./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc --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 45357a5e0240095b58abad3d10ee040976002395978a0758aa9a5e9cd37d9633 --- 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-5e519f3 [2022-11-02 19:49:48,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:49:48,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:49:48,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:49:48,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:49:48,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:49:48,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:49:48,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:49:48,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:49:48,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:49:48,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:49:48,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:49:48,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:49:48,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:49:48,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:49:48,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:49:48,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:49:48,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:49:48,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:49:48,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:49:48,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:49:48,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:49:48,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:49:48,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:49:48,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:49:48,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:49:48,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:49:48,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:49:48,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:49:48,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:49:48,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:49:48,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:49:48,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:49:48,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:49:48,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:49:48,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:49:48,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:49:48,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:49:48,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:49:48,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:49:48,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:49:48,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 19:49:48,383 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:49:48,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:49:48,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:49:48,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:49:48,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:49:48,385 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:49:48,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:49:48,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:49:48,386 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:49:48,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:49:48,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:49:48,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 19:49:48,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:49:48,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:49:48,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:49:48,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:49:48,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:49:48,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:49:48,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:49:48,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:49:48,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:49:48,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:49:48,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:49:48,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:49:48,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:49:48,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:49:48,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:49:48,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:49:48,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 19:49:48,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 19:49:48,391 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 19:49:48,391 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 19:49:48,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:49:48,391 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_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45357a5e0240095b58abad3d10ee040976002395978a0758aa9a5e9cd37d9633 [2022-11-02 19:49:48,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:49:48,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:49:48,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:49:48,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:49:48,773 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:49:48,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c [2022-11-02 19:49:48,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data/dac6bea3b/6e18478ca4ff4ff49d77f35307ad1d05/FLAG9f20241e4 [2022-11-02 19:49:49,462 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:49:49,463 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c [2022-11-02 19:49:49,477 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data/dac6bea3b/6e18478ca4ff4ff49d77f35307ad1d05/FLAG9f20241e4 [2022-11-02 19:49:49,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data/dac6bea3b/6e18478ca4ff4ff49d77f35307ad1d05 [2022-11-02 19:49:49,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:49:49,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:49:49,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:49:49,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:49:49,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:49:49,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:49:49" (1/1) ... [2022-11-02 19:49:49,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199df197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:49, skipping insertion in model container [2022-11-02 19:49:49,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:49:49" (1/1) ... [2022-11-02 19:49:49,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:49:49,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:49:50,047 WARN L230 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_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c[1999,2012] [2022-11-02 19:49:50,053 WARN L230 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_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c[2368,2381] [2022-11-02 19:49:50,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:49:50,106 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:49:50,120 WARN L230 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_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c[1999,2012] [2022-11-02 19:49:50,121 WARN L230 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_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c[2368,2381] [2022-11-02 19:49:50,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:49:50,166 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:49:50,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50 WrapperNode [2022-11-02 19:49:50,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:49:50,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:49:50,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:49:50,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:49:50,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,215 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2022-11-02 19:49:50,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:49:50,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:49:50,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:49:50,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:49:50,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,276 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:49:50,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:49:50,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:49:50,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:49:50,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (1/1) ... [2022-11-02 19:49:50,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:49:50,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:49:50,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:49:50,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:49:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:49:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-02 19:49:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-02 19:49:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 19:49:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:49:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:49:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-02 19:49:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-02 19:49:50,515 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:49:50,517 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:49:50,978 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:49:50,992 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:49:50,996 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 19:49:50,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:49:50 BoogieIcfgContainer [2022-11-02 19:49:51,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:49:51,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:49:51,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:49:51,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:49:51,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:49:49" (1/3) ... [2022-11-02 19:49:51,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8e8ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:49:51, skipping insertion in model container [2022-11-02 19:49:51,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:50" (2/3) ... [2022-11-02 19:49:51,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8e8ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:49:51, skipping insertion in model container [2022-11-02 19:49:51,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:49:50" (3/3) ... [2022-11-02 19:49:51,013 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4+soft_float_1-3a.c.cil.c [2022-11-02 19:49:51,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:49:51,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 19:49:51,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:49:51,129 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;@6fb0d586, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:49:51,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 19:49:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-02 19:49:51,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 19:49:51,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:49:51,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:49:51,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 19:49:51,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:49:51,155 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-02 19:49:51,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:49:51,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194393967] [2022-11-02 19:49:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:49:51,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:49:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:49:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:49:51,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:49:51,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194393967] [2022-11-02 19:49:51,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194393967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:49:51,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:49:51,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:49:51,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927532918] [2022-11-02 19:49:51,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:49:51,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 19:49:51,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:49:51,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 19:49:51,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:49:51,405 INFO L87 Difference]: Start difference. First operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-02 19:49:51,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:49:51,465 INFO L93 Difference]: Finished difference Result 157 states and 249 transitions. [2022-11-02 19:49:51,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 19:49:51,467 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-11-02 19:49:51,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:49:51,492 INFO L225 Difference]: With dead ends: 157 [2022-11-02 19:49:51,492 INFO L226 Difference]: Without dead ends: 74 [2022-11-02 19:49:51,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:49:51,504 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 19:49:51,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 19:49:51,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-02 19:49:51,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-02 19:49:51,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 64 states have internal predecessors, (91), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:49:51,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2022-11-02 19:49:51,575 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 7 [2022-11-02 19:49:51,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:49:51,575 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-11-02 19:49:51,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-02 19:49:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2022-11-02 19:49:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 19:49:51,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:49:51,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:49:51,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 19:49:51,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 19:49:51,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:49:51,580 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-02 19:49:51,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:49:51,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279121215] [2022-11-02 19:49:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:49:51,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:49:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 19:49:51,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 19:49:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 19:49:51,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 19:49:51,670 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 19:49:51,672 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-02 19:49:51,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-02 19:49:51,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 19:49:51,679 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 19:49:51,682 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 19:49:51,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 07:49:51 BoogieIcfgContainer [2022-11-02 19:49:51,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 19:49:51,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 19:49:51,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 19:49:51,714 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 19:49:51,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:49:50" (3/4) ... [2022-11-02 19:49:51,719 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 19:49:51,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 19:49:51,720 INFO L158 Benchmark]: Toolchain (without parser) took 1952.73ms. Allocated memory is still 113.2MB. Free memory was 73.4MB in the beginning and 79.5MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 19:49:51,721 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 19:49:51,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.37ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 84.4MB in the end (delta: -11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 19:49:51,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.71ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 82.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 19:49:51,726 INFO L158 Benchmark]: Boogie Preprocessor took 57.18ms. Allocated memory is still 113.2MB. Free memory was 82.2MB in the beginning and 80.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 19:49:51,729 INFO L158 Benchmark]: RCFGBuilder took 719.42ms. Allocated memory is still 113.2MB. Free memory was 80.4MB in the beginning and 61.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-02 19:49:51,729 INFO L158 Benchmark]: TraceAbstraction took 709.17ms. Allocated memory is still 113.2MB. Free memory was 60.7MB in the beginning and 80.1MB in the end (delta: -19.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 19:49:51,729 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 113.2MB. Free memory was 80.1MB in the beginning and 79.5MB in the end (delta: 586.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 19:49:51,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.37ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 84.4MB in the end (delta: -11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.71ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 82.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.18ms. Allocated memory is still 113.2MB. Free memory was 82.2MB in the beginning and 80.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 719.42ms. Allocated memory is still 113.2MB. Free memory was 80.4MB in the beginning and 61.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 709.17ms. Allocated memory is still 113.2MB. Free memory was 60.7MB in the beginning and 80.1MB in the end (delta: -19.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 113.2MB. Free memory was 80.1MB in the beginning and 79.5MB in the end (delta: 586.5kB). 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: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L402] COND TRUE __VERIFIER_nondet_int() [L403] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.39844f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 117 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 19:49:51,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc --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 45357a5e0240095b58abad3d10ee040976002395978a0758aa9a5e9cd37d9633 --- 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-5e519f3 [2022-11-02 19:49:54,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:49:54,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:49:54,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:49:54,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:49:54,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:49:54,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:49:54,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:49:54,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:49:54,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:49:54,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:49:54,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:49:54,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:49:54,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:49:54,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:49:54,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:49:54,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:49:54,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:49:54,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:49:54,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:49:54,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:49:54,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:49:54,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:49:54,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:49:54,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:49:54,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:49:54,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:49:54,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:49:54,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:49:54,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:49:54,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:49:54,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:49:54,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:49:54,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:49:54,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:49:54,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:49:54,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:49:54,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:49:54,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:49:54,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:49:54,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:49:54,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-02 19:49:54,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:49:54,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:49:54,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:49:54,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:49:54,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:49:54,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:49:54,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:49:54,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:49:54,356 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:49:54,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:49:54,357 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:49:54,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:49:54,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:49:54,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:49:54,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:49:54,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:49:54,358 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 19:49:54,358 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 19:49:54,359 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 19:49:54,359 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:49:54,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:49:54,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:49:54,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:49:54,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:49:54,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:49:54,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:49:54,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:49:54,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:49:54,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:49:54,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:49:54,361 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 19:49:54,361 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 19:49:54,362 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 19:49:54,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 19:49:54,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:49:54,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 19:49:54,363 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_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45357a5e0240095b58abad3d10ee040976002395978a0758aa9a5e9cd37d9633 [2022-11-02 19:49:54,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:49:54,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:49:54,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:49:54,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:49:54,769 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:49:54,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c [2022-11-02 19:49:54,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data/561a40c29/433ce46275e34770bae8ad363891dfb4/FLAG38c873f99 [2022-11-02 19:49:55,378 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:49:55,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c [2022-11-02 19:49:55,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data/561a40c29/433ce46275e34770bae8ad363891dfb4/FLAG38c873f99 [2022-11-02 19:49:55,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/data/561a40c29/433ce46275e34770bae8ad363891dfb4 [2022-11-02 19:49:55,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:49:55,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:49:55,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:49:55,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:49:55,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:49:55,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:49:55" (1/1) ... [2022-11-02 19:49:55,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522b21e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:55, skipping insertion in model container [2022-11-02 19:49:55,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:49:55" (1/1) ... [2022-11-02 19:49:55,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:49:55,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:49:55,892 WARN L230 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_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c[1999,2012] [2022-11-02 19:49:55,897 WARN L230 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_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c[2368,2381] [2022-11-02 19:49:55,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:49:55,993 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:49:56,036 WARN L230 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_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c[1999,2012] [2022-11-02 19:49:56,046 WARN L230 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_03b19d16-e9e9-4149-aaff-977002808955/sv-benchmarks/c/combinations/square_4+soft_float_1-3a.c.cil.c[2368,2381] [2022-11-02 19:49:56,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:49:56,112 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:49:56,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56 WrapperNode [2022-11-02 19:49:56,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:49:56,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:49:56,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:49:56,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:49:56,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,201 INFO L138 Inliner]: procedures = 28, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 164 [2022-11-02 19:49:56,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:49:56,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:49:56,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:49:56,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:49:56,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,240 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:49:56,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:49:56,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:49:56,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:49:56,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (1/1) ... [2022-11-02 19:49:56,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:49:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:49:56,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:49:56,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:49:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:49:56,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 19:49:56,366 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-02 19:49:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-02 19:49:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:49:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:49:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-02 19:49:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-02 19:49:56,474 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:49:56,477 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:49:59,112 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:49:59,120 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:49:59,120 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 19:49:59,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:49:59 BoogieIcfgContainer [2022-11-02 19:49:59,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:49:59,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:49:59,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:49:59,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:49:59,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:49:55" (1/3) ... [2022-11-02 19:49:59,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11903327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:49:59, skipping insertion in model container [2022-11-02 19:49:59,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:56" (2/3) ... [2022-11-02 19:49:59,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11903327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:49:59, skipping insertion in model container [2022-11-02 19:49:59,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:49:59" (3/3) ... [2022-11-02 19:49:59,133 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4+soft_float_1-3a.c.cil.c [2022-11-02 19:49:59,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:49:59,154 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 19:49:59,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:49:59,227 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;@2d297bac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:49:59,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 19:49:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-02 19:49:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 19:49:59,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:49:59,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:49:59,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 19:49:59,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:49:59,247 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-02 19:49:59,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 19:49:59,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534823705] [2022-11-02 19:49:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:49:59,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 19:49:59,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 19:49:59,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 19:49:59,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 19:49:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:49:59,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 19:49:59,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:49:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:49:59,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:49:59,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 19:49:59,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534823705] [2022-11-02 19:49:59,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534823705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:49:59,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:49:59,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:49:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244818882] [2022-11-02 19:49:59,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:49:59,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 19:49:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 19:49:59,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 19:49:59,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:49:59,969 INFO L87 Difference]: Start difference. First operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-02 19:50:00,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:50:00,024 INFO L93 Difference]: Finished difference Result 157 states and 249 transitions. [2022-11-02 19:50:00,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 19:50:00,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-11-02 19:50:00,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:50:00,050 INFO L225 Difference]: With dead ends: 157 [2022-11-02 19:50:00,050 INFO L226 Difference]: Without dead ends: 74 [2022-11-02 19:50:00,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:50:00,060 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 19:50:00,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 19:50:00,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-02 19:50:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-02 19:50:00,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 64 states have internal predecessors, (91), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:50:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2022-11-02 19:50:00,131 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 7 [2022-11-02 19:50:00,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:50:00,132 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-11-02 19:50:00,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-02 19:50:00,133 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2022-11-02 19:50:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 19:50:00,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:50:00,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:50:00,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 19:50:00,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 19:50:00,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 19:50:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:50:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-02 19:50:00,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 19:50:00,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673311989] [2022-11-02 19:50:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:50:00,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 19:50:00,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 19:50:00,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 19:50:00,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03b19d16-e9e9-4149-aaff-977002808955/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process