./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:22:11,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:22:11,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:22:11,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:22:11,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:22:11,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:22:11,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:22:11,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:22:11,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:22:11,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:22:11,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:22:11,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:22:11,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:22:11,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:22:11,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:22:11,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:22:11,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:22:11,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:22:11,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:22:11,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:22:11,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:22:11,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:22:11,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:22:11,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:22:11,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:22:11,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:22:11,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:22:11,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:22:11,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:22:11,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:22:11,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:22:11,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:22:11,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:22:11,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:22:11,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:22:11,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:22:11,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:22:11,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:22:11,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:22:11,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:22:11,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:22:11,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:22:11,237 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:22:11,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:22:11,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:22:11,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:22:11,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:22:11,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:22:11,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:22:11,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:22:11,239 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:22:11,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:22:11,239 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:22:11,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:22:11,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:22:11,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:22:11,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:22:11,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:22:11,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:22:11,240 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:22:11,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:22:11,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:22:11,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:22:11,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:22:11,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:22:11,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:22:11,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:22:11,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:22:11,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:22:11,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:22:11,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:22:11,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:22:11,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:22:11,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:22:11,243 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:22:11,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:22:11,243 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:22:11,243 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2022-12-13 11:22:11,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:22:11,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:22:11,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:22:11,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:22:11,440 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:22:11,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-12-13 11:22:14,114 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:22:14,273 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:22:14,273 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-12-13 11:22:14,279 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/data/28c17259c/cd62ceefcc8446d99909975bf8e0a7a3/FLAGd2a335d45 [2022-12-13 11:22:14,293 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/data/28c17259c/cd62ceefcc8446d99909975bf8e0a7a3 [2022-12-13 11:22:14,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:22:14,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:22:14,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:22:14,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:22:14,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:22:14,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7beac30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14, skipping insertion in model container [2022-12-13 11:22:14,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:22:14,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:22:14,450 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_458dca08-0158-49f0-8107-520521f43fd4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-12-13 11:22:14,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:22:14,466 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:22:14,480 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_458dca08-0158-49f0-8107-520521f43fd4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-12-13 11:22:14,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:22:14,493 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:22:14,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14 WrapperNode [2022-12-13 11:22:14,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:22:14,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:22:14,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:22:14,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:22:14,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,524 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-12-13 11:22:14,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:22:14,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:22:14,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:22:14,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:22:14,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:22:14,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:22:14,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:22:14,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:22:14,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (1/1) ... [2022-12-13 11:22:14,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:22:14,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:22:14,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:22:14,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:22:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:22:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:22:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:22:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:22:14,659 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:22:14,661 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:22:14,716 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:22:14,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:22:14,722 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:22:14,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:22:14 BoogieIcfgContainer [2022-12-13 11:22:14,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:22:14,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:22:14,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:22:14,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:22:14,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:22:14" (1/3) ... [2022-12-13 11:22:14,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24507925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:22:14, skipping insertion in model container [2022-12-13 11:22:14,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:14" (2/3) ... [2022-12-13 11:22:14,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24507925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:22:14, skipping insertion in model container [2022-12-13 11:22:14,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:22:14" (3/3) ... [2022-12-13 11:22:14,734 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2022-12-13 11:22:14,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:22:14,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:22:14,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:22:14,797 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b95b537, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:22:14,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:22:14,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:22:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 11:22:14,805 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:22:14,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 11:22:14,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:22:14,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:22:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-12-13 11:22:14,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:22:14,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378392274] [2022-12-13 11:22:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:22:14,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:22:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:22:14,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:22:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:22:14,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:22:14,910 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:22:14,911 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:22:14,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:22:14,916 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:22:14,919 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:22:14,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:22:14 BoogieIcfgContainer [2022-12-13 11:22:14,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:22:14,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:22:14,931 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:22:14,931 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:22:14,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:22:14" (3/4) ... [2022-12-13 11:22:14,935 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:22:14,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:22:14,936 INFO L158 Benchmark]: Toolchain (without parser) took 638.86ms. Allocated memory is still 144.7MB. Free memory was 109.8MB in the beginning and 76.3MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 11:22:14,936 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:22:14,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.84ms. Allocated memory is still 144.7MB. Free memory was 109.8MB in the beginning and 100.