./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a --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 b3e6d6197033d1263350baa937a3f4840980ed64c6f14711d69f2cfe01c9814f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:07:02,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:07:02,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:07:02,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:07:02,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:07:02,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:07:02,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:07:02,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:07:03,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:07:03,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:07:03,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:07:03,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:07:03,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:07:03,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:07:03,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:07:03,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:07:03,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:07:03,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:07:03,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:07:03,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:07:03,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:07:03,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:07:03,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:07:03,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:07:03,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:07:03,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:07:03,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:07:03,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:07:03,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:07:03,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:07:03,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:07:03,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:07:03,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:07:03,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:07:03,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:07:03,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:07:03,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:07:03,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:07:03,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:07:03,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:07:03,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:07:03,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:07:03,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:07:03,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:07:03,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:07:03,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:07:03,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:07:03,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:07:03,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:07:03,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:07:03,076 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:07:03,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:07:03,077 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:07:03,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:07:03,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:07:03,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:07:03,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:07:03,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:07:03,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:07:03,079 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:07:03,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:07:03,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:07:03,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:07:03,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:07:03,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:07:03,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:07:03,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:07:03,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:07:03,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:07:03,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:07:03,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:07:03,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:07:03,084 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:07:03,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:07:03,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:07:03,085 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_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3e6d6197033d1263350baa937a3f4840980ed64c6f14711d69f2cfe01c9814f [2022-11-21 16:07:03,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:07:03,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:07:03,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:07:03,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:07:03,506 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:07:03,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i [2022-11-21 16:07:07,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:07:07,342 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:07:07,342 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i [2022-11-21 16:07:07,351 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/data/3b03297ec/facb25af5a034bf4b31761e31f383879/FLAGcf0b4319e [2022-11-21 16:07:07,368 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/data/3b03297ec/facb25af5a034bf4b31761e31f383879 [2022-11-21 16:07:07,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:07:07,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:07:07,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:07,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:07:07,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:07:07,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a67b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07, skipping insertion in model container [2022-11-21 16:07:07,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:07:07,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:07:07,676 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[1226,1239] [2022-11-21 16:07:07,706 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[2820,2833] [2022-11-21 16:07:07,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:07,719 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:07:07,734 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[1226,1239] [2022-11-21 16:07:07,746 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[2820,2833] [2022-11-21 16:07:07,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:07,765 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:07:07,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07 WrapperNode [2022-11-21 16:07:07,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:07,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:07,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:07:07,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:07:07,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,832 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-11-21 16:07:07,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:07,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:07:07,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:07:07,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:07:07,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,861 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:07:07,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:07:07,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:07:07,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:07:07,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (1/1) ... [2022-11-21 16:07:07,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:07:07,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:07,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:07,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:07:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:07:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:07:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:07:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:07:08,040 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:07:08,042 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:07:08,237 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:07:08,245 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:07:08,245 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:07:08,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:08 BoogieIcfgContainer [2022-11-21 16:07:08,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:07:08,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:07:08,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:07:08,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:07:08,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:07:07" (1/3) ... [2022-11-21 16:07:08,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c487c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:08, skipping insertion in model container [2022-11-21 16:07:08,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:07" (2/3) ... [2022-11-21 16:07:08,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c487c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:08, skipping insertion in model container [2022-11-21 16:07:08,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:08" (3/3) ... [2022-11-21 16:07:08,259 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_5.i [2022-11-21 16:07:08,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:07:08,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 16:07:08,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:07:08,388 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78acd502, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:07:08,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 16:07:08,393 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) [2022-11-21 16:07:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:07:08,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:08,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:08,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:08,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-11-21 16:07:08,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:08,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051570226] [2022-11-21 16:07:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:08,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:08,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:08,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051570226] [2022-11-21 16:07:08,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051570226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:08,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:08,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:07:08,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160190093] [2022-11-21 16:07:08,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:08,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:07:08,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:08,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:07:08,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:07:08,699 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) [2022-11-21 16:07:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:08,721 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-11-21 16:07:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:07:08,724 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 [2022-11-21 16:07:08,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:07:08,734 INFO L225 Difference]: With dead ends: 47 [2022-11-21 16:07:08,735 INFO L226 Difference]: Without dead ends: 19 [2022-11-21 16:07:08,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:07:08,743 INFO L413 NwaCegarLoop]: 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 [2022-11-21 16:07:08,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:07:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-21 