./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU --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 de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:09:10,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:09:10,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:09:10,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:09:10,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:09:10,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:09:10,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:09:10,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:09:10,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:09:10,802 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:09:10,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:09:10,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:09:10,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:09:10,806 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:09:10,807 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:09:10,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:09:10,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:09:10,809 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:09:10,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:09:10,810 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:09:10,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:09:10,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:09:10,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:09:10,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:09:10,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:09:10,817 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:09:10,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:09:10,818 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:09:10,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:09:10,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:09:10,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:09:10,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:09:10,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:10,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:09:10,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:09:10,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:09:10,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:09:10,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:09:10,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:09:10,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:09:10,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:09:10,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:09:10,823 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d [2024-10-31 22:09:11,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:09:11,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:09:11,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:09:11,154 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:09:11,154 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:09:11,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c Unable to find full path for "g++" [2024-10-31 22:09:13,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:09:13,482 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:09:13,482 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2024-10-31 22:09:13,491 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/data/aaff116d2/fcb3d1545f6742069d2779f378ae7492/FLAG0b391eaf0 [2024-10-31 22:09:13,506 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/data/aaff116d2/fcb3d1545f6742069d2779f378ae7492 [2024-10-31 22:09:13,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:09:13,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:09:13,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:13,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:09:13,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:09:13,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224eaf7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13, skipping insertion in model container [2024-10-31 22:09:13,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:09:13,739 WARN L251 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2024-10-31 22:09:13,745 WARN L251 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2024-10-31 22:09:13,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:13,757 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:09:13,786 WARN L251 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2024-10-31 22:09:13,787 WARN L251 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2024-10-31 22:09:13,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:13,818 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:09:13,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13 WrapperNode [2024-10-31 22:09:13,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:13,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:13,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:09:13,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:09:13,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,876 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2024-10-31 22:09:13,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:13,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:09:13,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:09:13,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:09:13,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,920 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-31 22:09:13,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:09:13,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:09:13,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:09:13,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:09:13,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (1/1) ... [2024-10-31 22:09:13,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:13,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:13,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:14,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:09:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:09:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:09:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:09:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:09:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2024-10-31 22:09:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2024-10-31 22:09:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2024-10-31 22:09:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2024-10-31 22:09:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-31 22:09:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-31 22:09:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:09:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:09:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:09:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:09:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:09:14,153 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:09:14,156 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:09:14,514 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-10-31 22:09:14,514 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:09:14,541 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:09:14,545 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:09:14,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:14 BoogieIcfgContainer [2024-10-31 22:09:14,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:09:14,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:09:14,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:09:14,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:09:14,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:09:13" (1/3) ... [2024-10-31 22:09:14,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3736653d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:14, skipping insertion in model container [2024-10-31 22:09:14,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:13" (2/3) ... [2024-10-31 22:09:14,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3736653d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:14, skipping insertion in model container [2024-10-31 22:09:14,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:14" (3/3) ... [2024-10-31 22:09:14,557 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1251.c [2024-10-31 22:09:14,582 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:09:14,582 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:09:14,650 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:09:14,658 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;@5a1a78c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:09:14,659 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-31 22:09:14,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 40 states have (on average 1.45) internal successors, (58), 42 states have internal predecessors, (58), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:09:14,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 22:09:14,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:14,677 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:14,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:14,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:14,684 INFO L85 PathProgramCache]: Analyzing trace with hash 601066810, now seen corresponding path program 1 times [2024-10-31 22:09:14,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:14,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286854899] [2024-10-31 22:09:14,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:14,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:09:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:09:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:09:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:09:15,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:15,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286854899] [2024-10-31 22:09:15,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286854899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:15,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:15,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:15,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377363174] [2024-10-31 22:09:15,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:15,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:15,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:15,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:15,165 INFO L87 Difference]: Start difference. First operand has 55 states, 40 states have (on average 1.45) internal successors, (58), 42 states have internal predecessors, (58), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:09:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:15,345 INFO L93 Difference]: Finished difference Result 97 states and 139 transitions. [2024-10-31 22:09:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:15,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-10-31 22:09:15,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:15,362 INFO L225 Difference]: With dead ends: 97 [2024-10-31 22:09:15,362 INFO L226 Difference]: Without dead ends: 53 [2024-10-31 22:09:15,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:15,372 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 3 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:15,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 226 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-31 22:09:15,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-10-31 22:09:15,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 40 states have internal predecessors, (51), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:09:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2024-10-31 22:09:15,442 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 28 [2024-10-31 22:09:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:15,444 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2024-10-31 22:09:15,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:09:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2024-10-31 22:09:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:09:15,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:15,447 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:15,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:09:15,448 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:15,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:15,449 INFO L85 PathProgramCache]: Analyzing trace with hash 246404667, now seen corresponding path program 1 times [2024-10-31 22:09:15,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:15,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972306347] [2024-10-31 22:09:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:15,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:09:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:09:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:09:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:09:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:09:15,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:15,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972306347] [2024-10-31 22:09:15,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972306347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:15,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:15,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:15,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803050546] [2024-10-31 22:09:15,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:15,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:15,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:15,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:15,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:15,857 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:16,019 INFO L93 Difference]: Finished difference Result 77 states and 101 transitions. [2024-10-31 22:09:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:16,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-10-31 22:09:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:16,027 INFO L225 Difference]: With dead ends: 77 [2024-10-31 22:09:16,027 INFO L226 Difference]: Without dead ends: 57 [2024-10-31 22:09:16,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:16,029 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 3 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:16,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 212 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-31 22:09:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-10-31 22:09:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 43 states have internal predecessors, (54), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 76 transitions. [2024-10-31 22:09:16,046 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 76 transitions. Word has length 34 [2024-10-31 22:09:16,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:16,047 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 76 transitions. [2024-10-31 22:09:16,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:16,048 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2024-10-31 22:09:16,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-31 22:09:16,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:16,049 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:16,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:09:16,050 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:16,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:16,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1526150318, now seen corresponding path program 1 times [2024-10-31 22:09:16,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:16,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972344229] [2024-10-31 22:09:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:16,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:09:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:09:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:09:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:09:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:09:16,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:16,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972344229] [2024-10-31 22:09:16,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972344229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:16,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:16,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:16,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561156017] [2024-10-31 22:09:16,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:16,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:16,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:16,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:16,206 INFO L87 Difference]: Start difference. First operand 57 states and 76 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:16,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:16,342 INFO L93 Difference]: Finished difference Result 81 states and 106 transitions. [2024-10-31 22:09:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:16,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-10-31 22:09:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:16,346 INFO L225 Difference]: With dead ends: 81 [2024-10-31 22:09:16,346 INFO L226 Difference]: Without dead ends: 61 [2024-10-31 22:09:16,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:16,348 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 3 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:16,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 228 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:16,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-31 22:09:16,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2024-10-31 22:09:16,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 43 states have internal predecessors, (54), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:16,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 76 transitions. [2024-10-31 22:09:16,364 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 76 transitions. Word has length 35 [2024-10-31 22:09:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:16,364 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 76 transitions. [2024-10-31 22:09:16,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2024-10-31 22:09:16,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-31 22:09:16,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:16,369 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:16,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:09:16,370 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:16,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:16,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1631952791, now seen corresponding path program 1 times [2024-10-31 22:09:16,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:16,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269372884] [2024-10-31 22:09:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:16,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:09:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:09:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:09:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:09:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,600 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:09:16,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:16,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269372884] [2024-10-31 22:09:16,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269372884] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:16,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:16,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:16,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356597193] [2024-10-31 22:09:16,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:16,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:16,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:16,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:16,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:16,604 INFO L87 Difference]: Start difference. First operand 57 states and 76 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:16,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:16,719 INFO L93 Difference]: Finished difference Result 81 states and 106 transitions. [2024-10-31 22:09:16,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:16,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-10-31 22:09:16,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:16,724 INFO L225 Difference]: With dead ends: 81 [2024-10-31 22:09:16,725 INFO L226 Difference]: Without dead ends: 61 [2024-10-31 22:09:16,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:16,726 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 3 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:16,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 228 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:16,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-31 22:09:16,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2024-10-31 22:09:16,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 43 states have internal predecessors, (54), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 76 transitions. [2024-10-31 22:09:16,744 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 76 transitions. Word has length 36 [2024-10-31 22:09:16,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:16,745 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 76 transitions. [2024-10-31 22:09:16,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:16,745 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2024-10-31 22:09:16,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-31 22:09:16,750 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:16,750 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:16,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:09:16,751 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:16,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:16,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1273333138, now seen corresponding path program 1 times [2024-10-31 22:09:16,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:16,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851501662] [2024-10-31 22:09:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:16,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:09:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:09:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:09:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:09:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:09:16,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851501662] [2024-10-31 22:09:16,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851501662] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:16,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:16,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412606893] [2024-10-31 22:09:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:16,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:16,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:16,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:16,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:16,943 INFO L87 Difference]: Start difference. First operand 57 states and 76 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:17,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:17,052 INFO L93 Difference]: Finished difference Result 81 states and 106 transitions. [2024-10-31 22:09:17,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:17,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-10-31 22:09:17,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:17,057 INFO L225 Difference]: With dead ends: 81 [2024-10-31 22:09:17,057 INFO L226 Difference]: Without dead ends: 61 [2024-10-31 22:09:17,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:17,059 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 3 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:17,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 228 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:17,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-31 22:09:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2024-10-31 22:09:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 43 states have internal predecessors, (54), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:17,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 76 transitions. [2024-10-31 22:09:17,070 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 76 transitions. Word has length 37 [2024-10-31 22:09:17,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:17,071 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 76 transitions. [2024-10-31 22:09:17,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:17,071 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2024-10-31 22:09:17,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-31 22:09:17,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:17,073 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:17,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:09:17,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:17,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1778891763, now seen corresponding path program 1 times [2024-10-31 22:09:17,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:17,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141777532] [2024-10-31 22:09:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:17,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:09:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:17,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:09:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:17,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:09:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:17,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:09:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:09:17,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:17,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141777532] [2024-10-31 22:09:17,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141777532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:17,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:17,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:17,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624892667] [2024-10-31 22:09:17,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:17,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:17,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:17,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:17,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:17,154 INFO L87 Difference]: Start difference. First operand 57 states and 76 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:09:17,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:17,240 INFO L93 Difference]: Finished difference Result 60 states and 79 transitions. [2024-10-31 22:09:17,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:17,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2024-10-31 22:09:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:17,242 INFO L225 Difference]: With dead ends: 60 [2024-10-31 22:09:17,244 INFO L226 Difference]: Without dead ends: 58 [2024-10-31 22:09:17,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:17,245 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:17,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 161 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-31 22:09:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-31 22:09:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 44 states have internal predecessors, (55), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2024-10-31 22:09:17,257 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 77 transitions. Word has length 37 [2024-10-31 22:09:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:17,257 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 77 transitions. [2024-10-31 22:09:17,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:09:17,258 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 77 transitions. [2024-10-31 22:09:17,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-31 22:09:17,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:17,259 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:17,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:09:17,260 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:17,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1941560781, now seen corresponding path program 1 times [2024-10-31 22:09:17,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:17,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076602907] [2024-10-31 22:09:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:17,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:17,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:17,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:17,334 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:09:17,335 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-31 22:09:17,337 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-31 22:09:17,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:09:17,344 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:17,380 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:09:17,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:09:17 BoogieIcfgContainer [2024-10-31 22:09:17,384 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:09:17,385 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:09:17,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:09:17,385 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:09:17,386 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:14" (3/4) ... [2024-10-31 22:09:17,389 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:09:17,390 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:09:17,391 INFO L158 Benchmark]: Toolchain (without parser) took 3880.02ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 102.3MB in the beginning and 83.1MB in the end (delta: 19.2MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2024-10-31 22:09:17,391 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 140.5MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:09:17,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.80ms. Allocated memory is still 140.5MB. Free memory was 102.3MB in the beginning and 88.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:09:17,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.02ms. Allocated memory is still 140.5MB. Free memory was 88.8MB in the beginning and 87.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:09:17,393 INFO L158 Benchmark]: Boogie Preprocessor took 71.68ms. Allocated memory is still 140.5MB. Free memory was 87.1MB in the beginning and 85.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:09:17,393 INFO L158 Benchmark]: RCFGBuilder took 594.63ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 84.7MB in the beginning and 161.6MB in the end (delta: -76.9MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2024-10-31 22:09:17,395 INFO L158 Benchmark]: TraceAbstraction took 2835.59ms. Allocated memory is still 192.9MB. Free memory was 160.6MB in the beginning and 83.1MB in the end (delta: 77.6MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2024-10-31 22:09:17,396 INFO L158 Benchmark]: Witness Printer took 5.55ms. Allocated memory is still 192.9MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:09:17,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 140.5MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.80ms. Allocated memory is still 140.5MB. Free memory was 102.3MB in the beginning and 88.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.02ms. Allocated memory is still 140.5MB. Free memory was 88.8MB in the beginning and 87.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.68ms. Allocated memory is still 140.5MB. Free memory was 87.1MB in the beginning and 85.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.63ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 84.7MB in the beginning and 161.6MB in the end (delta: -76.9MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2835.59ms. Allocated memory is still 192.9MB. Free memory was 160.6MB in the beginning and 83.1MB in the end (delta: 77.6MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. * Witness Printer took 5.55ms. Allocated memory is still 192.9MB. Free memory is still 83.1MB. 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: 76]: 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 75. Possible FailurePath: [L66] float x = __VERIFIER_nondet_float(); [L67] float y = __VERIFIER_nondet_float(); [L69] CALL, EXPR isnan_float(x) VAL [\old(x)=4286578699] [L57] return x != x; VAL [\old(x)=4286578699, \result=1] [L69] RET, EXPR isnan_float(x) VAL [x=4286578699] [L69] EXPR isnan_float(x) && !isnan_float(y) VAL [x=4286578699] [L69] CALL, EXPR isnan_float(y) VAL [\old(x)=4286578698] [L57] return x != x; VAL [\old(x)=4286578698, \result=0] [L69] RET, EXPR isnan_float(y) VAL [x=4286578699, y=4286578698] [L69] EXPR isnan_float(x) && !isnan_float(y) VAL [x=4286578699, y=4286578698] [L69-L70] (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) VAL [x=4286578699, y=4286578698] [L69-L70] COND TRUE (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L72] CALL, EXPR fmax_float(x, y) [L46] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578699] [L23] __uint32_t w; VAL [\old(x)=4286578699, x=4286578699] [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (x) [L28] EXPR gf_u.word [L28] (w) = gf_u.word [L31] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578699, w=4286578689, x=4286578699] [L33-L34] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578699, w=4286578689, x=4286578699] [L36-L37] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578699, w=4286578689, x=4286578699] [L39] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L42] return 0; VAL [\old(x)=4286578699, \result=0, x=4286578699] [L46] RET, EXPR __fpclassify_float(x) VAL [x=4286578699, y=4286578698] [L46] COND TRUE __fpclassify_float(x) == 0 [L47] return y; VAL [\result=4286578698, x=4286578699] [L72] RET, EXPR fmax_float(x, y) [L72] float res = fmax_float(x, y); [L75] CALL, EXPR isnan_float(x) VAL [\old(x)=4286578699] [L57] return x != x; VAL [\old(x)=4286578699, \result=1] [L75] RET, EXPR isnan_float(x) VAL [x=4286578699, y=4286578698] [L75] EXPR isnan_float(x) && !isnan_float(y) VAL [x=4286578699, y=4286578698] [L75] CALL, EXPR isnan_float(y) VAL [\old(x)=4286578698] [L57] return x != x; VAL [\old(x)=4286578698, \result=0] [L75] RET, EXPR isnan_float(y) VAL [x=4286578699, y=4286578698] [L75] EXPR isnan_float(x) && !isnan_float(y) VAL [x=4286578699, y=4286578698] [L75] COND TRUE isnan_float(x) && !isnan_float(y) && res != y [L76] reach_error() VAL [x=4286578699, y=4286578698] - UnprovableResult [Line: 82]: 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 3 procedures, 55 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 1283 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 878 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 405 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=6, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 48/48 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 [2024-10-31 22:09:17,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU --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 de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:09:20,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:09:20,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-31 22:09:20,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:09:20,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:09:20,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:09:20,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:09:20,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:09:20,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:09:20,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:09:20,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:09:20,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:09:20,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:09:20,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:09:20,702 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:09:20,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:09:20,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:09:20,703 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:09:20,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:09:20,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:09:20,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:09:20,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:09:20,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:09:20,710 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:09:20,710 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:09:20,710 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:09:20,711 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:09:20,711 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:09:20,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:09:20,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:09:20,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:09:20,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:09:20,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:09:20,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:09:20,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:20,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:09:20,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:09:20,714 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:09:20,715 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:09:20,728 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:09:20,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:09:20,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:09:20,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:09:20,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:09:20,730 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:09:20,731 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d [2024-10-31 22:09:21,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:09:21,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:09:21,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:09:21,233 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:09:21,233 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:09:21,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c Unable to find full path for "g++" [2024-10-31 22:09:23,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:09:23,578 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:09:23,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2024-10-31 22:09:23,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/data/76cea42c1/a69d9849d3c8449983e9b1a60364c8fe/FLAG84656eb83 [2024-10-31 22:09:23,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/data/76cea42c1/a69d9849d3c8449983e9b1a60364c8fe [2024-10-31 22:09:23,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:09:23,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:09:23,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:23,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:09:23,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:09:23,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:23" (1/1) ... [2024-10-31 22:09:23,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1119e7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:23, skipping insertion in model container [2024-10-31 22:09:23,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:23" (1/1) ... [2024-10-31 22:09:23,659 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:09:23,922 WARN L251 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2024-10-31 22:09:23,929 WARN L251 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2024-10-31 22:09:23,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:23,947 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:09:23,977 WARN L251 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2024-10-31 22:09:23,980 WARN L251 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_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2024-10-31 22:09:23,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:24,013 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:09:24,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24 WrapperNode [2024-10-31 22:09:24,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:24,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:24,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:09:24,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:09:24,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,067 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2024-10-31 22:09:24,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:24,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:09:24,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:09:24,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:09:24,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,107 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-31 22:09:24,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,132 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:09:24,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:09:24,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:09:24,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:09:24,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (1/1) ... [2024-10-31 22:09:24,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:24,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:24,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:24,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:09:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:09:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:09:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-31 22:09:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:09:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2024-10-31 22:09:24,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2024-10-31 22:09:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2024-10-31 22:09:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2024-10-31 22:09:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-31 22:09:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-31 22:09:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:09:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:09:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-31 22:09:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-31 22:09:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:09:24,402 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:09:24,405 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:09:24,755 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-10-31 22:09:24,755 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:09:24,775 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:09:24,775 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:09:24,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:24 BoogieIcfgContainer [2024-10-31 22:09:24,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:09:24,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:09:24,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:09:24,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:09:24,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:09:23" (1/3) ... [2024-10-31 22:09:24,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd0164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:24, skipping insertion in model container [2024-10-31 22:09:24,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:24" (2/3) ... [2024-10-31 22:09:24,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd0164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:24, skipping insertion in model container [2024-10-31 22:09:24,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:24" (3/3) ... [2024-10-31 22:09:24,790 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1251.c [2024-10-31 22:09:24,809 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:09:24,810 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:09:24,885 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:09:24,893 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;@5722eb89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:09:24,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-31 22:09:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 38 states have (on average 1.4736842105263157) internal successors, (56), 40 states have internal predecessors, (56), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:09:24,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-31 22:09:24,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:24,910 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:24,911 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:24,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:24,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1842866032, now seen corresponding path program 1 times [2024-10-31 22:09:24,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:24,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476431894] [2024-10-31 22:09:24,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:24,934 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 [2024-10-31 22:09:24,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:24,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:24,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:25,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-31 22:09:25,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:25,132 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:25,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:25,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476431894] [2024-10-31 22:09:25,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476431894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:25,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:25,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800656903] [2024-10-31 22:09:25,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:25,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:09:25,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:25,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:09:25,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:09:25,175 INFO L87 Difference]: Start difference. First operand has 53 states, 38 states have (on average 1.4736842105263157) internal successors, (56), 40 states have internal predecessors, (56), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:09:25,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:25,207 INFO L93 Difference]: Finished difference Result 89 states and 128 transitions. [2024-10-31 22:09:25,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:09:25,209 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-10-31 22:09:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:25,218 INFO L225 Difference]: With dead ends: 89 [2024-10-31 22:09:25,219 INFO L226 Difference]: Without dead ends: 49 [2024-10-31 22:09:25,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:09:25,229 INFO L432 NwaCegarLoop]: 72 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, 72 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 [2024-10-31 22:09:25,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-10-31 22:09:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-10-31 22:09:25,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:09:25,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 67 transitions. [2024-10-31 22:09:25,289 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 67 transitions. Word has length 27 [2024-10-31 22:09:25,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:25,294 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 67 transitions. [2024-10-31 22:09:25,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:09:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2024-10-31 22:09:25,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 22:09:25,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:25,297 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:25,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:25,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:25,498 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:25,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:25,499 INFO L85 PathProgramCache]: Analyzing trace with hash -207460078, now seen corresponding path program 1 times [2024-10-31 22:09:25,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:25,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216068420] [2024-10-31 22:09:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:25,501 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 [2024-10-31 22:09:25,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:25,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:25,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:25,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:09:25,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:25,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:25,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:25,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216068420] [2024-10-31 22:09:25,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216068420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:25,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:25,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345038088] [2024-10-31 22:09:25,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:25,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:25,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:25,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:25,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:25,684 INFO L87 Difference]: Start difference. First operand 49 states and 67 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:09:25,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:25,738 INFO L93 Difference]: Finished difference Result 85 states and 115 transitions. [2024-10-31 22:09:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-10-31 22:09:25,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:25,741 INFO L225 Difference]: With dead ends: 85 [2024-10-31 22:09:25,741 INFO L226 Difference]: Without dead ends: 51 [2024-10-31 22:09:25,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:25,746 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:25,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:25,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-31 22:09:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-10-31 22:09:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 38 states have internal predecessors, (49), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:09:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 69 transitions. [2024-10-31 22:09:25,766 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 69 transitions. Word has length 28 [2024-10-31 22:09:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:25,767 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 69 transitions. [2024-10-31 22:09:25,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:09:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2024-10-31 22:09:25,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:09:25,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:25,772 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:25,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:09:25,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:25,973 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:25,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:25,974 INFO L85 PathProgramCache]: Analyzing trace with hash 318152461, now seen corresponding path program 1 times [2024-10-31 22:09:25,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:25,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750052489] [2024-10-31 22:09:25,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:25,975 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 [2024-10-31 22:09:25,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:25,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:25,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (4)] Waiting until timeout for monitored process [2024-10-31 22:09:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:26,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:09:26,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:09:26,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:26,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:26,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750052489] [2024-10-31 22:09:26,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750052489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:26,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:26,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:26,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999410859] [2024-10-31 22:09:26,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:26,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:26,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:26,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:26,159 INFO L87 Difference]: Start difference. First operand 51 states and 69 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:26,198 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2024-10-31 22:09:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:26,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-10-31 22:09:26,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:26,201 INFO L225 Difference]: With dead ends: 74 [2024-10-31 22:09:26,210 INFO L226 Difference]: Without dead ends: 54 [2024-10-31 22:09:26,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:26,212 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:26,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 190 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:26,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-31 22:09:26,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-31 22:09:26,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 40 states have internal predecessors, (51), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:26,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2024-10-31 22:09:26,223 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 33 [2024-10-31 22:09:26,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:26,223 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2024-10-31 22:09:26,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:26,224 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2024-10-31 22:09:26,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:09:26,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:26,226 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:26,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (4)] Ended with exit code 0 [2024-10-31 22:09:26,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:26,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:26,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:26,430 INFO L85 PathProgramCache]: Analyzing trace with hash 810873816, now seen corresponding path program 1 times [2024-10-31 22:09:26,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:26,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537574803] [2024-10-31 22:09:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:26,432 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 [2024-10-31 22:09:26,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:26,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:26,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (5)] Waiting until timeout for monitored process [2024-10-31 22:09:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:26,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:09:26,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:09:26,562 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:26,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:26,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537574803] [2024-10-31 22:09:26,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537574803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:26,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:26,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:26,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499089741] [2024-10-31 22:09:26,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:26,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:26,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:26,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:26,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:26,566 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:26,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:26,612 INFO L93 Difference]: Finished difference Result 77 states and 102 transitions. [2024-10-31 22:09:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:26,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-10-31 22:09:26,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:26,615 INFO L225 Difference]: With dead ends: 77 [2024-10-31 22:09:26,615 INFO L226 Difference]: Without dead ends: 57 [2024-10-31 22:09:26,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:26,617 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:26,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-31 22:09:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2024-10-31 22:09:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 40 states have internal predecessors, (51), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2024-10-31 22:09:26,634 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 34 [2024-10-31 22:09:26,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:26,635 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2024-10-31 22:09:26,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2024-10-31 22:09:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-31 22:09:26,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:26,640 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:26,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (5)] Ended with exit code 0 [2024-10-31 22:09:26,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:26,841 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:26,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:26,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2026721905, now seen corresponding path program 1 times [2024-10-31 22:09:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:26,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759089983] [2024-10-31 22:09:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:26,843 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 [2024-10-31 22:09:26,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:26,845 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:26,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (6)] Waiting until timeout for monitored process [2024-10-31 22:09:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:26,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:09:26,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:09:26,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:26,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:26,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759089983] [2024-10-31 22:09:26,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759089983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:26,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:26,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:26,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339646995] [2024-10-31 22:09:26,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:26,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:26,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:26,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:26,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:26,968 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:26,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:26,998 INFO L93 Difference]: Finished difference Result 77 states and 102 transitions. [2024-10-31 22:09:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:26,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-10-31 22:09:27,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:27,000 INFO L225 Difference]: With dead ends: 77 [2024-10-31 22:09:27,000 INFO L226 Difference]: Without dead ends: 57 [2024-10-31 22:09:27,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:27,002 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:27,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:27,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-31 22:09:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2024-10-31 22:09:27,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 40 states have internal predecessors, (51), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2024-10-31 22:09:27,011 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 35 [2024-10-31 22:09:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:27,012 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2024-10-31 22:09:27,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2024-10-31 22:09:27,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-31 22:09:27,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:27,014 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:27,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (6)] Ended with exit code 0 [2024-10-31 22:09:27,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:27,215 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:27,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:27,215 INFO L85 PathProgramCache]: Analyzing trace with hash -110305028, now seen corresponding path program 1 times [2024-10-31 22:09:27,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:27,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488451292] [2024-10-31 22:09:27,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:27,216 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 [2024-10-31 22:09:27,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:27,218 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:27,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (7)] Waiting until timeout for monitored process [2024-10-31 22:09:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:27,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:09:27,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:27,335 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:09:27,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:27,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:27,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488451292] [2024-10-31 22:09:27,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488451292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:27,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:27,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:27,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392451890] [2024-10-31 22:09:27,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:27,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:27,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:27,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:27,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:27,338 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:27,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:27,377 INFO L93 Difference]: Finished difference Result 77 states and 102 transitions. [2024-10-31 22:09:27,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:27,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-10-31 22:09:27,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:27,382 INFO L225 Difference]: With dead ends: 77 [2024-10-31 22:09:27,382 INFO L226 Difference]: Without dead ends: 57 [2024-10-31 22:09:27,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:27,383 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:27,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-31 22:09:27,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2024-10-31 22:09:27,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 40 states have internal predecessors, (51), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:09:27,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2024-10-31 22:09:27,402 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 36 [2024-10-31 22:09:27,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:27,403 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2024-10-31 22:09:27,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:09:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2024-10-31 22:09:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-31 22:09:27,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:27,407 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:27,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (7)] Ended with exit code 0 [2024-10-31 22:09:27,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:27,608 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:27,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash -403708035, now seen corresponding path program 1 times [2024-10-31 22:09:27,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:27,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150689853] [2024-10-31 22:09:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:27,610 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 [2024-10-31 22:09:27,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:27,611 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:27,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (8)] Waiting until timeout for monitored process [2024-10-31 22:09:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:27,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:09:27,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:28,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:09:28,107 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:09:28,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:28,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150689853] [2024-10-31 22:09:28,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150689853] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:28,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:09:28,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2024-10-31 22:09:28,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990634931] [2024-10-31 22:09:28,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:28,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:09:28,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:28,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:09:28,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:09:28,514 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 22:09:29,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:29,253 INFO L93 Difference]: Finished difference Result 96 states and 131 transitions. [2024-10-31 22:09:29,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:09:29,254 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 36 [2024-10-31 22:09:29,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:29,255 INFO L225 Difference]: With dead ends: 96 [2024-10-31 22:09:29,256 INFO L226 Difference]: Without dead ends: 82 [2024-10-31 22:09:29,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:09:29,259 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 58 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:29,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 542 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:09:29,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-31 22:09:29,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 70. [2024-10-31 22:09:29,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 15 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (19), 17 states have call predecessors, (19), 15 states have call successors, (19) [2024-10-31 22:09:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 99 transitions. [2024-10-31 22:09:29,286 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 99 transitions. Word has length 36 [2024-10-31 22:09:29,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:29,286 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 99 transitions. [2024-10-31 22:09:29,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 22:09:29,287 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2024-10-31 22:09:29,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-31 22:09:29,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:29,294 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:29,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (8)] Ended with exit code 0 [2024-10-31 22:09:29,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:29,495 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:29,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:29,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1637683364, now seen corresponding path program 1 times [2024-10-31 22:09:29,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:29,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613130429] [2024-10-31 22:09:29,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:29,497 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 [2024-10-31 22:09:29,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:29,499 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:29,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (9)] Waiting until timeout for monitored process [2024-10-31 22:09:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:29,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:09:29,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:09:29,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:29,788 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:29,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613130429] [2024-10-31 22:09:29,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613130429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:29,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:29,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:09:29,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137513244] [2024-10-31 22:09:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:29,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:09:29,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:29,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:09:29,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:09:29,791 INFO L87 Difference]: Start difference. First operand 70 states and 99 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 22:09:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:30,083 INFO L93 Difference]: Finished difference Result 119 states and 164 transitions. [2024-10-31 22:09:30,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:09:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-10-31 22:09:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:30,085 INFO L225 Difference]: With dead ends: 119 [2024-10-31 22:09:30,085 INFO L226 Difference]: Without dead ends: 81 [2024-10-31 22:09:30,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:09:30,087 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 22 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:30,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 482 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:09:30,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-31 22:09:30,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 70. [2024-10-31 22:09:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 50 states have (on average 1.28) internal successors, (64), 50 states have internal predecessors, (64), 15 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (19), 17 states have call predecessors, (19), 15 states have call successors, (19) [2024-10-31 22:09:30,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2024-10-31 22:09:30,096 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 38 [2024-10-31 22:09:30,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:30,097 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2024-10-31 22:09:30,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 22:09:30,097 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2024-10-31 22:09:30,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 22:09:30,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:30,099 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:30,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (9)] Ended with exit code 0 [2024-10-31 22:09:30,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:30,299 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:30,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash -987503231, now seen corresponding path program 1 times [2024-10-31 22:09:30,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:30,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479178105] [2024-10-31 22:09:30,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:30,301 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 [2024-10-31 22:09:30,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:30,304 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:30,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (10)] Waiting until timeout for monitored process [2024-10-31 22:09:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:30,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:09:30,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:30,667 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:09:30,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:09:30,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:30,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479178105] [2024-10-31 22:09:30,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479178105] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:30,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:09:30,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-10-31 22:09:30,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192925241] [2024-10-31 22:09:30,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:30,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-31 22:09:30,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:30,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 22:09:30,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:09:30,936 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 15 states have internal predecessors, (39), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-31 22:09:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:31,480 INFO L93 Difference]: Finished difference Result 108 states and 152 transitions. [2024-10-31 22:09:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:09:31,481 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 15 states have internal predecessors, (39), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) Word has length 41 [2024-10-31 22:09:31,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:31,482 INFO L225 Difference]: With dead ends: 108 [2024-10-31 22:09:31,482 INFO L226 Difference]: Without dead ends: 106 [2024-10-31 22:09:31,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:09:31,484 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 36 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:31,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 423 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:09:31,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-31 22:09:31,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 80. [2024-10-31 22:09:31,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 18 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (23), 20 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:09:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2024-10-31 22:09:31,502 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 41 [2024-10-31 22:09:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:31,502 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2024-10-31 22:09:31,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 15 states have internal predecessors, (39), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-31 22:09:31,502 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2024-10-31 22:09:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 22:09:31,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:31,508 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:31,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:31,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:31,709 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:31,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:31,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1947898161, now seen corresponding path program 1 times [2024-10-31 22:09:31,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:31,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938219626] [2024-10-31 22:09:31,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:31,710 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 [2024-10-31 22:09:31,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:31,713 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:31,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (11)] Waiting until timeout for monitored process [2024-10-31 22:09:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:31,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:09:31,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:09:31,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:31,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938219626] [2024-10-31 22:09:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938219626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:31,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:31,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:09:31,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499484079] [2024-10-31 22:09:31,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:31,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:31,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:31,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:31,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:31,810 INFO L87 Difference]: Start difference. First operand 80 states and 113 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:09:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:31,833 INFO L93 Difference]: Finished difference Result 83 states and 116 transitions. [2024-10-31 22:09:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-10-31 22:09:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:31,835 INFO L225 Difference]: With dead ends: 83 [2024-10-31 22:09:31,836 INFO L226 Difference]: Without dead ends: 81 [2024-10-31 22:09:31,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:31,841 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:31,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-31 22:09:31,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2024-10-31 22:09:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 18 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (23), 20 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:09:31,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2024-10-31 22:09:31,856 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 43 [2024-10-31 22:09:31,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:31,856 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2024-10-31 22:09:31,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:09:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2024-10-31 22:09:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 22:09:31,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:31,862 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:31,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (11)] Ended with exit code 0 [2024-10-31 22:09:32,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:32,063 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:32,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:32,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1178252102, now seen corresponding path program 1 times [2024-10-31 22:09:32,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:32,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352597396] [2024-10-31 22:09:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:32,064 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 [2024-10-31 22:09:32,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:32,065 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:32,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (12)] Waiting until timeout for monitored process [2024-10-31 22:09:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:09:32,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:32,170 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-31 22:09:32,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:32,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:32,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352597396] [2024-10-31 22:09:32,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352597396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:32,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:32,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:32,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001536492] [2024-10-31 22:09:32,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:32,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:32,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:32,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:32,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:32,173 INFO L87 Difference]: Start difference. First operand 80 states and 113 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 22:09:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:32,197 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2024-10-31 22:09:32,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:32,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2024-10-31 22:09:32,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:32,199 INFO L225 Difference]: With dead ends: 109 [2024-10-31 22:09:32,200 INFO L226 Difference]: Without dead ends: 84 [2024-10-31 22:09:32,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:32,201 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:32,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 190 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:32,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-31 22:09:32,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-10-31 22:09:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.25) internal successors, (75), 59 states have internal predecessors, (75), 18 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (28), 22 states have call predecessors, (28), 18 states have call successors, (28) [2024-10-31 22:09:32,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 121 transitions. [2024-10-31 22:09:32,211 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 121 transitions. Word has length 46 [2024-10-31 22:09:32,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:32,212 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 121 transitions. [2024-10-31 22:09:32,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 22:09:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2024-10-31 22:09:32,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 22:09:32,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:32,213 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:32,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (12)] Ended with exit code 0 [2024-10-31 22:09:32,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:32,418 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:32,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:32,418 INFO L85 PathProgramCache]: Analyzing trace with hash -101611576, now seen corresponding path program 1 times [2024-10-31 22:09:32,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:32,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101786988] [2024-10-31 22:09:32,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:32,419 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 [2024-10-31 22:09:32,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:32,420 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:32,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (13)] Waiting until timeout for monitored process [2024-10-31 22:09:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-31 22:09:32,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-31 22:09:33,059 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-31 22:09:34,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:34,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101786988] [2024-10-31 22:09:34,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101786988] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:34,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:09:34,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2024-10-31 22:09:34,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791503616] [2024-10-31 22:09:34,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:34,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-31 22:09:34,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:34,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-31 22:09:34,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-10-31 22:09:34,609 INFO L87 Difference]: Start difference. First operand 84 states and 121 transitions. Second operand has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 19 states have internal predecessors, (49), 7 states have call successors, (11), 1 states have call predecessors, (11), 4 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2024-10-31 22:09:36,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:36,226 INFO L93 Difference]: Finished difference Result 147 states and 202 transitions. [2024-10-31 22:09:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:09:36,227 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 19 states have internal predecessors, (49), 7 states have call successors, (11), 1 states have call predecessors, (11), 4 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) Word has length 46 [2024-10-31 22:09:36,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:36,228 INFO L225 Difference]: With dead ends: 147 [2024-10-31 22:09:36,228 INFO L226 Difference]: Without dead ends: 110 [2024-10-31 22:09:36,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2024-10-31 22:09:36,230 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 80 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:36,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 752 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-31 22:09:36,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-31 22:09:36,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 84. [2024-10-31 22:09:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.25) internal successors, (75), 59 states have internal predecessors, (75), 18 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (26), 22 states have call predecessors, (26), 18 states have call successors, (26) [2024-10-31 22:09:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 119 transitions. [2024-10-31 22:09:36,248 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 119 transitions. Word has length 46 [2024-10-31 22:09:36,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:36,249 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 119 transitions. [2024-10-31 22:09:36,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 19 states have internal predecessors, (49), 7 states have call successors, (11), 1 states have call predecessors, (11), 4 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2024-10-31 22:09:36,249 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2024-10-31 22:09:36,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-31 22:09:36,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:36,254 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:36,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (13)] Ended with exit code 0 [2024-10-31 22:09:36,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:36,455 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:36,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:36,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1695459100, now seen corresponding path program 1 times [2024-10-31 22:09:36,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:36,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609173554] [2024-10-31 22:09:36,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:36,456 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 [2024-10-31 22:09:36,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:36,459 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:36,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (14)] Waiting until timeout for monitored process [2024-10-31 22:09:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:36,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:09:36,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:09:36,570 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:36,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:36,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609173554] [2024-10-31 22:09:36,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609173554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:36,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:36,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:36,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109588834] [2024-10-31 22:09:36,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:36,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:36,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:36,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:36,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:36,573 INFO L87 Difference]: Start difference. First operand 84 states and 119 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 22:09:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:36,606 INFO L93 Difference]: Finished difference Result 113 states and 159 transitions. [2024-10-31 22:09:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:36,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2024-10-31 22:09:36,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:36,608 INFO L225 Difference]: With dead ends: 113 [2024-10-31 22:09:36,608 INFO L226 Difference]: Without dead ends: 88 [2024-10-31 22:09:36,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:36,610 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:36,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:36,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-31 22:09:36,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-10-31 22:09:36,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 61 states have internal predecessors, (77), 18 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (31), 23 states have call predecessors, (31), 18 states have call successors, (31) [2024-10-31 22:09:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 126 transitions. [2024-10-31 22:09:36,619 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 126 transitions. Word has length 48 [2024-10-31 22:09:36,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:36,619 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 126 transitions. [2024-10-31 22:09:36,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 22:09:36,620 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 126 transitions. [2024-10-31 22:09:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-31 22:09:36,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:36,621 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:36,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (14)] Ended with exit code 0 [2024-10-31 22:09:36,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:36,821 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:36,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:36,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1319644518, now seen corresponding path program 1 times [2024-10-31 22:09:36,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:36,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480092534] [2024-10-31 22:09:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:36,823 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 [2024-10-31 22:09:36,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:36,824 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:36,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (15)] Waiting until timeout for monitored process [2024-10-31 22:09:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:36,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-31 22:09:36,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-31 22:09:37,508 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:38,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:38,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480092534] [2024-10-31 22:09:38,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480092534] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:38,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1514472948] [2024-10-31 22:09:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:38,491 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-31 22:09:38,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/cvc4 [2024-10-31 22:09:38,494 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-31 22:09:38,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-10-31 22:09:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:38,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-31 22:09:38,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:39,294 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-31 22:09:39,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:39,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1514472948] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:39,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:09:39,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 13 [2024-10-31 22:09:39,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793420971] [2024-10-31 22:09:39,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:39,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:09:39,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:39,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:09:39,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:09:39,643 INFO L87 Difference]: Start difference. First operand 87 states and 126 transitions. Second operand has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-31 22:09:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:40,384 INFO L93 Difference]: Finished difference Result 139 states and 200 transitions. [2024-10-31 22:09:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:09:40,385 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 48 [2024-10-31 22:09:40,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:40,387 INFO L225 Difference]: With dead ends: 139 [2024-10-31 22:09:40,387 INFO L226 Difference]: Without dead ends: 137 [2024-10-31 22:09:40,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2024-10-31 22:09:40,388 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 75 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:40,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 482 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:09:40,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-10-31 22:09:40,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 90. [2024-10-31 22:09:40,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.25) internal successors, (80), 62 states have internal predecessors, (80), 19 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (35), 25 states have call predecessors, (35), 19 states have call successors, (35) [2024-10-31 22:09:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 134 transitions. [2024-10-31 22:09:40,421 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 134 transitions. Word has length 48 [2024-10-31 22:09:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:40,421 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 134 transitions. [2024-10-31 22:09:40,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-31 22:09:40,421 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 134 transitions. [2024-10-31 22:09:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-31 22:09:40,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:40,423 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:40,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (15)] Ended with exit code 0 [2024-10-31 22:09:40,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-10-31 22:09:40,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/cvc4 --incremental --print-success --lang smt [2024-10-31 22:09:40,823 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:40,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:40,824 INFO L85 PathProgramCache]: Analyzing trace with hash -458335062, now seen corresponding path program 1 times [2024-10-31 22:09:40,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:40,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936718106] [2024-10-31 22:09:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:40,825 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 [2024-10-31 22:09:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:40,829 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:40,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (17)] Waiting until timeout for monitored process [2024-10-31 22:09:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:40,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:09:40,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:41,185 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:09:41,185 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-31 22:09:42,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:42,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936718106] [2024-10-31 22:09:42,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936718106] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:42,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:09:42,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2024-10-31 22:09:42,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255944554] [2024-10-31 22:09:42,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:42,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:09:42,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:09:42,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:09:42,484 INFO L87 Difference]: Start difference. First operand 90 states and 134 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 5 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:09:42,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:42,885 INFO L93 Difference]: Finished difference Result 110 states and 156 transitions. [2024-10-31 22:09:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:09:42,886 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 5 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2024-10-31 22:09:42,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:42,887 INFO L225 Difference]: With dead ends: 110 [2024-10-31 22:09:42,887 INFO L226 Difference]: Without dead ends: 89 [2024-10-31 22:09:42,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:09:42,889 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 41 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:42,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 468 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:09:42,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-31 22:09:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2024-10-31 22:09:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 60 states have internal predecessors, (73), 18 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (31), 22 states have call predecessors, (31), 18 states have call successors, (31) [2024-10-31 22:09:42,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 122 transitions. [2024-10-31 22:09:42,898 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 122 transitions. Word has length 48 [2024-10-31 22:09:42,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:42,898 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 122 transitions. [2024-10-31 22:09:42,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 5 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:09:42,899 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2024-10-31 22:09:42,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-31 22:09:42,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:42,900 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:42,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:43,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:09:43,101 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:43,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1205492313, now seen corresponding path program 1 times [2024-10-31 22:09:43,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:09:43,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798550350] [2024-10-31 22:09:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:43,102 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 [2024-10-31 22:09:43,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:09:43,103 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:09:43,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (18)] Waiting until timeout for monitored process [2024-10-31 22:09:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:43,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:09:43,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:43,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:09:43,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:43,627 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-31 22:09:43,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:09:43,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798550350] [2024-10-31 22:09:43,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798550350] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:43,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:09:43,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 14 [2024-10-31 22:09:43,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749377159] [2024-10-31 22:09:43,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:43,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:09:43,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:09:43,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:09:43,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:09:43,630 INFO L87 Difference]: Start difference. First operand 85 states and 122 transitions. Second operand has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 10 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-31 22:09:44,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:44,041 INFO L93 Difference]: Finished difference Result 117 states and 153 transitions. [2024-10-31 22:09:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:09:44,042 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 10 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 48 [2024-10-31 22:09:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:44,043 INFO L225 Difference]: With dead ends: 117 [2024-10-31 22:09:44,043 INFO L226 Difference]: Without dead ends: 75 [2024-10-31 22:09:44,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:09:44,044 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 41 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:44,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 507 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:09:44,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-31 22:09:44,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2024-10-31 22:09:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 53 states have internal predecessors, (60), 14 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (23), 16 states have call predecessors, (23), 14 states have call successors, (23) [2024-10-31 22:09:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 97 transitions. [2024-10-31 22:09:44,051 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 97 transitions. Word has length 48 [2024-10-31 22:09:44,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:44,051 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 97 transitions. [2024-10-31 22:09:44,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 10 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-31 22:09:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 97 transitions. [2024-10-31 22:09:44,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-31 22:09:44,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:44,053 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:44,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48e2c857-abd3-4a7e-aa67-f6aaa5a20b28/bin/uautomizer-verify-4GaUIPS5ZU/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 (18)] Ended with exit code 0