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 11:22:14,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.83ms. Allocated memory is still 144.7MB. Free memory was 100.3MB in the beginning and 98.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:22:14,938 INFO L158 Benchmark]: Boogie Preprocessor took 17.01ms. Allocated memory is still 144.7MB. Free memory was 98.9MB in the beginning and 97.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:22:14,938 INFO L158 Benchmark]: RCFGBuilder took 181.30ms. Allocated memory is still 144.7MB. Free memory was 97.8MB in the beginning and 89.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 11:22:14,939 INFO L158 Benchmark]: TraceAbstraction took 203.27ms. Allocated memory is still 144.7MB. Free memory was 88.9MB in the beginning and 76.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:22:14,939 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 144.7MB. Free memory was 76.3MB in the beginning and 76.3MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:22:14,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.84ms. Allocated memory is still 144.7MB. Free memory was 109.8MB in the beginning and 100.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.83ms. Allocated memory is still 144.7MB. Free memory was 100.3MB in the beginning and 98.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.01ms. Allocated memory is still 144.7MB. Free memory was 98.9MB in the beginning and 97.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 181.30ms. Allocated memory is still 144.7MB. Free memory was 97.8MB in the beginning and 89.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 203.27ms. Allocated memory is still 144.7MB. Free memory was 88.9MB in the beginning and 76.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 144.7MB. Free memory was 76.3MB in the beginning and 76.3MB in the end (delta: 2.6kB). 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: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=8occurred 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, 4 NumberOfCodeBlocks, 4 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 [2022-12-13 11:22:14,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/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_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:22:16,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:22:16,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:22:16,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:22:16,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:22:16,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:22:16,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:22:16,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:22:16,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:22:16,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:22:16,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:22:16,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:22:16,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:22:16,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:22:16,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:22:16,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:22:16,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:22:16,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:22:16,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:22:16,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:22:16,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:22:16,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:22:16,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:22:16,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:22:16,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:22:16,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:22:16,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:22:16,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:22:16,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:22:16,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:22:16,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:22:16,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:22:16,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:22:16,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:22:16,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:22:16,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:22:16,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:22:16,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:22:16,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:22:16,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:22:16,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:22:16,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 11:22:16,543 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:22:16,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:22:16,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:22:16,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:22:16,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:22:16,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:22:16,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:22:16,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:22:16,544 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:22:16,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:22:16,545 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:22:16,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:22:16,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:22:16,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:22:16,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:22:16,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:22:16,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:22:16,546 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:22:16,546 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:22:16,546 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:22:16,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:22:16,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:22:16,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:22:16,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:22:16,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:22:16,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:22:16,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:22:16,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:22:16,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:22:16,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:22:16,547 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:22:16,547 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:22:16,547 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:22:16,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:22:16,548 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:22:16,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:22:16,548 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:22:16,548 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:22:16,548 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2022-12-13 11:22:16,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:22:16,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:22:16,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:22:16,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:22:16,779 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:22:16,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-12-13 11:22:19,392 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:22:19,538 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:22:19,538 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-12-13 11:22:19,545 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/data/5da45297a/8397ca75250141429e646876c702e2b6/FLAGb26e9e6c8 [2022-12-13 11:22:19,560 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/data/5da45297a/8397ca75250141429e646876c702e2b6 [2022-12-13 11:22:19,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:22:19,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:22:19,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:22:19,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:22:19,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:22:19,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6dabb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19, skipping insertion in model container [2022-12-13 11:22:19,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:22:19,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:22:19,706 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_458dca08-0158-49f0-8107-520521f43fd4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-12-13 11:22:19,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:22:19,722 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:22:19,741 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_458dca08-0158-49f0-8107-520521f43fd4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-12-13 11:22:19,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:22:19,756 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:22:19,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19 WrapperNode [2022-12-13 11:22:19,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:22:19,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:22:19,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:22:19,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:22:19,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,790 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-12-13 11:22:19,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:22:19,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:22:19,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:22:19,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:22:19,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:22:19,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:22:19,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:22:19,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:22:19,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (1/1) ... [2022-12-13 11:22:19,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:22:19,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:22:19,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:22:19,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:22:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:22:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:22:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:22:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:22:19,931 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:22:19,932 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:22:20,037 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:22:20,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:22:20,042 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:22:20,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:22:20 BoogieIcfgContainer [2022-12-13 11:22:20,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:22:20,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:22:20,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:22:20,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:22:20,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:22:19" (1/3) ... [2022-12-13 11:22:20,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de81c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:22:20, skipping insertion in model container [2022-12-13 11:22:20,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:22:19" (2/3) ... [2022-12-13 11:22:20,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de81c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:22:20, skipping insertion in model container [2022-12-13 11:22:20,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:22:20" (3/3) ... [2022-12-13 11:22:20,050 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2022-12-13 11:22:20,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:22:20,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:22:20,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:22:20,103 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7aa49113, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:22:20,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:22:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:22:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 11:22:20,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:22:20,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 11:22:20,112 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:22:20,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:22:20,116 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-12-13 11:22:20,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:22:20,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624481992] [2022-12-13 11:22:20,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:22:20,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:22:20,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:22:20,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:22:20,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 11:22:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:22:20,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:22:20,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:22:20,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:22:20,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:22:20,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:22:20,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624481992] [2022-12-13 11:22:20,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624481992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:22:20,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:22:20,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:22:20,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345440301] [2022-12-13 11:22:20,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:22:20,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:22:20,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:22:20,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:22:20,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:22:20,352 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:22:20,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:22:20,415 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-12-13 11:22:20,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:22:20,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-12-13 11:22:20,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:22:20,425 INFO L225 Difference]: With dead ends: 11 [2022-12-13 11:22:20,425 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 11:22:20,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:22:20,431 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:22:20,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:22:20,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 11:22:20,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 11:22:20,454 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) [2022-12-13 11:22:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 11:22:20,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-12-13 11:22:20,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:22:20,456 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 11:22:20,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:22:20,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 11:22:20,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 11:22:20,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:22:20,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:22:20,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:22:20,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 11:22:20,675 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 11:22:20,676 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 11:22:20,676 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 11:22:20,677 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2022-12-13 11:22:20,677 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-12-13 11:22:20,678 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 11:22:20,678 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-12-13 11:22:20,678 INFO L899 garLoopResultBuilder]: For program point L5(lines 5 11) no Hoare annotation was computed. [2022-12-13 11:22:20,687 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:22:20,695 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:22:20,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:22:20 BoogieIcfgContainer [2022-12-13 11:22:20,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:22:20,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:22:20,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:22:20,709 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:22:20,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:22:20" (3/4) ... [2022-12-13 11:22:20,717 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:22:20,735 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 11:22:20,735 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 11:22:20,735 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:22:20,735 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:22:20,762 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:22:20,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:22:20,762 INFO L158 Benchmark]: Toolchain (without parser) took 1198.29ms. Allocated memory is still 71.3MB. Free memory was 46.5MB in the beginning and 50.5MB in the end (delta: -4.0MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-12-13 11:22:20,763 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:22:20,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.74ms. Allocated memory is still 71.3MB. Free memory was 46.4MB in the beginning and 51.9MB in the end (delta: -5.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-12-13 11:22:20,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.14ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 50.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:22:20,770 INFO L158 Benchmark]: Boogie Preprocessor took 22.09ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 49.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:22:20,770 INFO L158 Benchmark]: RCFGBuilder took 230.08ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 40.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 11:22:20,771 INFO L158 Benchmark]: TraceAbstraction took 661.04ms. Allocated memory is still 71.3MB. Free memory was 39.8MB in the beginning and 40.8MB in the end (delta: -1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:22:20,771 INFO L158 Benchmark]: Witness Printer took 53.94ms. Allocated memory is still 71.3MB. Free memory was 40.8MB in the beginning and 50.5MB in the end (delta: -9.7MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-12-13 11:22:20,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.74ms. Allocated memory is still 71.3MB. Free memory was 46.4MB in the beginning and 51.9MB in the end (delta: -5.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.14ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 50.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.09ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 49.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 230.08ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 40.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 661.04ms. Allocated memory is still 71.3MB. Free memory was 39.8MB in the beginning and 40.8MB in the end (delta: -1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 53.94ms. Allocated memory is still 71.3MB. Free memory was 40.8MB in the beginning and 50.5MB in the end (delta: -9.7MB). Peak memory consumption was 2.4MB. 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: 10]: 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, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 3 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:22:20,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_458dca08-0158-49f0-8107-520521f43fd4/bin/uautomizer-uyxdKDjOR8/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