./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa --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 0cdac738a6686958f2bf9395cbd2de35d90af6cad794e5c654284b73ac8b3868 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:36:08,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:36:08,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:36:08,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:36:08,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:36:08,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:36:08,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:36:08,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:36:08,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:36:08,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:36:08,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:36:08,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:36:08,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:36:08,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:36:08,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:36:08,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:36:08,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:36:08,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:36:08,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:36:08,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:36:08,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:36:08,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:36:08,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:36:08,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:36:08,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:36:08,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:36:08,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:36:08,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:36:08,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:36:08,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:36:08,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:36:08,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:36:08,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:36:08,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:36:08,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:36:08,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:36:08,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:36:08,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:36:08,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:36:08,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:36:08,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:36:08,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:36:08,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:36:08,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:36:08,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:36:08,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:36:08,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:36:08,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:36:08,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:36:08,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:36:08,113 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:36:08,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:36:08,114 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:36:08,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:36:08,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:36:08,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:36:08,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:36:08,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:36:08,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:36:08,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:36:08,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:36:08,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:36:08,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:36:08,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:36:08,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:36:08,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:36:08,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:36:08,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:36:08,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:36:08,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:36:08,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:36:08,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:36:08,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:36:08,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:36:08,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:36:08,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:36:08,117 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_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdac738a6686958f2bf9395cbd2de35d90af6cad794e5c654284b73ac8b3868 [2021-12-07 00:36:08,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:36:08,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:36:08,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:36:08,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:36:08,322 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:36:08,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/gcd_1+newton_1_6.i [2021-12-07 00:36:08,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data/bb6b1bdbb/a30c4a617cb04b3487c1c9e9a0232db1/FLAGd9c1f0edb [2021-12-07 00:36:08,747 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:36:08,747 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i [2021-12-07 00:36:08,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data/bb6b1bdbb/a30c4a617cb04b3487c1c9e9a0232db1/FLAGd9c1f0edb [2021-12-07 00:36:08,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data/bb6b1bdbb/a30c4a617cb04b3487c1c9e9a0232db1 [2021-12-07 00:36:08,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:36:08,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:36:08,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:36:08,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:36:08,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:36:08,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:08,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11578fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08, skipping insertion in model container [2021-12-07 00:36:08,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:08,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:36:08,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:36:08,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i[1226,1239] [2021-12-07 00:36:08,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i[2786,2799] [2021-12-07 00:36:08,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:36:08,943 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:36:08,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i[1226,1239] [2021-12-07 00:36:08,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i[2786,2799] [2021-12-07 00:36:08,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:36:08,979 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:36:08,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08 WrapperNode [2021-12-07 00:36:08,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:36:08,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:36:08,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:36:08,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:36:08,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:08,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,008 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2021-12-07 00:36:09,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:36:09,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:36:09,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:36:09,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:36:09,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:36:09,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:36:09,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:36:09,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:36:09,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (1/1) ... [2021-12-07 00:36:09,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:36:09,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:36:09,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:36:09,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:36:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:36:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:36:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:36:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:36:09,139 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:36:09,141 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:36:09,244 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:36:09,250 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:36:09,250 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:36:09,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:09 BoogieIcfgContainer [2021-12-07 00:36:09,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:36:09,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:36:09,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:36:09,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:36:09,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:36:08" (1/3) ... [2021-12-07 00:36:09,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f248f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:09, skipping insertion in model container [2021-12-07 00:36:09,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:08" (2/3) ... [2021-12-07 00:36:09,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f248f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:09, skipping insertion in model container [2021-12-07 00:36:09,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:09" (3/3) ... [2021-12-07 00:36:09,259 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_6.i [2021-12-07 00:36:09,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:36:09,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-07 00:36:09,309 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:36:09,315 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:36:09,315 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-07 00:36:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-12-07 00:36:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 00:36:09,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:09,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:09,331 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:36:09,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:09,335 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-12-07 00:36:09,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:36:09,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751230163] [2021-12-07 00:36:09,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:09,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:36:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:36:09,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:36:09,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751230163] [2021-12-07 00:36:09,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751230163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:36:09,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:36:09,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:36:09,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407754056] [2021-12-07 00:36:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:36:09,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:36:09,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:36:09,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:36:09,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:36:09,469 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:36:09,480 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-12-07 00:36:09,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:36:09,482 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-07 00:36:09,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:36:09,487 INFO L225 Difference]: With dead ends: 46 [2021-12-07 00:36:09,487 INFO L226 Difference]: Without dead ends: 19 [2021-12-07 00:36:09,489 INFO L932 BasicCegarLoop]: 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 [2021-12-07 00:36:09,492 INFO L933 BasicCegarLoop]: 31 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, 31 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 [2021-12-07 00:36:09,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:36:09,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-07 00:36:09,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-07 00:36:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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) [2021-12-07 00:36:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-12-07 00:36:09,517 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-12-07 00:36:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:36:09,518 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-12-07 00:36:09,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-12-07 00:36:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 00:36:09,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:09,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:09,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:36:09,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:36:09,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:09,520 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-12-07 00:36:09,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:36:09,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907513128] [2021-12-07 00:36:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:09,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:36:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:36:09,549 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:36:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:36:09,578 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:36:09,578 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 00:36:09,580 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-07 00:36:09,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-07 00:36:09,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:36:09,586 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-07 00:36:09,589 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:36:09,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:36:09 BoogieIcfgContainer [2021-12-07 00:36:09,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:36:09,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:36:09,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:36:09,612 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:36:09,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:09" (3/4) ... [2021-12-07 00:36:09,615 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 00:36:09,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:36:09,615 INFO L158 Benchmark]: Toolchain (without parser) took 850.79ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 71.1MB in the end (delta: -8.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:36:09,616 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory was 78.7MB in the beginning and 78.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:36:09,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.23ms. Allocated memory is still 98.6MB. Free memory was 62.4MB in the beginning and 73.6MB in the end (delta: -11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 00:36:09,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.70ms. Allocated memory is still 98.6MB. Free memory was 73.6MB in the beginning and 71.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:36:09,617 INFO L158 Benchmark]: Boogie Preprocessor took 17.55ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 70.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:36:09,617 INFO L158 Benchmark]: RCFGBuilder took 224.47ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 59.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 00:36:09,618 INFO L158 Benchmark]: TraceAbstraction took 357.13ms. Allocated memory is still 98.6MB. Free memory was 59.3MB in the beginning and 71.6MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:36:09,618 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 98.6MB. Free memory was 71.6MB in the beginning and 71.1MB in the end (delta: 481.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:36:09,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory was 78.7MB in the beginning and 78.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.23ms. Allocated memory is still 98.6MB. Free memory was 62.4MB in the beginning and 73.6MB in the end (delta: -11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.70ms. Allocated memory is still 98.6MB. Free memory was 73.6MB in the beginning and 71.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.55ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 70.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 224.47ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 59.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 357.13ms. Allocated memory is still 98.6MB. Free memory was 59.3MB in the beginning and 71.6MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 98.6MB. Free memory was 71.6MB in the beginning and 71.1MB in the end (delta: 481.4kB). 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=49] [L102] reach_error() VAL [IN=49] - UnprovableResult [Line: 27]: 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 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 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, 31 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=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-12-07 00:36:09,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa --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 0cdac738a6686958f2bf9395cbd2de35d90af6cad794e5c654284b73ac8b3868 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:36:11,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:36:11,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:36:11,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:36:11,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:36:11,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:36:11,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:36:11,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:36:11,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:36:11,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:36:11,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:36:11,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:36:11,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:36:11,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:36:11,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:36:11,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:36:11,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:36:11,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:36:11,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:36:11,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:36:11,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:36:11,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:36:11,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:36:11,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:36:11,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:36:11,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:36:11,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:36:11,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:36:11,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:36:11,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:36:11,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:36:11,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:36:11,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:36:11,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:36:11,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:36:11,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:36:11,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:36:11,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:36:11,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:36:11,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:36:11,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:36:11,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-07 00:36:11,248 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:36:11,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:36:11,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:36:11,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:36:11,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:36:11,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:36:11,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:36:11,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:36:11,250 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:36:11,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:36:11,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:36:11,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:36:11,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:36:11,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:36:11,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:36:11,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:36:11,252 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 00:36:11,252 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 00:36:11,252 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 00:36:11,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:36:11,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:36:11,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:36:11,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:36:11,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:36:11,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:36:11,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:36:11,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:36:11,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:36:11,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:36:11,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:36:11,254 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 00:36:11,254 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 00:36:11,254 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:36:11,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:36:11,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:36:11,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:36:11,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 00:36:11,255 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_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdac738a6686958f2bf9395cbd2de35d90af6cad794e5c654284b73ac8b3868 [2021-12-07 00:36:11,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:36:11,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:36:11,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:36:11,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:36:11,511 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:36:11,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/gcd_1+newton_1_6.i [2021-12-07 00:36:11,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data/aeaf835a8/49a6855c044b4f64b2d31c1ff3ec5152/FLAG12997b511 [2021-12-07 00:36:11,882 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:36:11,882 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i [2021-12-07 00:36:11,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data/aeaf835a8/49a6855c044b4f64b2d31c1ff3ec5152/FLAG12997b511 [2021-12-07 00:36:12,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/data/aeaf835a8/49a6855c044b4f64b2d31c1ff3ec5152 [2021-12-07 00:36:12,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:36:12,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:36:12,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:36:12,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:36:12,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:36:12,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70958349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12, skipping insertion in model container [2021-12-07 00:36:12,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:36:12,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:36:12,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i[1226,1239] [2021-12-07 00:36:12,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i[2786,2799] [2021-12-07 00:36:12,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:36:12,459 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:36:12,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i[1226,1239] [2021-12-07 00:36:12,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/sv-benchmarks/c/combinations/gcd_1+newton_1_6.i[2786,2799] [2021-12-07 00:36:12,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:36:12,489 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:36:12,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12 WrapperNode [2021-12-07 00:36:12,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:36:12,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:36:12,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:36:12,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:36:12,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,520 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2021-12-07 00:36:12,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:36:12,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:36:12,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:36:12,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:36:12,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:36:12,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:36:12,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:36:12,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:36:12,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (1/1) ... [2021-12-07 00:36:12,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:36:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:36:12,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:36:12,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:36:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:36:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 00:36:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:36:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:36:12,656 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:36:12,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:36:18,564 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:36:18,570 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:36:18,570 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:36:18,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:18 BoogieIcfgContainer [2021-12-07 00:36:18,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:36:18,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:36:18,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:36:18,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:36:18,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:36:12" (1/3) ... [2021-12-07 00:36:18,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb679b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:18, skipping insertion in model container [2021-12-07 00:36:18,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:12" (2/3) ... [2021-12-07 00:36:18,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb679b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:18, skipping insertion in model container [2021-12-07 00:36:18,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:18" (3/3) ... [2021-12-07 00:36:18,579 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_6.i [2021-12-07 00:36:18,583 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:36:18,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-07 00:36:18,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:36:18,625 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:36:18,625 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-07 00:36:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-12-07 00:36:18,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 00:36:18,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:18,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:18,642 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:36:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:18,648 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-12-07 00:36:18,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:36:18,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600408225] [2021-12-07 00:36:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:18,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:36:18,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:36:18,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:36:18,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 00:36:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:19,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-07 00:36:19,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:36:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:36:19,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:36:19,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:36:19,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600408225] [2021-12-07 00:36:19,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600408225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:36:19,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:36:19,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:36:19,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68552693] [2021-12-07 00:36:19,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:36:19,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:36:19,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:36:19,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:36:19,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:36:19,822 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:19,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:36:19,833 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-12-07 00:36:19,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:36:19,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-07 00:36:19,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:36:19,840 INFO L225 Difference]: With dead ends: 46 [2021-12-07 00:36:19,840 INFO L226 Difference]: Without dead ends: 19 [2021-12-07 00:36:19,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:36:19,844 INFO L933 BasicCegarLoop]: 31 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, 31 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 [2021-12-07 00:36:19,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:36:19,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-07 00:36:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-07 00:36:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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) [2021-12-07 00:36:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-12-07 00:36:19,870 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-12-07 00:36:19,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:36:19,870 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-12-07 00:36:19,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:19,871 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-12-07 00:36:19,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 00:36:19,871 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:19,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:19,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:36:20,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:36:20,073 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:36:20,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:20,076 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-12-07 00:36:20,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:36:20,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524364549] [2021-12-07 00:36:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:20,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:36:20,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:36:20,080 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:36:20,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-07 00:36:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:36:25,962 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:36:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:36:38,692 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-07 00:36:38,692 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 00:36:38,693 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-07 00:36:38,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-07 00:36:38,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-07 00:36:38,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:36:38,906 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-07 00:36:38,914 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:36:38,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:36:38 BoogieIcfgContainer [2021-12-07 00:36:38,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:36:38,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:36:38,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:36:38,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:36:38,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:18" (3/4) ... [2021-12-07 00:36:38,952 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-07 00:36:38,978 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:36:38,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:36:38,979 INFO L158 Benchmark]: Toolchain (without parser) took 26678.38ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 33.8MB in the beginning and 57.4MB in the end (delta: -23.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-12-07 00:36:38,979 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:36:38,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.24ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 33.7MB in the beginning and 66.5MB in the end (delta: -32.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-12-07 00:36:38,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.16ms. Allocated memory is still 86.0MB. Free memory was 66.5MB in the beginning and 64.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:36:38,980 INFO L158 Benchmark]: Boogie Preprocessor took 21.41ms. Allocated memory is still 86.0MB. Free memory was 64.8MB in the beginning and 63.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:36:38,981 INFO L158 Benchmark]: RCFGBuilder took 6029.57ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 52.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 00:36:38,981 INFO L158 Benchmark]: TraceAbstraction took 20376.35ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 59.0MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:36:38,981 INFO L158 Benchmark]: Witness Printer took 27.81ms. Allocated memory is still 86.0MB. Free memory was 59.0MB in the beginning and 57.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:36:38,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.24ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 33.7MB in the beginning and 66.5MB in the end (delta: -32.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.16ms. Allocated memory is still 86.0MB. Free memory was 66.5MB in the beginning and 64.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.41ms. Allocated memory is still 86.0MB. Free memory was 64.8MB in the beginning and 63.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6029.57ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 52.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 20376.35ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 59.0MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 27.81ms. Allocated memory is still 86.0MB. Free memory was 59.0MB in the beginning and 57.4MB 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: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.9217368364334106, \result=-0.7968756556510925, x=-0.9217368364334106] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.9217368364334106, \result=0.6061280369758606, x=-0.9217368364334106] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.9217368364334106, x=0.3929617404937744] [L102] reach_error() VAL [IN=-0.9217368364334106, x=0.3929617404937744] - UnprovableResult [Line: 27]: 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 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 20.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 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, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 6.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 30 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! [2021-12-07 00:36:39,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85261d2-1b02-4713-bc69-58bb08459428/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE