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:52:33,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:52:33,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:52:33,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:52:33,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:52:33,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:52:33,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:52:33,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:52:33,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:52:33,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:52:33,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:52:33,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:52:33,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:52:33,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:52:33,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:52:33,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:52:33,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:52:33,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:52:33,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:52:33,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:52:33,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:52:33,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:52:33,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:52:33,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:52:33,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:52:33,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:52:33,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:52:33,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:52:33,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:52:33,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:52:33,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 15:52:33,731 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:52:33,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:52:33,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:52:33,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:52:33,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:52:33,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:52:33,733 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:52:33,734 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:52:33,734 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:52:33,734 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:52:33,735 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:52:33,735 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:52:33,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:52:33,736 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:52:33,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:52:33,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:52:33,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:52:33,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:52:33,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:52:33,738 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:52:33,738 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:52:33,738 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:52:33,738 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:52:33,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:52:33,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:52:33,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:52:33,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:52:33,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:52:33,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:52:33,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:52:33,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:52:33,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:52:33,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:52:33,741 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:52:33,741 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:52:33,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:52:33,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:52:33,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:52:33,742 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_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 [2022-11-23 15:52:34,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:52:34,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:52:34,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:52:34,157 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:52:34,157 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:52:34,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2022-11-23 15:52:37,284 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:52:37,478 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:52:37,479 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/sv-benchmarks/c/floats-cbmc-regression/float3.c [2022-11-23 15:52:37,486 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/data/5ebf4aca3/a5c03233a3cf4a68b41ad9b7bdc3a555/FLAGdcd923ebb [2022-11-23 15:52:37,498 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/data/5ebf4aca3/a5c03233a3cf4a68b41ad9b7bdc3a555 [2022-11-23 15:52:37,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:52:37,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:52:37,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:52:37,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:52:37,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:52:37,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383e4087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37, skipping insertion in model container [2022-11-23 15:52:37,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:52:37,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:52:37,699 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_5d6b561c-a441-4446-ac87-8bc95eb34e51/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2022-11-23 15:52:37,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:52:37,728 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:52:37,750 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_5d6b561c-a441-4446-ac87-8bc95eb34e51/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2022-11-23 15:52:37,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:52:37,770 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:52:37,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37 WrapperNode [2022-11-23 15:52:37,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:52:37,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:52:37,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:52:37,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:52:37,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,807 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2022-11-23 15:52:37,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:52:37,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:52:37,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:52:37,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:52:37,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,841 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:52:37,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:52:37,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:52:37,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:52:37,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (1/1) ... [2022-11-23 15:52:37,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:52:37,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:52:37,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:52:37,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:52:37,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:52:37,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:52:37,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:52:37,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:52:38,014 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:52:38,016 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:52:38,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:52:38,998 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:52:38,998 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:52:39,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:39 BoogieIcfgContainer [2022-11-23 15:52:39,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:52:39,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:52:39,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:52:39,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:52:39,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:52:37" (1/3) ... [2022-11-23 15:52:39,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee9b1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:39, skipping insertion in model container [2022-11-23 15:52:39,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:37" (2/3) ... [2022-11-23 15:52:39,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee9b1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:39, skipping insertion in model container [2022-11-23 15:52:39,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:39" (3/3) ... [2022-11-23 15:52:39,011 INFO L112 eAbstractionObserver]: Analyzing ICFG float3.c [2022-11-23 15:52:39,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:52:39,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:52:39,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:52:39,088 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;@54b89e10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:52:39,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:52:39,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:52:39,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:39,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:52:39,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:52:39,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:39,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2022-11-23 15:52:39,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:52:39,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745893079] [2022-11-23 15:52:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:39,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:52:39,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:52:39,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:52:39,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:52:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:39,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:52:39,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:52:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:52:39,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:52:39,717 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:52:39,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745893079] [2022-11-23 15:52:39,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745893079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:39,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:52:39,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:52:39,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769203016] [2022-11-23 15:52:39,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:39,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:52:39,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:52:39,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:52:39,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:52:39,755 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:41,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:52:41,394 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-23 15:52:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:52:41,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2022-11-23 15:52:41,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:52:41,406 INFO L225 Difference]: With dead ends: 22 [2022-11-23 15:52:41,406 INFO L226 Difference]: Without dead ends: 8 [2022-11-23 15:52:41,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:52:41,413 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:52:41,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 15:52:41,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-23 15:52:41,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-23 15:52:41,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2022-11-23 15:52:41,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2022-11-23 15:52:41,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:52:41,452 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2022-11-23 15:52:41,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:41,453 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-11-23 15:52:41,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:52:41,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:41,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:52:41,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 15:52:41,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:52:41,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:52:41,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:41,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812423, now seen corresponding path program 1 times [2022-11-23 15:52:41,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:52:41,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371398262] [2022-11-23 15:52:41,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:41,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:52:41,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:52:41,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:52:41,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:52:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:41,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:52:41,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:52:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:52:42,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:52:42,156 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:52:42,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371398262] [2022-11-23 15:52:42,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371398262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:42,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:52:42,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:52:42,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613792640] [2022-11-23 15:52:42,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:42,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:52:42,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:52:42,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:52:42,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:52:42,160 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:42,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:52:42,625 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-11-23 15:52:42,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:52:42,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2022-11-23 15:52:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:52:42,626 INFO L225 Difference]: With dead ends: 8 [2022-11-23 15:52:42,626 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:52:42,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:52:42,628 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:52:42,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:52:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:52:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:52:42,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:52:42,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-11-23 15:52:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:52:42,631 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:52:42,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:42,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:52:42,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:52:42,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:52:42,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:52:42,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:52:42,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:52:42,855 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:52:42,855 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 15:52:42,855 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 15:52:42,855 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 15:52:42,855 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-23 15:52:42,855 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-23 15:52:42,856 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2022-11-23 15:52:42,856 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2022-11-23 15:52:42,856 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 18) no Hoare annotation was computed. [2022-11-23 15:52:42,856 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 27) no Hoare annotation was computed. [2022-11-23 15:52:42,856 INFO L899 garLoopResultBuilder]: For program point L8(lines 8 11) no Hoare annotation was computed. [2022-11-23 15:52:42,860 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:52:42,862 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:52:42,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:52:42 BoogieIcfgContainer [2022-11-23 15:52:42,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:52:42,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:52:42,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:52:42,868 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:52:42,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:39" (3/4) ... [2022-11-23 15:52:42,872 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:52:42,882 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 15:52:42,882 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 15:52:42,883 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 15:52:42,883 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:52:42,912 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:52:42,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:52:42,913 INFO L158 Benchmark]: Toolchain (without parser) took 5411.67ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 49.6MB in the beginning and 52.8MB in the end (delta: -3.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-11-23 15:52:42,914 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 73.4MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:52:42,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.09ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 38.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:52:42,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.96ms. Allocated memory is still 73.4MB. Free memory was 38.8MB in the beginning and 37.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:52:42,915 INFO L158 Benchmark]: Boogie Preprocessor took 35.49ms. Allocated memory is still 73.4MB. Free memory was 37.3MB in the beginning and 36.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:52:42,916 INFO L158 Benchmark]: RCFGBuilder took 1155.77ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 36.1MB in the beginning and 66.6MB in the end (delta: -30.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 15:52:42,916 INFO L158 Benchmark]: TraceAbstraction took 3863.06ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 55.2MB in the end (delta: 10.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-11-23 15:52:42,917 INFO L158 Benchmark]: Witness Printer took 44.88ms. Allocated memory is still 90.2MB. Free memory was 55.2MB in the beginning and 52.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:52:42,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 73.4MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.09ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 38.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.96ms. Allocated memory is still 73.4MB. Free memory was 38.8MB in the beginning and 37.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.49ms. Allocated memory is still 73.4MB. Free memory was 37.3MB in the beginning and 36.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1155.77ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 36.1MB in the beginning and 66.6MB in the end (delta: -30.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3863.06ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 55.2MB in the end (delta: 10.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Witness Printer took 44.88ms. Allocated memory is still 90.2MB. Free memory was 55.2MB in the beginning and 52.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 10 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 6 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 15:52:42,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d6b561c-a441-4446-ac87-8bc95eb34e51/bin/utaipan-Q6hlc19bkW/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 Writing output log to file Ultimate.log Result: TRUE