./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --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 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:55:51,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:55:51,658 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:55:51,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:55:51,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:55:51,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:55:51,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:55:51,687 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:55:51,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:55:51,687 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:55:51,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:55:51,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:55:51,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:55:51,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:55:51,688 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:55:51,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:55:51,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:55:51,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:55:51,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:55:51,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:55:51,689 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:55:51,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:55:51,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:55:51,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:55:51,690 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:55:51,690 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:55:51,690 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:55:51,690 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:55:51,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:55:51,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:55:51,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:55:51,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:55:51,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:55:51,692 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 [2024-11-13 15:55:52,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:55:52,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:55:52,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:55:52,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:55:52,031 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:55:52,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i Unable to find full path for "g++" [2024-11-13 15:55:54,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:55:54,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:55:54,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2024-11-13 15:55:54,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/data/c91337262/bf17b6acdd0343f088eb16cf94b69450/FLAG6dceae0e5 [2024-11-13 15:55:54,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/data/c91337262/bf17b6acdd0343f088eb16cf94b69450 [2024-11-13 15:55:54,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:55:54,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:55:54,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:55:54,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:55:54,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:55:54,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:54,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef11671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54, skipping insertion in model container [2024-11-13 15:55:54,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:54,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:55:54,899 WARN L250 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_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[1226,1239] [2024-11-13 15:55:54,941 WARN L250 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_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[2820,2833] [2024-11-13 15:55:54,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:55:54,953 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:55:54,966 WARN L250 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_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[1226,1239] [2024-11-13 15:55:54,979 WARN L250 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_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[2820,2833] [2024-11-13 15:55:54,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:55:54,997 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:55:54,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54 WrapperNode [2024-11-13 15:55:54,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:55:55,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:55:55,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:55:55,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:55:55,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,062 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2024-11-13 15:55:55,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:55:55,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:55:55,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:55:55,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:55:55,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,095 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:55:55,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:55:55,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:55:55,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:55:55,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:55:55,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (1/1) ... [2024-11-13 15:55:55,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:55:55,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:55:55,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:55:55,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:55:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:55:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:55:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:55:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:55:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:55:55,294 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:55:55,296 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:55:55,536 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-13 15:55:55,536 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:55:55,547 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:55:55,547 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:55:55,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:55:55 BoogieIcfgContainer [2024-11-13 15:55:55,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:55:55,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:55:55,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:55:55,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:55:55,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:55:54" (1/3) ... [2024-11-13 15:55:55,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f38f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:55:55, skipping insertion in model container [2024-11-13 15:55:55,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:54" (2/3) ... [2024-11-13 15:55:55,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f38f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:55:55, skipping insertion in model container [2024-11-13 15:55:55,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:55:55" (3/3) ... [2024-11-13 15:55:55,560 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_2.i [2024-11-13 15:55:55,582 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:55:55,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_2.i that has 1 procedures, 27 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-13 15:55:55,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:55:55,681 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@449ee831, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:55:55,681 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:55:55,686 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) [2024-11-13 15:55:55,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:55:55,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:55,693 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:55:55,694 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:55,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:55,699 INFO L85 PathProgramCache]: Analyzing trace with hash -469338024, now seen corresponding path program 1 times [2024-11-13 15:55:55,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:55,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217247767] [2024-11-13 15:55:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:55,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:55,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:55,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217247767] [2024-11-13 15:55:55,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217247767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:55,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:55,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:55:55,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470978384] [2024-11-13 15:55:55,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:55,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:55:55,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:55,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:55:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:55:55,897 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) [2024-11-13 15:55:55,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:55,911 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-11-13 15:55:55,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:55:55,917 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 [2024-11-13 15:55:55,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:55,926 INFO L225 Difference]: With dead ends: 47 [2024-11-13 15:55:55,926 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 15:55:55,929 INFO L431 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 [2024-11-13 15:55:55,932 INFO L432 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 [2024-11-13 15:55:55,933 INFO L433 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] [2024-11-13 15:55:55,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 15:55:55,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 15:55:55,962 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) [2024-11-13 15:55:55,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-13 15:55:55,969 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-13 15:55:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:55,969 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-13 15:55:55,969 INFO L472 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) [2024-11-13 15:55:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 15:55:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:55:55,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:55,970 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:55:55,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:55:55,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:55,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:55,974 INFO L85 PathProgramCache]: Analyzing trace with hash -412079722, now seen corresponding path program 1 times [2024-11-13 15:55:55,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:55,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266704043] [2024-11-13 15:55:55,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:55,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:55:56,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:55:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:55:56,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:55:56,086 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:55:56,088 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 15:55:56,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 15:55:56,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:55:56,096 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 15:55:56,116 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:55:56,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:55:56 BoogieIcfgContainer [2024-11-13 15:55:56,124 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:55:56,125 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:55:56,125 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:55:56,125 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:55:56,126 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:55:55" (3/4) ... [2024-11-13 15:55:56,129 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:55:56,130 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:55:56,131 INFO L158 Benchmark]: Toolchain (without parser) took 1410.26ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 44.4MB in the end (delta: 48.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 15:55:56,132 INFO L158 Benchmark]: CDTParser took 1.28ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 41.7MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:55:56,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.26ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:55:56,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.00ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:55:56,136 INFO L158 Benchmark]: Boogie Preprocessor took 41.35ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:55:56,136 INFO L158 Benchmark]: RCFGBuilder took 434.47ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 65.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:55:56,137 INFO L158 Benchmark]: TraceAbstraction took 573.35ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 45.0MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:55:56,137 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 117.4MB. Free memory was 45.0MB in the beginning and 44.4MB in the end (delta: 568.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:55:56,143 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 41.7MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.26ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.00ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.35ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 434.47ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 65.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 573.35ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 45.0MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 117.4MB. Free memory was 45.0MB in the beginning and 44.4MB in the end (delta: 568.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 85, 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 > -0.4f && IN < 0.4f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -0.4f && IN < 0.4f) [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; [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; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 15:55:56,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --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 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:55:59,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:55:59,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:55:59,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:55:59,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:55:59,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:55:59,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:55:59,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:55:59,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:55:59,264 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:55:59,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:55:59,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:55:59,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:55:59,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:55:59,265 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:55:59,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:55:59,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:55:59,265 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:55:59,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:55:59,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:55:59,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:55:59,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:55:59,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:55:59,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:55:59,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:55:59,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:55:59,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:55:59,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:55:59,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:55:59,271 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:55:59,272 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:55:59,272 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:55:59,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:55:59,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:55:59,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:55:59,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:55:59,272 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 96ec2e8436d28d80fc74b2bfe826a0c3f658cac9b1711d8b968fe796010eaf24 [2024-11-13 15:55:59,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:55:59,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:55:59,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:55:59,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:55:59,650 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:55:59,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/gcd_3+newton_1_2.i Unable to find full path for "g++" [2024-11-13 15:56:01,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:56:02,030 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:56:02,034 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i [2024-11-13 15:56:02,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/data/cf9547743/226a9433fac64e65b2e5a2a5d1f62b09/FLAG003853cef [2024-11-13 15:56:02,092 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/data/cf9547743/226a9433fac64e65b2e5a2a5d1f62b09 [2024-11-13 15:56:02,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:56:02,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:56:02,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:56:02,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:56:02,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:56:02,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18da3c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02, skipping insertion in model container [2024-11-13 15:56:02,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:56:02,331 WARN L250 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_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[1226,1239] [2024-11-13 15:56:02,377 WARN L250 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_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[2820,2833] [2024-11-13 15:56:02,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:56:02,403 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:56:02,420 WARN L250 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_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[1226,1239] [2024-11-13 15:56:02,445 WARN L250 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_401ca071-4e7c-49b0-8401-62f2873a53e5/sv-benchmarks/c/combinations/gcd_3+newton_1_2.i[2820,2833] [2024-11-13 15:56:02,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:56:02,471 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:56:02,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02 WrapperNode [2024-11-13 15:56:02,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:56:02,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:56:02,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:56:02,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:56:02,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,535 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2024-11-13 15:56:02,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:56:02,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:56:02,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:56:02,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:56:02,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,555 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,575 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:56:02,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,589 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:56:02,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:56:02,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:56:02,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:56:02,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (1/1) ... [2024-11-13 15:56:02,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:56:02,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:02,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:56:02,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:56:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:56:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:56:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 15:56:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:56:02,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:56:02,808 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:56:02,810 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:56:12,563 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-13 15:56:12,563 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:56:12,572 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:56:12,572 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:56:12,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:56:12 BoogieIcfgContainer [2024-11-13 15:56:12,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:56:12,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:56:12,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:56:12,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:56:12,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:56:02" (1/3) ... [2024-11-13 15:56:12,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea0d40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:56:12, skipping insertion in model container [2024-11-13 15:56:12,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:02" (2/3) ... [2024-11-13 15:56:12,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea0d40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:56:12, skipping insertion in model container [2024-11-13 15:56:12,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:56:12" (3/3) ... [2024-11-13 15:56:12,584 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_2.i [2024-11-13 15:56:12,601 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:56:12,603 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_2.i that has 1 procedures, 27 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-13 15:56:12,653 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:56:12,666 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@759eb85c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:56:12,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:56:12,670 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) [2024-11-13 15:56:12,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:56:12,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:12,677 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:12,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:56:12,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash -469338024, now seen corresponding path program 1 times [2024-11-13 15:56:12,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:56:12,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939006932] [2024-11-13 15:56:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:12,695 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 [2024-11-13 15:56:12,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:56:12,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:56:12,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:56:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:13,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:56:13,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:56:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:13,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:56:13,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:56:13,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939006932] [2024-11-13 15:56:13,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939006932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:13,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:13,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:56:13,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124701480] [2024-11-13 15:56:13,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:13,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:56:13,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:56:13,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:56:13,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:56:13,964 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) [2024-11-13 15:56:13,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:13,978 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-11-13 15:56:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:56:13,981 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 [2024-11-13 15:56:13,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:13,989 INFO L225 Difference]: With dead ends: 47 [2024-11-13 15:56:13,989 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 15:56:13,992 INFO L431 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 [2024-11-13 15:56:13,997 INFO L432 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 [2024-11-13 15:56:14,000 INFO L433 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] [2024-11-13 15:56:14,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 15:56:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 15:56:14,029 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) [2024-11-13 15:56:14,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-13 15:56:14,035 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-13 15:56:14,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:14,035 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-13 15:56:14,035 INFO L472 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) [2024-11-13 15:56:14,036 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 15:56:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:56:14,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:14,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:14,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 15:56:14,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:56:14,237 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:56:14,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:14,238 INFO L85 PathProgramCache]: Analyzing trace with hash -412079722, now seen corresponding path program 1 times [2024-11-13 15:56:14,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:56:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845304282] [2024-11-13 15:56:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:14,239 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 [2024-11-13 15:56:14,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:56:14,244 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:56:14,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ca071-4e7c-49b0-8401-62f2873a53e5/bin/uautomizer-verify-qhAvR1uOyd/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