16:07:08,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-21 16:07:08,783 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) [2022-11-21 16:07:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-21 16:07:08,786 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-11-21 16:07:08,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:07:08,787 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-21 16:07:08,787 INFO L496 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) [2022-11-21 16:07:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-21 16:07:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:07:08,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:08,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:08,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:07:08,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:08,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:08,791 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-11-21 16:07:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:08,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905775485] [2022-11-21 16:07:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:08,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:08,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:08,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:08,862 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:07:08,865 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-21 16:07:08,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-21 16:07:08,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:07:08,873 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 16:07:08,877 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:07:08,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:07:08 BoogieIcfgContainer [2022-11-21 16:07:08,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:07:08,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:07:08,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:07:08,907 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:07:08,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:08" (3/4) ... [2022-11-21 16:07:08,912 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:07:08,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:07:08,913 INFO L158 Benchmark]: Toolchain (without parser) took 1540.42ms. Allocated memory is still 130.0MB. Free memory was 91.9MB in the beginning and 55.8MB in the end (delta: 36.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-11-21 16:07:08,914 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:08,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.89ms. Allocated memory is still 130.0MB. Free memory was 91.6MB in the beginning and 96.0MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 16:07:08,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.77ms. Allocated memory is still 130.0MB. Free memory was 96.0MB in the beginning and 94.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:08,916 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 130.0MB. Free memory was 94.1MB in the beginning and 92.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:08,917 INFO L158 Benchmark]: RCFGBuilder took 381.89ms. Allocated memory is still 130.0MB. Free memory was 92.8MB in the beginning and 81.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:07:08,918 INFO L158 Benchmark]: TraceAbstraction took 653.98ms. Allocated memory is still 130.0MB. Free memory was 80.5MB in the beginning and 56.1MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:08,918 INFO L158 Benchmark]: Witness Printer took 6.21ms. Allocated memory is still 130.0MB. Free memory was 56.1MB in the beginning and 55.8MB in the end (delta: 326.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:08,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.89ms. Allocated memory is still 130.0MB. Free memory was 91.6MB in the beginning and 96.0MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.77ms. Allocated memory is still 130.0MB. Free memory was 96.0MB in the beginning and 94.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 130.0MB. Free memory was 94.1MB in the beginning and 92.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 381.89ms. Allocated memory is still 130.0MB. Free memory was 92.8MB in the beginning and 81.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 653.98ms. Allocated memory is still 130.0MB. Free memory was 80.5MB in the beginning and 56.1MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.21ms. Allocated memory is still 130.0MB. Free memory was 56.1MB in the beginning and 55.8MB in the end (delta: 326.4kB). 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 > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [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)=109, x=109] [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)=109, x=109] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=109] [L102] reach_error() VAL [IN=109] - 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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, 0.1s 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 [2022-11-21 16:07:08,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a --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 b3e6d6197033d1263350baa937a3f4840980ed64c6f14711d69f2cfe01c9814f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:07:11,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:07:11,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:07:11,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:07:11,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:07:11,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:07:11,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:07:11,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:07:11,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:07:11,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:07:11,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:07:11,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:07:11,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:07:11,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:07:11,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:07:11,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:07:11,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:07:11,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:07:11,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:07:11,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:07:11,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:07:11,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:07:11,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:07:11,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:07:11,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:07:11,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:07:11,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:07:11,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:07:11,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:07:11,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:07:11,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:07:11,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:07:11,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:07:11,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:07:11,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:07:11,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:07:11,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:07:11,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:07:11,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:07:11,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:07:11,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:07:11,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-21 16:07:12,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:07:12,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:07:12,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:07:12,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:07:12,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:07:12,039 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:07:12,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:07:12,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:07:12,040 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:07:12,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:07:12,042 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:07:12,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:07:12,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:07:12,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:07:12,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:07:12,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:07:12,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:07:12,043 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:07:12,043 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:07:12,044 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:07:12,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:07:12,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:07:12,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:07:12,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:07:12,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:07:12,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:07:12,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:07:12,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:07:12,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:07:12,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:07:12,046 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:07:12,046 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:07:12,047 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:07:12,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:07:12,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:07:12,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:07:12,048 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_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3e6d6197033d1263350baa937a3f4840980ed64c6f14711d69f2cfe01c9814f [2022-11-21 16:07:12,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:07:12,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:07:12,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:07:12,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:07:12,487 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:07:12,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i [2022-11-21 16:07:16,091 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:07:16,338 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:07:16,339 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i [2022-11-21 16:07:16,348 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/data/8b72be285/5479dc3d30d64c8aa49f80bc50c9ed45/FLAGa84748a62 [2022-11-21 16:07:16,379 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/data/8b72be285/5479dc3d30d64c8aa49f80bc50c9ed45 [2022-11-21 16:07:16,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:07:16,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:07:16,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:16,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:07:16,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:07:16,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5db65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16, skipping insertion in model container [2022-11-21 16:07:16,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:07:16,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:07:16,690 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[1226,1239] [2022-11-21 16:07:16,749 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[2820,2833] [2022-11-21 16:07:16,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:16,775 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:07:16,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[1226,1239] [2022-11-21 16:07:16,825 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[2820,2833] [2022-11-21 16:07:16,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:16,854 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:07:16,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16 WrapperNode [2022-11-21 16:07:16,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:16,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:16,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:07:16,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:07:16,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,938 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-11-21 16:07:16,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:16,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:07:16,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:07:16,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:07:16,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:16,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:17,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:17,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:07:17,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:07:17,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:07:17,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:07:17,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (1/1) ... [2022-11-21 16:07:17,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:07:17,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:17,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:17,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:07:17,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:07:17,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:07:17,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:07:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:07:17,277 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:07:17,279 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:07:24,440 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:07:24,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:07:24,446 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:07:24,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:24 BoogieIcfgContainer [2022-11-21 16:07:24,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:07:24,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:07:24,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:07:24,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:07:24,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:07:16" (1/3) ... [2022-11-21 16:07:24,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de5074b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:24, skipping insertion in model container [2022-11-21 16:07:24,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:16" (2/3) ... [2022-11-21 16:07:24,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de5074b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:24, skipping insertion in model container [2022-11-21 16:07:24,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:24" (3/3) ... [2022-11-21 16:07:24,459 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_5.i [2022-11-21 16:07:24,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:07:24,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 16:07:24,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:07:24,563 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ca59429, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:07:24,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 16:07:24,568 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) [2022-11-21 16:07:24,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:07:24,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:24,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:24,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:24,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:24,584 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-11-21 16:07:24,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:07:24,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905717798] [2022-11-21 16:07:24,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:24,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:07:24,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:07:24,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 16:07:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:26,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:07:26,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:26,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:26,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:07:26,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:07:26,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905717798] [2022-11-21 16:07:26,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905717798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:26,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:26,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:07:26,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193189670] [2022-11-21 16:07:26,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:26,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:07:26,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:07:26,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:07:26,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:07:26,158 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) [2022-11-21 16:07:26,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:26,176 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-11-21 16:07:26,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:07:26,178 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 [2022-11-21 16:07:26,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:07:26,187 INFO L225 Difference]: With dead ends: 47 [2022-11-21 16:07:26,188 INFO L226 Difference]: Without dead ends: 19 [2022-11-21 16:07:26,191 INFO L412 NwaCegarLoop]: 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 [2022-11-21 16:07:26,195 INFO L413 NwaCegarLoop]: 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 [2022-11-21 16:07:26,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:07:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-21 16:07:26,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-21 16:07:26,229 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) [2022-11-21 16:07:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-21 16:07:26,231 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-11-21 16:07:26,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:07:26,232 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-21 16:07:26,232 INFO L496 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) [2022-11-21 16:07:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-21 16:07:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:07:26,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:26,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:26,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:26,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:07:26,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:26,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:26,436 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-11-21 16:07:26,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:07:26,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176803879] [2022-11-21 16:07:26,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:26,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:07:26,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:07:26,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:07:26,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 16:07:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:41,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:56,295 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 16:07:56,297 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:07:56,301 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-21 16:07:56,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-21 16:07:56,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:56,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:07:56,538 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 16:07:56,543 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:07:56,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:07:56 BoogieIcfgContainer [2022-11-21 16:07:56,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:07:56,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:07:56,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:07:56,572 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:07:56,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:24" (3/4) ... [2022-11-21 16:07:56,577 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 16:07:56,616 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:07:56,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:07:56,617 INFO L158 Benchmark]: Toolchain (without parser) took 40232.67ms. Allocated memory is still 88.1MB. Free memory was 66.3MB in the beginning and 64.1MB in the end (delta: 2.3MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:56,617 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 65.0MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:56,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.78ms. Allocated memory is still 88.1MB. Free memory was 66.0MB in the beginning and 54.2MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:07:56,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.19ms. Allocated memory is still 88.1MB. Free memory was 54.1MB in the beginning and 52.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:56,619 INFO L158 Benchmark]: Boogie Preprocessor took 64.34ms. Allocated memory is still 88.1MB. Free memory was 52.3MB in the beginning and 50.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:56,620 INFO L158 Benchmark]: RCFGBuilder took 7444.39ms. Allocated memory is still 88.1MB. Free memory was 50.6MB in the beginning and 59.8MB in the end (delta: -9.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 16:07:56,620 INFO L158 Benchmark]: TraceAbstraction took 32118.83ms. Allocated memory is still 88.1MB. Free memory was 59.0MB in the beginning and 66.1MB in the end (delta: -7.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-21 16:07:56,621 INFO L158 Benchmark]: Witness Printer took 46.04ms. Allocated memory is still 88.1MB. Free memory was 66.1MB in the beginning and 64.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:56,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 65.0MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.78ms. Allocated memory is still 88.1MB. Free memory was 66.0MB in the beginning and 54.2MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.19ms. Allocated memory is still 88.1MB. Free memory was 54.1MB in the beginning and 52.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.34ms. Allocated memory is still 88.1MB. Free memory was 52.3MB in the beginning and 50.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 7444.39ms. Allocated memory is still 88.1MB. Free memory was 50.6MB in the beginning and 59.8MB in the end (delta: -9.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 32118.83ms. Allocated memory is still 88.1MB. Free memory was 59.0MB in the beginning and 66.1MB in the end (delta: -7.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Witness Printer took 46.04ms. Allocated memory is still 88.1MB. Free memory was 66.1MB in the beginning and 64.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [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)=-0.7001767754554749, \result=-0.644385576248169, x=-0.7001767754554749] [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)=-0.7001767754554749, \result=0.7650542259216309, x=-0.7001767754554749] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.7001767754554749, x=0.1420975923538208] [L102] reach_error() VAL [IN=-0.7001767754554749, x=0.1420975923538208] - 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: 32.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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, 16.6s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-21 16:07:56,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45050fbc-330f-42ab-9536-4171971b29fe/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE