./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8 --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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- 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-e04fb08 [2022-11-16 12:22:44,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:22:44,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:22:44,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:22:44,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:22:44,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:22:44,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:22:44,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:22:44,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:22:44,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:22:44,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:22:44,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:22:44,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:22:44,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:22:44,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:22:44,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:22:44,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:22:44,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:22:44,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:22:44,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:22:45,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:22:45,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:22:45,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:22:45,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:22:45,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:22:45,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:22:45,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:22:45,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:22:45,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:22:45,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:22:45,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:22:45,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:22:45,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:22:45,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:22:45,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:22:45,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:22:45,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:22:45,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:22:45,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:22:45,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:22:45,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:22:45,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:22:45,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:22:45,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:22:45,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:22:45,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:22:45,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:22:45,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:22:45,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:22:45,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:22:45,069 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:22:45,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:22:45,070 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:22:45,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:22:45,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:22:45,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:22:45,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:22:45,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:22:45,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:22:45,076 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:22:45,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:22:45,076 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:22:45,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:22:45,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:22:45,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:22:45,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:22:45,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:22:45,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:22:45,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:22:45,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:22:45,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:22:45,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:22:45,090 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:22:45,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:22:45,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:22:45,091 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_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-11-16 12:22:45,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:22:45,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:22:45,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:22:45,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:22:45,423 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:22:45,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-11-16 12:22:45,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data/a892ca3c6/b2e266517a304198b248f0e063f7b14b/FLAG392f3ec05 [2022-11-16 12:22:46,010 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:22:46,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-11-16 12:22:46,019 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data/a892ca3c6/b2e266517a304198b248f0e063f7b14b/FLAG392f3ec05 [2022-11-16 12:22:46,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data/a892ca3c6/b2e266517a304198b248f0e063f7b14b [2022-11-16 12:22:46,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:22:46,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:22:46,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:22:46,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:22:46,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:22:46,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d70e8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46, skipping insertion in model container [2022-11-16 12:22:46,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:22:46,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:22:46,601 WARN L229 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_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-11-16 12:22:46,606 WARN L229 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_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-11-16 12:22:46,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:46,665 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:22:46,689 WARN L229 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_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-11-16 12:22:46,690 WARN L229 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_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-11-16 12:22:46,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:46,735 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:22:46,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46 WrapperNode [2022-11-16 12:22:46,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:22:46,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:22:46,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:22:46,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:22:46,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,794 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 175 [2022-11-16 12:22:46,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:22:46,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:22:46,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:22:46,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:22:46,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,833 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:22:46,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:22:46,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:22:46,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:22:46,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (1/1) ... [2022-11-16 12:22:46,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:22:46,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:22:46,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:22:46,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:22:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:22:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-16 12:22:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-16 12:22:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:22:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:22:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:22:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:22:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:22:47,018 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:22:47,020 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:22:47,552 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:22:47,559 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:22:47,567 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:22:47,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:47 BoogieIcfgContainer [2022-11-16 12:22:47,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:22:47,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:22:47,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:22:47,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:22:47,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:22:46" (1/3) ... [2022-11-16 12:22:47,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7591361b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:47, skipping insertion in model container [2022-11-16 12:22:47,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:46" (2/3) ... [2022-11-16 12:22:47,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7591361b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:47, skipping insertion in model container [2022-11-16 12:22:47,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:47" (3/3) ... [2022-11-16 12:22:47,580 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-11-16 12:22:47,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:22:47,602 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:22:47,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:22:47,721 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;@6fbab6b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:22:47,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 12:22:47,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 71 states have (on average 1.619718309859155) internal successors, (115), 74 states have internal predecessors, (115), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-16 12:22:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 12:22:47,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:47,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:47,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:47,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:47,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1847035396, now seen corresponding path program 1 times [2022-11-16 12:22:47,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:47,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083988752] [2022-11-16 12:22:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:47,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:47,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:47,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083988752] [2022-11-16 12:22:47,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083988752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:47,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:47,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:22:47,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629268244] [2022-11-16 12:22:47,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:47,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:22:47,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:22:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:22:48,004 INFO L87 Difference]: Start difference. First operand has 81 states, 71 states have (on average 1.619718309859155) internal successors, (115), 74 states have internal predecessors, (115), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2022-11-16 12:22:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:48,073 INFO L93 Difference]: Finished difference Result 157 states and 247 transitions. [2022-11-16 12:22:48,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:22:48,075 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 [2022-11-16 12:22:48,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:48,090 INFO L225 Difference]: With dead ends: 157 [2022-11-16 12:22:48,090 INFO L226 Difference]: Without dead ends: 72 [2022-11-16 12:22:48,095 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 [2022-11-16 12:22:48,101 INFO L413 NwaCegarLoop]: 116 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, 116 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 [2022-11-16 12:22:48,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:22:48,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-16 12:22:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-16 12:22:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 64 states have (on average 1.5) internal successors, (96), 65 states have internal predecessors, (96), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 12:22:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2022-11-16 12:22:48,164 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 7 [2022-11-16 12:22:48,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:48,165 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2022-11-16 12:22:48,165 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) [2022-11-16 12:22:48,165 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2022-11-16 12:22:48,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 12:22:48,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:48,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:48,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:22:48,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:48,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1846975814, now seen corresponding path program 1 times [2022-11-16 12:22:48,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:48,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344523279] [2022-11-16 12:22:48,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:48,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:22:48,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:22:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:22:48,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:22:48,259 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:22:48,261 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-16 12:22:48,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-16 12:22:48,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:22:48,269 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 12:22:48,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:22:48,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:22:48 BoogieIcfgContainer [2022-11-16 12:22:48,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:22:48,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:22:48,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:22:48,307 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:22:48,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:47" (3/4) ... [2022-11-16 12:22:48,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:22:48,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:22:48,314 INFO L158 Benchmark]: Toolchain (without parser) took 1958.92ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 47.5MB in the beginning and 68.9MB in the end (delta: -21.3MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-16 12:22:48,314 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 90.2MB. Free memory was 63.9MB in the beginning and 63.9MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:22:48,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.59ms. Allocated memory is still 90.2MB. Free memory was 47.3MB in the beginning and 62.3MB in the end (delta: -15.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:22:48,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.62ms. Allocated memory is still 90.2MB. Free memory was 62.1MB in the beginning and 60.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:22:48,321 INFO L158 Benchmark]: Boogie Preprocessor took 57.45ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 58.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:22:48,322 INFO L158 Benchmark]: RCFGBuilder took 715.94ms. Allocated memory is still 90.2MB. Free memory was 58.3MB in the beginning and 38.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 12:22:48,322 INFO L158 Benchmark]: TraceAbstraction took 733.30ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 37.7MB in the beginning and 69.5MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:22:48,323 INFO L158 Benchmark]: Witness Printer took 5.65ms. Allocated memory is still 113.2MB. Free memory was 69.5MB in the beginning and 68.9MB in the end (delta: 628.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:22:48,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 90.2MB. Free memory was 63.9MB in the beginning and 63.9MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.59ms. Allocated memory is still 90.2MB. Free memory was 47.3MB in the beginning and 62.3MB in the end (delta: -15.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.62ms. Allocated memory is still 90.2MB. Free memory was 62.1MB in the beginning and 60.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.45ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 58.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 715.94ms. Allocated memory is still 90.2MB. Free memory was 58.3MB in the beginning and 38.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 733.30ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 37.7MB in the beginning and 69.5MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.65ms. Allocated memory is still 113.2MB. Free memory was 69.5MB in the beginning and 68.9MB in the end (delta: 628.5kB). 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: [L322] COND TRUE __VERIFIER_nondet_int() [L323] 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 < 1.39843f) 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: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 116 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, 116 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 [2022-11-16 12:22:48,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/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_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8 --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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- 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-e04fb08 [2022-11-16 12:22:50,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:22:50,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:22:50,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:22:50,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:22:50,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:22:50,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:22:50,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:22:50,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:22:50,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:22:50,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:22:50,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:22:50,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:22:50,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:22:50,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:22:50,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:22:50,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:22:50,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:22:50,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:22:50,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:22:50,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:22:50,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:22:50,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:22:50,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:22:50,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:22:50,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:22:50,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:22:50,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:22:50,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:22:50,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:22:50,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:22:50,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:22:50,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:22:50,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:22:50,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:22:50,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:22:50,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:22:50,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:22:50,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:22:50,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:22:50,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:22:50,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 12:22:50,783 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:22:50,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:22:50,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:22:50,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:22:50,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:22:50,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:22:50,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:22:50,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:22:50,787 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:22:50,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:22:50,788 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:22:50,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:22:50,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:22:50,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:22:50,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:22:50,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:22:50,789 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:22:50,790 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:22:50,790 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:22:50,790 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:22:50,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:22:50,791 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:22:50,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:22:50,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:22:50,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:22:50,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:22:50,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:22:50,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:22:50,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:22:50,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:22:50,794 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:22:50,794 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:22:50,795 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:22:50,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:22:50,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:22:50,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:22:50,796 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_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-11-16 12:22:51,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:22:51,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:22:51,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:22:51,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:22:51,233 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:22:51,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-11-16 12:22:51,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data/807400ac3/2402797154194be6a4fa5f190e676beb/FLAGb50ceb0ea [2022-11-16 12:22:51,866 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:22:51,867 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-11-16 12:22:51,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data/807400ac3/2402797154194be6a4fa5f190e676beb/FLAGb50ceb0ea [2022-11-16 12:22:52,201 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/data/807400ac3/2402797154194be6a4fa5f190e676beb [2022-11-16 12:22:52,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:22:52,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:22:52,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:22:52,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:22:52,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:22:52,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ab08e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52, skipping insertion in model container [2022-11-16 12:22:52,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:22:52,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:22:52,489 WARN L229 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_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-11-16 12:22:52,496 WARN L229 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_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-11-16 12:22:52,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:52,600 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:22:52,620 WARN L229 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_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-11-16 12:22:52,621 WARN L229 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_e5f70819-d335-4359-8997-f244ef750829/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-11-16 12:22:52,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:22:52,697 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:22:52,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52 WrapperNode [2022-11-16 12:22:52,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:22:52,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:22:52,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:22:52,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:22:52,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,765 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-16 12:22:52,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:22:52,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:22:52,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:22:52,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:22:52,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,803 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:22:52,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:22:52,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:22:52,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:22:52,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (1/1) ... [2022-11-16 12:22:52,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:22:52,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:22:52,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:22:52,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:22:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:22:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:22:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-16 12:22:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-16 12:22:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:22:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:22:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:22:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:22:52,988 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:22:52,990 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:22:55,705 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:22:55,713 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:22:55,713 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:22:55,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:55 BoogieIcfgContainer [2022-11-16 12:22:55,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:22:55,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:22:55,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:22:55,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:22:55,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:22:52" (1/3) ... [2022-11-16 12:22:55,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31087683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:55, skipping insertion in model container [2022-11-16 12:22:55,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:22:52" (2/3) ... [2022-11-16 12:22:55,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31087683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:22:55, skipping insertion in model container [2022-11-16 12:22:55,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:55" (3/3) ... [2022-11-16 12:22:55,725 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-11-16 12:22:55,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:22:55,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:22:55,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:22:55,800 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;@6923e86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:22:55,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 12:22:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-16 12:22:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 12:22:55,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:55,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:55,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:55,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:55,819 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-16 12:22:55,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:22:55,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832198210] [2022-11-16 12:22:55,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:55,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:22:55,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:22:55,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:22:55,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:22:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:56,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:22:56,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:22:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:56,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:22:56,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:22:56,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832198210] [2022-11-16 12:22:56,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832198210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:56,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:56,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:22:56,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153425623] [2022-11-16 12:22:56,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:56,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:22:56,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:22:56,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:22:56,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:22:56,543 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2022-11-16 12:22:56,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:56,582 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-11-16 12:22:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:22:56,584 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 [2022-11-16 12:22:56,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:56,593 INFO L225 Difference]: With dead ends: 117 [2022-11-16 12:22:56,593 INFO L226 Difference]: Without dead ends: 52 [2022-11-16 12:22:56,597 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 [2022-11-16 12:22:56,601 INFO L413 NwaCegarLoop]: 82 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, 82 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 [2022-11-16 12:22:56,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:22:56,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-16 12:22:56,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-16 12:22:56,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 12:22:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-11-16 12:22:56,640 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-11-16 12:22:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:56,641 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-11-16 12:22:56,641 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) [2022-11-16 12:22:56,642 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-11-16 12:22:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 12:22:56,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:56,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:56,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-16 12:22:56,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:22:56,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:56,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:56,846 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-16 12:22:56,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:22:56,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963736570] [2022-11-16 12:22:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:56,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:22:56,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:22:56,859 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:22:56,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:34:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:34:05,782 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:34:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:34:52,532 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 12:34:52,533 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:34:52,535 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-16 12:34:52,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-16 12:34:52,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:34:52,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:34:52,746 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 12:34:52,751 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:34:52,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:34:52 BoogieIcfgContainer [2022-11-16 12:34:52,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:34:52,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:34:52,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:34:52,778 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:34:52,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:22:55" (3/4) ... [2022-11-16 12:34:52,781 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 12:34:52,820 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:34:52,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:34:52,821 INFO L158 Benchmark]: Toolchain (without parser) took 720613.94ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 41.0MB in the beginning and 59.6MB in the end (delta: -18.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:34:52,822 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 60.8MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:34:52,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.37ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 40.9MB in the end (delta: -111.6kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:34:52,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.67ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 39.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:34:52,824 INFO L158 Benchmark]: Boogie Preprocessor took 44.52ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 37.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:34:52,824 INFO L158 Benchmark]: RCFGBuilder took 2904.16ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 37.1MB in the beginning and 61.5MB in the end (delta: -24.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-11-16 12:34:52,825 INFO L158 Benchmark]: TraceAbstraction took 717058.28ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 61.2MB in the end (delta: -124.2kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2022-11-16 12:34:52,825 INFO L158 Benchmark]: Witness Printer took 42.81ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:34:52,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 60.8MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.37ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 40.9MB in the end (delta: -111.6kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.67ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 39.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.52ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 37.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2904.16ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 37.1MB in the beginning and 61.5MB in the end (delta: -24.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 717058.28ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 61.2MB in the end (delta: -124.2kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. * Witness Printer took 42.81ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.6MB). 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] 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=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] [L48] reach_error() VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] - 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, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 717.0s, 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, 82 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, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 669.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2022-11-16 12:34:52,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f70819-d335-4359-8997-f244ef750829/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE