./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX --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 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:54:40,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:54:40,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:54:40,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:54:40,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:54:40,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:54:40,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:54:40,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:54:40,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:54:40,469 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:54:40,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:54:40,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:54:40,473 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:54:40,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:54:40,478 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:54:40,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:54:40,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:54:40,480 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:54:40,480 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:54:40,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:54:40,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:54:40,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:54:40,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:54:40,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:54:40,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:54:40,488 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:54:40,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:54:40,490 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:54:40,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:54:40,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:54:40,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:54:40,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:54:40,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:54:40,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:54:40,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:54:40,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:54:40,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:54:40,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:54:40,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:54:40,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:54:40,513 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:54:40,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:54:40,514 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_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c [2024-11-08 18:54:40,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:54:40,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:54:40,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:54:40,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:54:40,965 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:54:40,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i Unable to find full path for "g++" [2024-11-08 18:54:43,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:54:43,891 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:54:43,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-11-08 18:54:43,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/data/817eac0a0/5c3c1d0f3a3f4bd286638b3b00915c6f/FLAG5c788cf99 [2024-11-08 18:54:44,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/data/817eac0a0/5c3c1d0f3a3f4bd286638b3b00915c6f [2024-11-08 18:54:44,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:54:44,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:54:44,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:54:44,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:54:44,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:54:44,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:44,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b401cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44, skipping insertion in model container [2024-11-08 18:54:44,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:44,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:54:44,604 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-11-08 18:54:44,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:54:44,703 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:54:44,717 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-11-08 18:54:44,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:54:44,833 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:54:44,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44 WrapperNode [2024-11-08 18:54:44,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:54:44,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:54:44,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:54:44,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:54:44,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:44,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:44,930 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 414 [2024-11-08 18:54:44,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:54:44,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:54:44,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:54:44,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:54:44,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:44,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:44,960 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:44,988 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 20, 22, 33, 33]. 30 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 2, 2, 4, 2]. The 16 writes are split as follows [0, 2, 5, 6, 3]. [2024-11-08 18:54:44,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:44,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:45,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:45,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:45,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:45,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:45,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:54:45,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:54:45,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:54:45,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:54:45,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (1/1) ... [2024-11-08 18:54:45,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:54:45,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:45,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:54:45,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:54:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:54:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 18:54:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 18:54:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 18:54:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 18:54:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 18:54:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:54:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:54:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 18:54:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 18:54:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 18:54:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 18:54:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 18:54:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:54:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:54:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:54:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:54:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:54:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 18:54:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 18:54:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 18:54:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 18:54:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-08 18:54:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:54:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:54:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:54:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:54:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:54:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:54:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:54:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:54:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:54:45,424 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:54:45,426 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:54:46,174 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-08 18:54:46,174 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:54:46,193 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:54:46,194 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:54:46,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:54:46 BoogieIcfgContainer [2024-11-08 18:54:46,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:54:46,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:54:46,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:54:46,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:54:46,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:54:44" (1/3) ... [2024-11-08 18:54:46,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48437eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:54:46, skipping insertion in model container [2024-11-08 18:54:46,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:44" (2/3) ... [2024-11-08 18:54:46,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48437eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:54:46, skipping insertion in model container [2024-11-08 18:54:46,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:54:46" (3/3) ... [2024-11-08 18:54:46,207 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-31.i [2024-11-08 18:54:46,232 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:54:46,233 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:54:46,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:54:46,342 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;@16ec9f99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:54:46,343 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:54:46,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:54:46,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:54:46,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:46,375 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:46,375 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:46,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash -872409101, now seen corresponding path program 1 times [2024-11-08 18:54:46,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:46,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5401432] [2024-11-08 18:54:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:46,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:46,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:46,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5401432] [2024-11-08 18:54:46,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5401432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:46,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:46,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:54:46,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89371030] [2024-11-08 18:54:46,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:46,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:54:46,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:54:46,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:54:46,991 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:47,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:47,032 INFO L93 Difference]: Finished difference Result 167 states and 261 transitions. [2024-11-08 18:54:47,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:54:47,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-11-08 18:54:47,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:47,047 INFO L225 Difference]: With dead ends: 167 [2024-11-08 18:54:47,047 INFO L226 Difference]: Without dead ends: 83 [2024-11-08 18:54:47,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:54:47,056 INFO L432 NwaCegarLoop]: 121 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, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:47,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:54:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-08 18:54:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-08 18:54:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 70 states have internal predecessors, (99), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:54:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 121 transitions. [2024-11-08 18:54:47,138 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 121 transitions. Word has length 94 [2024-11-08 18:54:47,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:47,139 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 121 transitions. [2024-11-08 18:54:47,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:47,140 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 121 transitions. [2024-11-08 18:54:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:54:47,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:47,145 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:47,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:54:47,146 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:47,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:47,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1484358317, now seen corresponding path program 1 times [2024-11-08 18:54:47,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:47,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503835883] [2024-11-08 18:54:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:47,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:47,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:47,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503835883] [2024-11-08 18:54:47,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503835883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:47,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:47,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:47,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427933035] [2024-11-08 18:54:47,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:47,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:47,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:47,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:47,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:47,824 INFO L87 Difference]: Start difference. First operand 83 states and 121 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:47,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:47,857 INFO L93 Difference]: Finished difference Result 163 states and 239 transitions. [2024-11-08 18:54:47,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:47,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-11-08 18:54:47,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:47,861 INFO L225 Difference]: With dead ends: 163 [2024-11-08 18:54:47,861 INFO L226 Difference]: Without dead ends: 83 [2024-11-08 18:54:47,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:47,864 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:47,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:54:47,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-08 18:54:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-08 18:54:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4) internal successors, (98), 70 states have internal predecessors, (98), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:54:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2024-11-08 18:54:47,881 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 94 [2024-11-08 18:54:47,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:47,886 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2024-11-08 18:54:47,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2024-11-08 18:54:47,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:54:47,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:47,890 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:47,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:54:47,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:47,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:47,895 INFO L85 PathProgramCache]: Analyzing trace with hash -103989585, now seen corresponding path program 1 times [2024-11-08 18:54:47,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:47,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279379089] [2024-11-08 18:54:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:47,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:50,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:50,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279379089] [2024-11-08 18:54:50,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279379089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:50,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:50,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:54:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717331564] [2024-11-08 18:54:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:50,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:54:50,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:50,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:54:50,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:54:50,548 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:51,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:51,044 INFO L93 Difference]: Finished difference Result 222 states and 320 transitions. [2024-11-08 18:54:51,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:54:51,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-11-08 18:54:51,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:51,048 INFO L225 Difference]: With dead ends: 222 [2024-11-08 18:54:51,048 INFO L226 Difference]: Without dead ends: 142 [2024-11-08 18:54:51,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:54:51,050 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 79 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:51,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 719 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:54:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-08 18:54:51,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2024-11-08 18:54:51,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.3898305084745763) internal successors, (164), 119 states have internal predecessors, (164), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:54:51,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 200 transitions. [2024-11-08 18:54:51,086 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 200 transitions. Word has length 94 [2024-11-08 18:54:51,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:51,086 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 200 transitions. [2024-11-08 18:54:51,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:51,092 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 200 transitions. [2024-11-08 18:54:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:54:51,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:51,094 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:51,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:54:51,094 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:51,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:51,095 INFO L85 PathProgramCache]: Analyzing trace with hash -542550582, now seen corresponding path program 1 times [2024-11-08 18:54:51,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:51,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288129040] [2024-11-08 18:54:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:51,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,848 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:51,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:51,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288129040] [2024-11-08 18:54:51,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288129040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:51,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:51,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:54:51,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713568803] [2024-11-08 18:54:51,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:51,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:54:51,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:51,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:54:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:51,852 INFO L87 Difference]: Start difference. First operand 139 states and 200 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:51,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:51,986 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2024-11-08 18:54:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:54:51,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-11-08 18:54:51,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:51,993 INFO L225 Difference]: With dead ends: 275 [2024-11-08 18:54:51,993 INFO L226 Difference]: Without dead ends: 139 [2024-11-08 18:54:51,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:52,000 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:52,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 425 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:54:52,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-08 18:54:52,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-08 18:54:52,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 119 states have internal predecessors, (162), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:54:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 198 transitions. [2024-11-08 18:54:52,035 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 198 transitions. Word has length 96 [2024-11-08 18:54:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:52,036 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 198 transitions. [2024-11-08 18:54:52,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 198 transitions. [2024-11-08 18:54:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:54:52,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:52,042 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:52,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:54:52,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:52,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:52,043 INFO L85 PathProgramCache]: Analyzing trace with hash -935577592, now seen corresponding path program 1 times [2024-11-08 18:54:52,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:52,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581224913] [2024-11-08 18:54:52,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:52,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:53,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:53,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581224913] [2024-11-08 18:54:53,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581224913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:53,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:53,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:54:53,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516305680] [2024-11-08 18:54:53,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:53,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:54:53,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:53,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:54:53,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:54:53,279 INFO L87 Difference]: Start difference. First operand 139 states and 198 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:53,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:53,663 INFO L93 Difference]: Finished difference Result 304 states and 433 transitions. [2024-11-08 18:54:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:54:53,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-08 18:54:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:53,669 INFO L225 Difference]: With dead ends: 304 [2024-11-08 18:54:53,670 INFO L226 Difference]: Without dead ends: 168 [2024-11-08 18:54:53,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:54:53,672 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 86 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:53,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 674 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:54:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-08 18:54:53,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 113. [2024-11-08 18:54:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 93 states have internal predecessors, (123), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:54:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 159 transitions. [2024-11-08 18:54:53,704 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 159 transitions. Word has length 96 [2024-11-08 18:54:53,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:53,705 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 159 transitions. [2024-11-08 18:54:53,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:53,706 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 159 transitions. [2024-11-08 18:54:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:54:53,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:53,707 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:53,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:54:53,708 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:53,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:53,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1848799575, now seen corresponding path program 1 times [2024-11-08 18:54:53,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:53,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451518072] [2024-11-08 18:54:53,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:53,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:54,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:54,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451518072] [2024-11-08 18:54:54,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451518072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:54,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:54,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:54:54,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7221874] [2024-11-08 18:54:54,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:54,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:54:54,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:54,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:54:54,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:54,298 INFO L87 Difference]: Start difference. First operand 113 states and 159 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:54,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:54,493 INFO L93 Difference]: Finished difference Result 249 states and 343 transitions. [2024-11-08 18:54:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:54:54,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-11-08 18:54:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:54,496 INFO L225 Difference]: With dead ends: 249 [2024-11-08 18:54:54,496 INFO L226 Difference]: Without dead ends: 159 [2024-11-08 18:54:54,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:54:54,501 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 110 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:54,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 520 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:54:54,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-08 18:54:54,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 156. [2024-11-08 18:54:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 131 states have (on average 1.3282442748091603) internal successors, (174), 133 states have internal predecessors, (174), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:54:54,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 214 transitions. [2024-11-08 18:54:54,548 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 214 transitions. Word has length 96 [2024-11-08 18:54:54,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:54,550 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 214 transitions. [2024-11-08 18:54:54,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 214 transitions. [2024-11-08 18:54:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:54:54,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:54,552 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:54,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:54:54,553 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:54,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:54,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1158690120, now seen corresponding path program 1 times [2024-11-08 18:54:54,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:54,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612436847] [2024-11-08 18:54:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:54,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,671 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:54,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:54,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612436847] [2024-11-08 18:54:54,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612436847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:54,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:54,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:54,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383847105] [2024-11-08 18:54:54,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:54,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:54,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:54,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:54,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:54,674 INFO L87 Difference]: Start difference. First operand 156 states and 214 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:54,710 INFO L93 Difference]: Finished difference Result 287 states and 396 transitions. [2024-11-08 18:54:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:54,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-08 18:54:54,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:54,713 INFO L225 Difference]: With dead ends: 287 [2024-11-08 18:54:54,713 INFO L226 Difference]: Without dead ends: 158 [2024-11-08 18:54:54,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:54,715 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 229 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 [2024-11-08 18:54:54,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:54:54,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-08 18:54:54,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-08 18:54:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 133 states have (on average 1.3233082706766917) internal successors, (176), 135 states have internal predecessors, (176), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:54:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 216 transitions. [2024-11-08 18:54:54,739 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 216 transitions. Word has length 97 [2024-11-08 18:54:54,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:54,740 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 216 transitions. [2024-11-08 18:54:54,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:54,740 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 216 transitions. [2024-11-08 18:54:54,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:54:54,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:54,742 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:54,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:54:54,742 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:54,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:54,743 INFO L85 PathProgramCache]: Analyzing trace with hash -900524682, now seen corresponding path program 1 times [2024-11-08 18:54:54,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:54,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709665098] [2024-11-08 18:54:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:54,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:54,978 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:54,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:54,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709665098] [2024-11-08 18:54:54,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709665098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:54,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:54,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:54:54,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438642817] [2024-11-08 18:54:54,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:54,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:54:54,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:54,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:54:54,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:54,983 INFO L87 Difference]: Start difference. First operand 158 states and 216 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:55,056 INFO L93 Difference]: Finished difference Result 295 states and 404 transitions. [2024-11-08 18:54:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:54:55,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-08 18:54:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:55,059 INFO L225 Difference]: With dead ends: 295 [2024-11-08 18:54:55,059 INFO L226 Difference]: Without dead ends: 164 [2024-11-08 18:54:55,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:55,060 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:55,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:54:55,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-08 18:54:55,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2024-11-08 18:54:55,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 137 states have (on average 1.313868613138686) internal successors, (180), 139 states have internal predecessors, (180), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:54:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 220 transitions. [2024-11-08 18:54:55,089 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 220 transitions. Word has length 97 [2024-11-08 18:54:55,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:55,089 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 220 transitions. [2024-11-08 18:54:55,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2024-11-08 18:54:55,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:54:55,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:55,093 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:55,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:54:55,093 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:55,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:55,094 INFO L85 PathProgramCache]: Analyzing trace with hash -571884106, now seen corresponding path program 1 times [2024-11-08 18:54:55,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:55,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265963474] [2024-11-08 18:54:55,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:55,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,531 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:55,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:55,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265963474] [2024-11-08 18:54:55,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265963474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:55,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:55,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:54:55,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331361898] [2024-11-08 18:54:55,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:55,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:54:55,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:55,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:54:55,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:55,534 INFO L87 Difference]: Start difference. First operand 162 states and 220 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:55,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:55,740 INFO L93 Difference]: Finished difference Result 295 states and 396 transitions. [2024-11-08 18:54:55,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:54:55,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2024-11-08 18:54:55,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:55,742 INFO L225 Difference]: With dead ends: 295 [2024-11-08 18:54:55,742 INFO L226 Difference]: Without dead ends: 160 [2024-11-08 18:54:55,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:54:55,744 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 46 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:55,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 534 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:54:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-08 18:54:55,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 123. [2024-11-08 18:54:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.29) internal successors, (129), 101 states have internal predecessors, (129), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:54:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 165 transitions. [2024-11-08 18:54:55,779 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 165 transitions. Word has length 97 [2024-11-08 18:54:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:55,780 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 165 transitions. [2024-11-08 18:54:55,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:54:55,780 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 165 transitions. [2024-11-08 18:54:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 18:54:55,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:55,782 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:55,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:54:55,783 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:55,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:55,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1040292947, now seen corresponding path program 1 times [2024-11-08 18:54:55,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:55,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849664996] [2024-11-08 18:54:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:55,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,395 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:57,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:57,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849664996] [2024-11-08 18:54:57,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849664996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:57,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:57,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:54:57,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012986775] [2024-11-08 18:54:57,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:57,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:54:57,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:57,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:54:57,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:54:57,398 INFO L87 Difference]: Start difference. First operand 123 states and 165 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:57,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:57,974 INFO L93 Difference]: Finished difference Result 310 states and 414 transitions. [2024-11-08 18:54:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:54:57,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 98 [2024-11-08 18:54:57,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:57,976 INFO L225 Difference]: With dead ends: 310 [2024-11-08 18:54:57,977 INFO L226 Difference]: Without dead ends: 214 [2024-11-08 18:54:57,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:54:57,978 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 96 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:57,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 938 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:54:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-08 18:54:58,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2024-11-08 18:54:58,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 176 states have (on average 1.2954545454545454) internal successors, (228), 178 states have internal predecessors, (228), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-08 18:54:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2024-11-08 18:54:58,005 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 98 [2024-11-08 18:54:58,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:58,006 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2024-11-08 18:54:58,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2024-11-08 18:54:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:54:58,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:58,008 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:58,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:54:58,008 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:58,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash -362042866, now seen corresponding path program 1 times [2024-11-08 18:54:58,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:58,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790706513] [2024-11-08 18:54:58,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:58,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:58,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:58,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790706513] [2024-11-08 18:54:58,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790706513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:58,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:58,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:54:58,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972822137] [2024-11-08 18:54:58,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:58,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:54:58,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:58,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:54:58,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:58,357 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:58,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:58,588 INFO L93 Difference]: Finished difference Result 530 states and 702 transitions. [2024-11-08 18:54:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:54:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:54:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:58,591 INFO L225 Difference]: With dead ends: 530 [2024-11-08 18:54:58,592 INFO L226 Difference]: Without dead ends: 346 [2024-11-08 18:54:58,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:54:58,593 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 71 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:58,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 780 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:54:58,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-08 18:54:58,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 219. [2024-11-08 18:54:58,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 184 states have (on average 1.3043478260869565) internal successors, (240), 186 states have internal predecessors, (240), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-08 18:54:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 294 transitions. [2024-11-08 18:54:58,630 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 294 transitions. Word has length 99 [2024-11-08 18:54:58,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:58,631 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 294 transitions. [2024-11-08 18:54:58,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:58,631 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 294 transitions. [2024-11-08 18:54:58,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:54:58,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:58,633 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:58,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:54:58,633 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:58,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1383111220, now seen corresponding path program 1 times [2024-11-08 18:54:58,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:58,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513393416] [2024-11-08 18:54:58,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:58,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:59,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:59,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513393416] [2024-11-08 18:54:59,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513393416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:59,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:59,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:54:59,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636994943] [2024-11-08 18:54:59,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:59,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:54:59,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:54:59,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:54:59,091 INFO L87 Difference]: Start difference. First operand 219 states and 294 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:59,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:59,476 INFO L93 Difference]: Finished difference Result 542 states and 721 transitions. [2024-11-08 18:54:59,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:54:59,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:54:59,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:59,481 INFO L225 Difference]: With dead ends: 542 [2024-11-08 18:54:59,482 INFO L226 Difference]: Without dead ends: 350 [2024-11-08 18:54:59,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:54:59,483 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 73 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:59,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 667 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:54:59,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-08 18:54:59,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 203. [2024-11-08 18:54:59,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 176 states have (on average 1.3238636363636365) internal successors, (233), 177 states have internal predecessors, (233), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:54:59,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 273 transitions. [2024-11-08 18:54:59,533 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 273 transitions. Word has length 99 [2024-11-08 18:54:59,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:59,534 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 273 transitions. [2024-11-08 18:54:59,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:59,534 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 273 transitions. [2024-11-08 18:54:59,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:54:59,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:59,536 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:54:59,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:54:59,536 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:59,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:59,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1323508174, now seen corresponding path program 1 times [2024-11-08 18:54:59,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:59,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689359562] [2024-11-08 18:54:59,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:59,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:54:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:54:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:54:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:54:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:54:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:54:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:54:59,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:59,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689359562] [2024-11-08 18:54:59,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689359562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:59,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:59,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:54:59,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819466691] [2024-11-08 18:54:59,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:59,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:54:59,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:59,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:54:59,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:59,836 INFO L87 Difference]: Start difference. First operand 203 states and 273 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:54:59,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:59,990 INFO L93 Difference]: Finished difference Result 462 states and 615 transitions. [2024-11-08 18:54:59,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:54:59,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:54:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:59,992 INFO L225 Difference]: With dead ends: 462 [2024-11-08 18:54:59,992 INFO L226 Difference]: Without dead ends: 262 [2024-11-08 18:54:59,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:59,994 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 43 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:59,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 472 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:54:59,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-08 18:55:00,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 191. [2024-11-08 18:55:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 164 states have (on average 1.298780487804878) internal successors, (213), 165 states have internal predecessors, (213), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:00,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 253 transitions. [2024-11-08 18:55:00,027 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 253 transitions. Word has length 99 [2024-11-08 18:55:00,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:00,029 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 253 transitions. [2024-11-08 18:55:00,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:00,030 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 253 transitions. [2024-11-08 18:55:00,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:55:00,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:00,031 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:00,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:55:00,032 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:00,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash 358783115, now seen corresponding path program 1 times [2024-11-08 18:55:00,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:00,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740938808] [2024-11-08 18:55:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:00,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:55:00,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582406197] [2024-11-08 18:55:00,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:00,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:00,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:00,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:00,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:55:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:00,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:55:00,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:00,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:00,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 41 [2024-11-08 18:55:00,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 64 [2024-11-08 18:55:00,985 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:00,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 55 [2024-11-08 18:55:01,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:01,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 36 [2024-11-08 18:55:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:01,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:01,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:01,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740938808] [2024-11-08 18:55:01,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 18:55:01,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582406197] [2024-11-08 18:55:01,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582406197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:01,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:01,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:55:01,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986791576] [2024-11-08 18:55:01,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:01,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:55:01,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:01,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:55:01,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:55:01,237 INFO L87 Difference]: Start difference. First operand 191 states and 253 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:01,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:01,731 INFO L93 Difference]: Finished difference Result 488 states and 648 transitions. [2024-11-08 18:55:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:55:01,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:55:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:01,734 INFO L225 Difference]: With dead ends: 488 [2024-11-08 18:55:01,734 INFO L226 Difference]: Without dead ends: 300 [2024-11-08 18:55:01,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:55:01,736 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 203 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:01,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 597 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:55:01,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-08 18:55:01,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 224. [2024-11-08 18:55:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 197 states have (on average 1.299492385786802) internal successors, (256), 198 states have internal predecessors, (256), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 296 transitions. [2024-11-08 18:55:01,768 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 296 transitions. Word has length 99 [2024-11-08 18:55:01,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:01,769 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 296 transitions. [2024-11-08 18:55:01,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:01,770 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 296 transitions. [2024-11-08 18:55:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:55:01,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:01,771 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:01,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:55:01,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 18:55:01,976 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:01,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:01,976 INFO L85 PathProgramCache]: Analyzing trace with hash 472976705, now seen corresponding path program 1 times [2024-11-08 18:55:01,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:01,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521354433] [2024-11-08 18:55:01,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:01,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:55:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:55:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:55:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:55:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:55:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:55:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:55:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:55:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:55:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:55:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:55:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:02,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:02,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521354433] [2024-11-08 18:55:02,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521354433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:02,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:02,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:55:02,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108276697] [2024-11-08 18:55:02,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:02,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:55:02,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:02,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:55:02,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:55:02,228 INFO L87 Difference]: Start difference. First operand 224 states and 296 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:02,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:02,303 INFO L93 Difference]: Finished difference Result 453 states and 599 transitions. [2024-11-08 18:55:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:55:02,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2024-11-08 18:55:02,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:02,306 INFO L225 Difference]: With dead ends: 453 [2024-11-08 18:55:02,306 INFO L226 Difference]: Without dead ends: 232 [2024-11-08 18:55:02,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:55:02,307 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:02,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:55:02,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-08 18:55:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 229. [2024-11-08 18:55:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 202 states have (on average 1.2920792079207921) internal successors, (261), 203 states have internal predecessors, (261), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 301 transitions. [2024-11-08 18:55:02,334 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 301 transitions. Word has length 100 [2024-11-08 18:55:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:02,334 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 301 transitions. [2024-11-08 18:55:02,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 301 transitions. [2024-11-08 18:55:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:55:02,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:02,336 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:02,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:55:02,337 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:02,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:02,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1151123112, now seen corresponding path program 1 times [2024-11-08 18:55:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:02,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914321794] [2024-11-08 18:55:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:02,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:55:02,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776886923] [2024-11-08 18:55:02,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:02,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:02,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:02,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:02,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:55:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:55:02,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:55:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:55:03,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:55:03,010 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:55:03,011 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:55:03,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:55:03,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:03,217 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:03,329 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:55:03,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:55:03 BoogieIcfgContainer [2024-11-08 18:55:03,340 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:55:03,342 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:55:03,343 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:55:03,343 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:55:03,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:54:46" (3/4) ... [2024-11-08 18:55:03,349 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:55:03,354 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:55:03,355 INFO L158 Benchmark]: Toolchain (without parser) took 19153.00ms. Allocated memory was 127.9MB in the beginning and 362.8MB in the end (delta: 234.9MB). Free memory was 68.2MB in the beginning and 278.1MB in the end (delta: -209.9MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-11-08 18:55:03,355 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 127.9MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:55:03,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.46ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 68.0MB in the beginning and 132.0MB in the end (delta: -64.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-11-08 18:55:03,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.21ms. Allocated memory is still 174.1MB. Free memory was 132.0MB in the beginning and 128.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:55:03,357 INFO L158 Benchmark]: Boogie Preprocessor took 103.38ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 123.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:55:03,357 INFO L158 Benchmark]: RCFGBuilder took 1158.24ms. Allocated memory is still 174.1MB. Free memory was 123.7MB in the beginning and 92.8MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-08 18:55:03,361 INFO L158 Benchmark]: TraceAbstraction took 17142.31ms. Allocated memory was 174.1MB in the beginning and 362.8MB in the end (delta: 188.7MB). Free memory was 92.2MB in the beginning and 278.1MB in the end (delta: -185.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-11-08 18:55:03,362 INFO L158 Benchmark]: Witness Printer took 12.07ms. Allocated memory is still 362.8MB. Free memory is still 278.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:55:03,364 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 127.9MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.46ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 68.0MB in the beginning and 132.0MB in the end (delta: -64.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.21ms. Allocated memory is still 174.1MB. Free memory was 132.0MB in the beginning and 128.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.38ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 123.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1158.24ms. Allocated memory is still 174.1MB. Free memory was 123.7MB in the beginning and 92.8MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 17142.31ms. Allocated memory was 174.1MB in the beginning and 362.8MB in the end (delta: 188.7MB). Free memory was 92.2MB in the beginning and 278.1MB in the end (delta: -185.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 12.07ms. Allocated memory is still 362.8MB. Free memory is still 278.1MB. 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: 19]: 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 someBinaryDOUBLEComparisonOperation at line 98. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L34] double last_1_double_Array_0_0_ = 0.97; [L35] signed long int last_1_signed_long_int_Array_0_1__0_ = 4; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L102] isInitial = 1 [L103] FCALL initially() [L104] COND TRUE 1 [L105] CALL updateLastVariables() [L94] EXPR double_Array_0[0] [L94] last_1_double_Array_0_0_ = double_Array_0[0] [L95] EXPR signed_long_int_Array_0[1][0] [L95] last_1_signed_long_int_Array_0_1__0_ = signed_long_int_Array_0[1][0] [L105] RET updateLastVariables() [L106] CALL updateVariables() [L75] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L79] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] double_Array_0[1] = __VERIFIER_nondet_double() [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] CALL assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] RET assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] signed_long_int_Array_0[0][0] = __VERIFIER_nondet_long() [L84] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] CALL assume_abort_if_not(signed_long_int_Array_0[0][0] >= -1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] RET assume_abort_if_not(signed_long_int_Array_0[0][0] >= -1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] CALL assume_abort_if_not(signed_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] RET assume_abort_if_not(signed_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] signed_long_int_Array_0[0][1] = __VERIFIER_nondet_long() [L87] EXPR signed_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] CALL assume_abort_if_not(signed_long_int_Array_0[0][1] >= 1073741822) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] RET assume_abort_if_not(signed_long_int_Array_0[0][1] >= 1073741822) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] EXPR signed_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] CALL assume_abort_if_not(signed_long_int_Array_0[0][1] <= 2147483646) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] RET assume_abort_if_not(signed_long_int_Array_0[0][1] <= 2147483646) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L90] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L90] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L90] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L106] RET updateVariables() [L107] CALL step() [L39] EXPR signed_long_int_Array_0[0][1] [L39] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] COND FALSE !(! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) [L46] EXPR unsigned_char_Array_0[0] [L46] unsigned_char_Array_0[1] = unsigned_char_Array_0[0] [L48] EXPR unsigned_char_Array_0[1] [L48] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L48] COND FALSE !(unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) [L51] EXPR unsigned_char_Array_0[1] [L51] EXPR signed_long_int_Array_0[0][1] [L51] signed_long_int_Array_0[1][0] = (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]) [L53] EXPR unsigned_char_Array_0[1] [L53] EXPR signed_long_int_Array_0[0][1] [L53] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L53] COND FALSE !((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) [L64] EXPR double_Array_0[1] [L64] double_Array_0[0] = double_Array_0[1] [L66] BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L66] COND TRUE BOOL_unsigned_char_Array_0[1] [L67] EXPR signed_long_int_Array_0[0][1] [L67] EXPR unsigned_char_Array_0[1] [L67] EXPR unsigned_char_Array_0[1] [L67] signed_long_int_Array_0[1][1] = ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]) [L107] RET step() [L108] CALL, EXPR property() [L98] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1) [L98] EXPR signed_long_int_Array_0[1][1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))) [L98] EXPR signed_long_int_Array_0[1][0] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR (unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[0] [L98] EXPR (! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1])) [L98] EXPR double_Array_0[0] [L98] EXPR double_Array_0[1] [L98] EXPR ((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98-L99] return (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.9s, OverallIterations: 16, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 811 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 807 mSDsluCounter, 7921 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5908 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1372 IncrementalHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 2013 mSDtfsCounter, 1372 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 534 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=15, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 527 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 1754 NumberOfCodeBlocks, 1754 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1440 ConstructedInterpolants, 0 QuantifiedInterpolants, 3797 SizeOfPredicates, 6 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 3300/3300 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:55:03,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX --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 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:55:06,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:55:06,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:55:06,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:55:06,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:55:06,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:55:06,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:55:06,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:55:06,276 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:55:06,277 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:55:06,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:55:06,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:55:06,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:55:06,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:55:06,282 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:55:06,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:55:06,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:55:06,283 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:55:06,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:55:06,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:55:06,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:55:06,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:55:06,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:55:06,294 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:55:06,294 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:55:06,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:55:06,295 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:55:06,295 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:55:06,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:55:06,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:55:06,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:55:06,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:55:06,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:55:06,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:55:06,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:55:06,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:55:06,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:55:06,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:55:06,303 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:55:06,304 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:55:06,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:55:06,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:55:06,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:55:06,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:55:06,307 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_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c [2024-11-08 18:55:06,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:55:06,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:55:06,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:55:06,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:55:06,850 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:55:06,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i Unable to find full path for "g++" [2024-11-08 18:55:09,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:55:09,606 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:55:09,607 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-11-08 18:55:09,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/data/862687e4b/4f586893604742ac912120694e8a50f4/FLAGac23baa8f [2024-11-08 18:55:09,636 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/data/862687e4b/4f586893604742ac912120694e8a50f4 [2024-11-08 18:55:09,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:55:09,640 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:55:09,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:55:09,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:55:09,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:55:09,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:55:09" (1/1) ... [2024-11-08 18:55:09,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b742edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:09, skipping insertion in model container [2024-11-08 18:55:09,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:55:09" (1/1) ... [2024-11-08 18:55:09,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:55:09,925 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-11-08 18:55:10,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:55:10,052 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:55:10,072 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-11-08 18:55:10,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:55:10,195 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:55:10,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10 WrapperNode [2024-11-08 18:55:10,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:55:10,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:55:10,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:55:10,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:55:10,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,310 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 412 [2024-11-08 18:55:10,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:55:10,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:55:10,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:55:10,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:55:10,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,381 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,436 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 20, 22, 33, 33]. 30 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 2, 2, 4, 2]. The 16 writes are split as follows [0, 2, 5, 6, 3]. [2024-11-08 18:55:10,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:55:10,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:55:10,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:55:10,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:55:10,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:55:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:10,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:55:10,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:55:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:55:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-08 18:55:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-08 18:55:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-08 18:55:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-08 18:55:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-08 18:55:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-08 18:55:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-08 18:55:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-08 18:55:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-08 18:55:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-08 18:55:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 18:55:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 18:55:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 18:55:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 18:55:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-08 18:55:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:55:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:55:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:55:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 18:55:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 18:55:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 18:55:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 18:55:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 18:55:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 18:55:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 18:55:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-08 18:55:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-08 18:55:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-08 18:55:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-08 18:55:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-08 18:55:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:55:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:55:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:55:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 18:55:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 18:55:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:55:10,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:55:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:55:10,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:55:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 18:55:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 18:55:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 18:55:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 18:55:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-08 18:55:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:55:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:55:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 18:55:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 18:55:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 18:55:10,849 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:55:10,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:55:11,720 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-08 18:55:11,721 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:55:11,741 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:55:11,741 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:55:11,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:11 BoogieIcfgContainer [2024-11-08 18:55:11,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:55:11,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:55:11,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:55:11,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:55:11,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:55:09" (1/3) ... [2024-11-08 18:55:11,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d296f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:55:11, skipping insertion in model container [2024-11-08 18:55:11,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10" (2/3) ... [2024-11-08 18:55:11,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d296f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:55:11, skipping insertion in model container [2024-11-08 18:55:11,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:11" (3/3) ... [2024-11-08 18:55:11,753 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-31.i [2024-11-08 18:55:11,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:55:11,774 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:55:11,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:55:11,862 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;@44391e13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:55:11,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:55:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:55:11,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:55:11,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:11,881 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:11,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:11,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:11,888 INFO L85 PathProgramCache]: Analyzing trace with hash -872409101, now seen corresponding path program 1 times [2024-11-08 18:55:11,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:11,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756098271] [2024-11-08 18:55:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:11,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:11,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:11,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:11,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 18:55:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:12,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:55:12,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-08 18:55:12,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:12,391 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:12,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756098271] [2024-11-08 18:55:12,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756098271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:12,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:12,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:55:12,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658018001] [2024-11-08 18:55:12,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:12,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:55:12,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:55:12,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:55:12,441 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:55:12,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:12,482 INFO L93 Difference]: Finished difference Result 164 states and 256 transitions. [2024-11-08 18:55:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:55:12,486 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-11-08 18:55:12,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:12,497 INFO L225 Difference]: With dead ends: 164 [2024-11-08 18:55:12,498 INFO L226 Difference]: Without dead ends: 80 [2024-11-08 18:55:12,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:55:12,511 INFO L432 NwaCegarLoop]: 114 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, 114 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:12,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:55:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-08 18:55:12,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-08 18:55:12,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:55:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2024-11-08 18:55:12,579 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 94 [2024-11-08 18:55:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:12,580 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2024-11-08 18:55:12,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:55:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2024-11-08 18:55:12,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:55:12,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:12,593 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:12,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 18:55:12,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:12,795 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:12,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:12,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1484358317, now seen corresponding path program 1 times [2024-11-08 18:55:12,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:12,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314385963] [2024-11-08 18:55:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:12,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:12,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:12,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:12,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:13,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:55:13,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:13,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-08 18:55:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:13,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:13,382 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:13,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314385963] [2024-11-08 18:55:13,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314385963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:13,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:13,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:55:13,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220039908] [2024-11-08 18:55:13,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:13,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:55:13,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:13,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:55:13,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:13,390 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:13,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:13,453 INFO L93 Difference]: Finished difference Result 157 states and 225 transitions. [2024-11-08 18:55:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:55:13,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-11-08 18:55:13,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:13,456 INFO L225 Difference]: With dead ends: 157 [2024-11-08 18:55:13,456 INFO L226 Difference]: Without dead ends: 80 [2024-11-08 18:55:13,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:13,463 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:13,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:55:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-08 18:55:13,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-08 18:55:13,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:55:13,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2024-11-08 18:55:13,477 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 94 [2024-11-08 18:55:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:13,479 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2024-11-08 18:55:13,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:13,480 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2024-11-08 18:55:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:55:13,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:13,485 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:13,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:13,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:13,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:13,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:13,687 INFO L85 PathProgramCache]: Analyzing trace with hash -103989585, now seen corresponding path program 1 times [2024-11-08 18:55:13,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:13,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090692885] [2024-11-08 18:55:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:13,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:13,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:13,692 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:13,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:14,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:55:14,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:14,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:55:14,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:55:14,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2024-11-08 18:55:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:55:14,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:15,038 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090692885] [2024-11-08 18:55:15,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090692885] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:15,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:15,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-08 18:55:15,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810663688] [2024-11-08 18:55:15,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:15,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:55:15,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:15,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:55:15,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:55:15,042 INFO L87 Difference]: Start difference. First operand 80 states and 113 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:15,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:15,794 INFO L93 Difference]: Finished difference Result 214 states and 302 transitions. [2024-11-08 18:55:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:55:15,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-11-08 18:55:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:15,798 INFO L225 Difference]: With dead ends: 214 [2024-11-08 18:55:15,798 INFO L226 Difference]: Without dead ends: 137 [2024-11-08 18:55:15,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:55:15,800 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 75 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:15,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:55:15,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-08 18:55:15,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2024-11-08 18:55:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 114 states have internal predecessors, (153), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:55:15,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 189 transitions. [2024-11-08 18:55:15,832 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 189 transitions. Word has length 94 [2024-11-08 18:55:15,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:15,836 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 189 transitions. [2024-11-08 18:55:15,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 189 transitions. [2024-11-08 18:55:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:55:15,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:15,843 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:15,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:16,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:16,044 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:16,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:16,045 INFO L85 PathProgramCache]: Analyzing trace with hash -542550582, now seen corresponding path program 1 times [2024-11-08 18:55:16,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:16,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307366278] [2024-11-08 18:55:16,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:16,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:16,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:16,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:16,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:55:16,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:16,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-08 18:55:16,452 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:16,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:16,456 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:16,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307366278] [2024-11-08 18:55:16,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307366278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:16,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:16,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:55:16,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383227482] [2024-11-08 18:55:16,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:16,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:55:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:55:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:16,459 INFO L87 Difference]: Start difference. First operand 134 states and 189 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:16,501 INFO L93 Difference]: Finished difference Result 265 states and 375 transitions. [2024-11-08 18:55:16,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:55:16,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-08 18:55:16,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:16,509 INFO L225 Difference]: With dead ends: 265 [2024-11-08 18:55:16,510 INFO L226 Difference]: Without dead ends: 134 [2024-11-08 18:55:16,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:16,512 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:16,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:55:16,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-08 18:55:16,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-08 18:55:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 113 states have (on average 1.336283185840708) internal successors, (151), 114 states have internal predecessors, (151), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:55:16,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 187 transitions. [2024-11-08 18:55:16,551 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 187 transitions. Word has length 96 [2024-11-08 18:55:16,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:16,552 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 187 transitions. [2024-11-08 18:55:16,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:16,552 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 187 transitions. [2024-11-08 18:55:16,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:55:16,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:16,558 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:16,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:16,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:16,759 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:16,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:16,760 INFO L85 PathProgramCache]: Analyzing trace with hash -935577592, now seen corresponding path program 1 times [2024-11-08 18:55:16,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:16,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894816016] [2024-11-08 18:55:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:16,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:16,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:16,763 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:16,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:17,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:55:17,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:17,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:55:17,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2024-11-08 18:55:17,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:17,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 58 [2024-11-08 18:55:18,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:18,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 152 treesize of output 98 [2024-11-08 18:55:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:55:18,439 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:18,677 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:18,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894816016] [2024-11-08 18:55:18,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894816016] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:18,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:18,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2024-11-08 18:55:18,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185408326] [2024-11-08 18:55:18,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:18,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:55:18,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:18,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:55:18,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:55:18,681 INFO L87 Difference]: Start difference. First operand 134 states and 187 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:19,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:19,269 INFO L93 Difference]: Finished difference Result 294 states and 411 transitions. [2024-11-08 18:55:19,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:55:19,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-08 18:55:19,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:19,274 INFO L225 Difference]: With dead ends: 294 [2024-11-08 18:55:19,274 INFO L226 Difference]: Without dead ends: 163 [2024-11-08 18:55:19,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:55:19,276 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 82 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:19,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 541 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:55:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-08 18:55:19,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 110. [2024-11-08 18:55:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:55:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 152 transitions. [2024-11-08 18:55:19,306 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 152 transitions. Word has length 96 [2024-11-08 18:55:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:19,307 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 152 transitions. [2024-11-08 18:55:19,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 152 transitions. [2024-11-08 18:55:19,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:55:19,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:19,309 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:19,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:19,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:19,510 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:19,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:19,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1848799575, now seen corresponding path program 1 times [2024-11-08 18:55:19,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:19,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18504637] [2024-11-08 18:55:19,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:19,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:19,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:19,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:19,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:19,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:55:19,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-08 18:55:20,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:20,473 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18504637] [2024-11-08 18:55:20,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18504637] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:20,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:20,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-08 18:55:20,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545248493] [2024-11-08 18:55:20,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:20,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:55:20,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:20,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:55:20,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:55:20,477 INFO L87 Difference]: Start difference. First operand 110 states and 152 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:20,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:20,669 INFO L93 Difference]: Finished difference Result 241 states and 325 transitions. [2024-11-08 18:55:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:55:20,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-08 18:55:20,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:20,672 INFO L225 Difference]: With dead ends: 241 [2024-11-08 18:55:20,672 INFO L226 Difference]: Without dead ends: 154 [2024-11-08 18:55:20,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:55:20,674 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 53 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:20,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 456 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:55:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-08 18:55:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 151. [2024-11-08 18:55:20,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 126 states have (on average 1.2936507936507937) internal successors, (163), 128 states have internal predecessors, (163), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:20,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 203 transitions. [2024-11-08 18:55:20,702 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 203 transitions. Word has length 96 [2024-11-08 18:55:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:20,706 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 203 transitions. [2024-11-08 18:55:20,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 203 transitions. [2024-11-08 18:55:20,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:55:20,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:20,708 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:20,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:20,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:20,909 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:20,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:20,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1158690120, now seen corresponding path program 1 times [2024-11-08 18:55:20,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:20,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368640916] [2024-11-08 18:55:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:20,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:20,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:20,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:20,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:21,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:55:21,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:21,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-08 18:55:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-08 18:55:21,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:21,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:21,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368640916] [2024-11-08 18:55:21,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368640916] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:21,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:21,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 18:55:21,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517448062] [2024-11-08 18:55:21,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:21,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:55:21,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:21,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:55:21,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:55:21,833 INFO L87 Difference]: Start difference. First operand 151 states and 203 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:22,033 INFO L93 Difference]: Finished difference Result 275 states and 364 transitions. [2024-11-08 18:55:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:55:22,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-08 18:55:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:22,036 INFO L225 Difference]: With dead ends: 275 [2024-11-08 18:55:22,036 INFO L226 Difference]: Without dead ends: 151 [2024-11-08 18:55:22,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:55:22,039 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 80 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:22,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 317 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:55:22,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-08 18:55:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 118. [2024-11-08 18:55:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.263157894736842) internal successors, (120), 96 states have internal predecessors, (120), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:55:22,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 156 transitions. [2024-11-08 18:55:22,078 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 156 transitions. Word has length 97 [2024-11-08 18:55:22,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:22,080 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 156 transitions. [2024-11-08 18:55:22,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 156 transitions. [2024-11-08 18:55:22,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 18:55:22,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:22,082 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:22,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:22,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:22,283 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:22,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:22,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1040292947, now seen corresponding path program 1 times [2024-11-08 18:55:22,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:22,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43531406] [2024-11-08 18:55:22,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:22,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:22,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:22,286 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:22,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:22,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:55:22,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:22,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:55:22,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-08 18:55:22,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:22,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 30 [2024-11-08 18:55:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:22,906 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:22,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:22,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43531406] [2024-11-08 18:55:22,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43531406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:22,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:22,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:55:22,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578941091] [2024-11-08 18:55:22,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:22,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:55:22,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:22,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:55:22,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:55:22,909 INFO L87 Difference]: Start difference. First operand 118 states and 156 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:23,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:23,263 INFO L93 Difference]: Finished difference Result 296 states and 390 transitions. [2024-11-08 18:55:23,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:55:23,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 98 [2024-11-08 18:55:23,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:23,267 INFO L225 Difference]: With dead ends: 296 [2024-11-08 18:55:23,267 INFO L226 Difference]: Without dead ends: 205 [2024-11-08 18:55:23,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:55:23,269 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 87 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:23,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 634 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:55:23,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-08 18:55:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2024-11-08 18:55:23,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 167 states have (on average 1.2754491017964071) internal successors, (213), 169 states have internal predecessors, (213), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-08 18:55:23,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 267 transitions. [2024-11-08 18:55:23,322 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 267 transitions. Word has length 98 [2024-11-08 18:55:23,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:23,323 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 267 transitions. [2024-11-08 18:55:23,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:23,323 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 267 transitions. [2024-11-08 18:55:23,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:55:23,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:23,327 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:23,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:23,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:23,531 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:23,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:23,532 INFO L85 PathProgramCache]: Analyzing trace with hash -948848880, now seen corresponding path program 1 times [2024-11-08 18:55:23,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:23,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072485588] [2024-11-08 18:55:23,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:23,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:23,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:23,534 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:23,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:23,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:55:23,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:23,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:23,876 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:23,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072485588] [2024-11-08 18:55:23,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072485588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:23,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:23,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:55:23,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951875320] [2024-11-08 18:55:23,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:23,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:55:23,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:23,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:55:23,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:55:23,882 INFO L87 Difference]: Start difference. First operand 202 states and 267 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:24,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:24,086 INFO L93 Difference]: Finished difference Result 448 states and 592 transitions. [2024-11-08 18:55:24,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:55:24,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:55:24,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:24,090 INFO L225 Difference]: With dead ends: 448 [2024-11-08 18:55:24,090 INFO L226 Difference]: Without dead ends: 273 [2024-11-08 18:55:24,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:55:24,091 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 41 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:24,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 460 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:55:24,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-08 18:55:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 210. [2024-11-08 18:55:24,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 175 states have (on average 1.2742857142857142) internal successors, (223), 177 states have internal predecessors, (223), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-08 18:55:24,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 277 transitions. [2024-11-08 18:55:24,125 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 277 transitions. Word has length 99 [2024-11-08 18:55:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:24,125 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 277 transitions. [2024-11-08 18:55:24,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 277 transitions. [2024-11-08 18:55:24,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:55:24,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:24,128 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:24,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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)] Ended with exit code 0 [2024-11-08 18:55:24,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:24,329 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:24,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:24,330 INFO L85 PathProgramCache]: Analyzing trace with hash -362042866, now seen corresponding path program 1 times [2024-11-08 18:55:24,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:24,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45361080] [2024-11-08 18:55:24,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:24,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:24,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:24,335 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:24,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:24,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:55:24,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:24,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:55:24,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:55:24,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2024-11-08 18:55:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:55:24,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:24,983 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:24,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45361080] [2024-11-08 18:55:24,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45361080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:24,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232917763] [2024-11-08 18:55:24,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:24,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:24,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:24,986 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:24,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:55:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:25,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:55:25,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:25,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-08 18:55:25,340 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:55:25,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:25,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232917763] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:25,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:55:25,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 8] total 13 [2024-11-08 18:55:25,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421287364] [2024-11-08 18:55:25,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:25,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:55:25,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:25,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:55:25,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:55:25,513 INFO L87 Difference]: Start difference. First operand 210 states and 277 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:25,866 INFO L93 Difference]: Finished difference Result 518 states and 678 transitions. [2024-11-08 18:55:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:55:25,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:55:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:25,870 INFO L225 Difference]: With dead ends: 518 [2024-11-08 18:55:25,870 INFO L226 Difference]: Without dead ends: 335 [2024-11-08 18:55:25,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:55:25,872 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 66 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:25,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 730 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:55:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-08 18:55:25,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 220. [2024-11-08 18:55:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 185 states have (on average 1.2702702702702702) internal successors, (235), 187 states have internal predecessors, (235), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-08 18:55:25,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 289 transitions. [2024-11-08 18:55:25,900 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 289 transitions. Word has length 99 [2024-11-08 18:55:25,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:25,900 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 289 transitions. [2024-11-08 18:55:25,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:25,901 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 289 transitions. [2024-11-08 18:55:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:55:25,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:25,902 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:25,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:26,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:26,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:26,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:26,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:26,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1383111220, now seen corresponding path program 1 times [2024-11-08 18:55:26,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:26,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377197729] [2024-11-08 18:55:26,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:26,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:26,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:26,306 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:26,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:26,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:55:26,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:26,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:26,664 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:26,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377197729] [2024-11-08 18:55:26,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377197729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:26,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:26,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:55:26,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111428777] [2024-11-08 18:55:26,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:26,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:55:26,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:26,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:55:26,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:55:26,666 INFO L87 Difference]: Start difference. First operand 220 states and 289 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:27,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:27,077 INFO L93 Difference]: Finished difference Result 532 states and 693 transitions. [2024-11-08 18:55:27,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:55:27,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:55:27,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:27,081 INFO L225 Difference]: With dead ends: 532 [2024-11-08 18:55:27,081 INFO L226 Difference]: Without dead ends: 339 [2024-11-08 18:55:27,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:55:27,083 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 68 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:27,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 442 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:55:27,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-08 18:55:27,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 198. [2024-11-08 18:55:27,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 172 states have internal predecessors, (218), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 258 transitions. [2024-11-08 18:55:27,111 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 258 transitions. Word has length 99 [2024-11-08 18:55:27,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:27,112 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 258 transitions. [2024-11-08 18:55:27,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:27,113 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 258 transitions. [2024-11-08 18:55:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:55:27,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:27,114 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:27,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:27,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:27,315 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:27,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1323508174, now seen corresponding path program 1 times [2024-11-08 18:55:27,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:27,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278194691] [2024-11-08 18:55:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:27,317 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:27,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:55:27,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:27,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:27,719 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:27,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278194691] [2024-11-08 18:55:27,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278194691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:27,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:27,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:55:27,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122469927] [2024-11-08 18:55:27,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:27,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:55:27,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:27,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:55:27,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:55:27,722 INFO L87 Difference]: Start difference. First operand 198 states and 258 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:27,899 INFO L93 Difference]: Finished difference Result 440 states and 567 transitions. [2024-11-08 18:55:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:55:27,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:55:27,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:27,902 INFO L225 Difference]: With dead ends: 440 [2024-11-08 18:55:27,902 INFO L226 Difference]: Without dead ends: 245 [2024-11-08 18:55:27,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:55:27,904 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 40 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:27,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 469 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:55:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-08 18:55:27,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 186. [2024-11-08 18:55:27,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 159 states have (on average 1.2327044025157232) internal successors, (196), 160 states have internal predecessors, (196), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 236 transitions. [2024-11-08 18:55:27,932 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 236 transitions. Word has length 99 [2024-11-08 18:55:27,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:27,933 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 236 transitions. [2024-11-08 18:55:27,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:27,933 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 236 transitions. [2024-11-08 18:55:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:55:27,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:27,935 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:55:27,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:28,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:28,136 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:28,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:28,136 INFO L85 PathProgramCache]: Analyzing trace with hash 358783115, now seen corresponding path program 1 times [2024-11-08 18:55:28,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:55:28,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465706734] [2024-11-08 18:55:28,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:28,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:55:28,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:55:28,138 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:55:28,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:55:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:28,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:55:28,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:28,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:55:29,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:55:29,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-08 18:55:30,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:30,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 26 [2024-11-08 18:55:30,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:30,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 63 [2024-11-08 18:55:30,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:30,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 46 [2024-11-08 18:55:30,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:55:30,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 37 [2024-11-08 18:55:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 9 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 18:55:31,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:55:33,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:55:33,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465706734] [2024-11-08 18:55:33,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465706734] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:33,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:33,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2024-11-08 18:55:33,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640469001] [2024-11-08 18:55:33,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:33,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:55:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:55:33,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:55:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:55:33,423 INFO L87 Difference]: Start difference. First operand 186 states and 236 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:55:39,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:55:43,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:55:47,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:55:51,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:55:55,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:55:59,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:56:04,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:56:08,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:56:09,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:09,325 INFO L93 Difference]: Finished difference Result 437 states and 552 transitions. [2024-11-08 18:56:09,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:56:09,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-08 18:56:09,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:09,330 INFO L225 Difference]: With dead ends: 437 [2024-11-08 18:56:09,330 INFO L226 Difference]: Without dead ends: 254 [2024-11-08 18:56:09,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:56:09,332 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 122 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:09,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 610 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 8 Unknown, 0 Unchecked, 35.2s Time] [2024-11-08 18:56:09,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-08 18:56:09,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 208. [2024-11-08 18:56:09,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 181 states have (on average 1.2209944751381216) internal successors, (221), 182 states have internal predecessors, (221), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:56:09,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 261 transitions. [2024-11-08 18:56:09,359 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 261 transitions. Word has length 99 [2024-11-08 18:56:09,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:09,360 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 261 transitions. [2024-11-08 18:56:09,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:56:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 261 transitions. [2024-11-08 18:56:09,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:56:09,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:09,362 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:56:09,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:56:09,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:56:09,562 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:09,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:09,563 INFO L85 PathProgramCache]: Analyzing trace with hash 472976705, now seen corresponding path program 1 times [2024-11-08 18:56:09,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:09,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224225487] [2024-11-08 18:56:09,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:09,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:56:09,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:56:09,565 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:56:09,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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)] Waiting until timeout for monitored process [2024-11-08 18:56:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:09,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:56:09,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:56:09,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:09,926 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:09,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224225487] [2024-11-08 18:56:09,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224225487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:09,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:09,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:56:09,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141947262] [2024-11-08 18:56:09,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:09,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:09,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:09,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:09,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:09,928 INFO L87 Difference]: Start difference. First operand 208 states and 261 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:56:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:10,049 INFO L93 Difference]: Finished difference Result 416 states and 523 transitions. [2024-11-08 18:56:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2024-11-08 18:56:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:10,052 INFO L225 Difference]: With dead ends: 416 [2024-11-08 18:56:10,052 INFO L226 Difference]: Without dead ends: 211 [2024-11-08 18:56:10,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:56:10,054 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:10,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 522 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:56:10,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-08 18:56:10,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2024-11-08 18:56:10,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 181 states have (on average 1.2154696132596685) internal successors, (220), 182 states have internal predecessors, (220), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:56:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 260 transitions. [2024-11-08 18:56:10,081 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 260 transitions. Word has length 100 [2024-11-08 18:56:10,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:10,081 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 260 transitions. [2024-11-08 18:56:10,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:56:10,082 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 260 transitions. [2024-11-08 18:56:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:56:10,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:10,083 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:56:10,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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)] Ended with exit code 0 [2024-11-08 18:56:10,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:56:10,284 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:10,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:10,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1151123112, now seen corresponding path program 1 times [2024-11-08 18:56:10,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:10,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43383347] [2024-11-08 18:56:10,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:10,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:56:10,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:56:10,287 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:56:10,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:56:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:10,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:56:10,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:10,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:56:11,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:11,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 188 treesize of output 98 [2024-11-08 18:56:12,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:12,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 134 [2024-11-08 18:56:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-08 18:56:12,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:13,526 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:13,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43383347] [2024-11-08 18:56:13,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43383347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:56:13,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352929859] [2024-11-08 18:56:13,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:13,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:13,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:13,528 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:13,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 18:56:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:14,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:56:14,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:15,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:15,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 78 [2024-11-08 18:56:16,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:16,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 328 treesize of output 114 [2024-11-08 18:56:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 91 proven. 30 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-08 18:56:16,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:17,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352929859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:56:17,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:56:17,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 18 [2024-11-08 18:56:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889822486] [2024-11-08 18:56:17,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:56:17,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:56:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:17,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:56:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:56:17,319 INFO L87 Difference]: Start difference. First operand 208 states and 260 transitions. Second operand has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-08 18:56:23,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:23,361 INFO L93 Difference]: Finished difference Result 570 states and 695 transitions. [2024-11-08 18:56:23,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 18:56:23,362 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 100 [2024-11-08 18:56:23,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:23,364 INFO L225 Difference]: With dead ends: 570 [2024-11-08 18:56:23,365 INFO L226 Difference]: Without dead ends: 568 [2024-11-08 18:56:23,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=248, Invalid=1392, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 18:56:23,366 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 397 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:23,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1065 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-08 18:56:23,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-08 18:56:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 532. [2024-11-08 18:56:23,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 467 states have (on average 1.2034261241970021) internal successors, (562), 473 states have internal predecessors, (562), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 18:56:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 658 transitions. [2024-11-08 18:56:23,451 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 658 transitions. Word has length 100 [2024-11-08 18:56:23,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:23,451 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 658 transitions. [2024-11-08 18:56:23,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-08 18:56:23,452 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 658 transitions. [2024-11-08 18:56:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:56:23,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:23,454 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:56:23,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-08 18:56:23,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:56:23,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:56:23,855 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:23,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:23,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2118473766, now seen corresponding path program 1 times [2024-11-08 18:56:23,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:23,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095783225] [2024-11-08 18:56:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:23,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:56:23,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:56:23,858 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:56:23,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (19)] Waiting until timeout for monitored process [2024-11-08 18:56:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:24,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:56:24,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:24,192 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-08 18:56:24,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:24,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:24,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095783225] [2024-11-08 18:56:24,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095783225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:24,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:24,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:56:24,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320215709] [2024-11-08 18:56:24,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:24,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:56:24,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:24,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:56:24,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:56:24,195 INFO L87 Difference]: Start difference. First operand 532 states and 658 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:56:24,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:24,334 INFO L93 Difference]: Finished difference Result 1061 states and 1313 transitions. [2024-11-08 18:56:24,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:56:24,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-11-08 18:56:24,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:24,340 INFO L225 Difference]: With dead ends: 1061 [2024-11-08 18:56:24,341 INFO L226 Difference]: Without dead ends: 532 [2024-11-08 18:56:24,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:56:24,343 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:24,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:56:24,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-08 18:56:24,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-11-08 18:56:24,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 467 states have (on average 1.1991434689507494) internal successors, (560), 473 states have internal predecessors, (560), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 18:56:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 656 transitions. [2024-11-08 18:56:24,446 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 656 transitions. Word has length 100 [2024-11-08 18:56:24,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:24,446 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 656 transitions. [2024-11-08 18:56:24,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:56:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 656 transitions. [2024-11-08 18:56:24,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 18:56:24,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:24,449 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:56:24,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (19)] Ended with exit code 0 [2024-11-08 18:56:24,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:56:24,649 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:24,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:24,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1935050117, now seen corresponding path program 1 times [2024-11-08 18:56:24,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:24,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140771570] [2024-11-08 18:56:24,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:24,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:56:24,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:56:24,655 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:56:24,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (20)] Waiting until timeout for monitored process [2024-11-08 18:56:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:25,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:56:25,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:25,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:56:25,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:56:25,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-08 18:56:26,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:26,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 26 [2024-11-08 18:56:26,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:26,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 62 [2024-11-08 18:56:26,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 41 [2024-11-08 18:56:27,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:56:27,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 36 [2024-11-08 18:56:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:56:27,317 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:56:29,642 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:29,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140771570] [2024-11-08 18:56:29,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140771570] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:56:29,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:56:29,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 19 [2024-11-08 18:56:29,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104718791] [2024-11-08 18:56:29,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:29,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:56:29,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:29,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:56:29,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:56:29,645 INFO L87 Difference]: Start difference. First operand 532 states and 656 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:56:35,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:56:39,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:56:43,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:56:47,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:56:52,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:56:56,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:57:00,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:57:04,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:57:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:05,338 INFO L93 Difference]: Finished difference Result 1196 states and 1470 transitions. [2024-11-08 18:57:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:57:05,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-11-08 18:57:05,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:05,348 INFO L225 Difference]: With dead ends: 1196 [2024-11-08 18:57:05,348 INFO L226 Difference]: Without dead ends: 667 [2024-11-08 18:57:05,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:57:05,351 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 111 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:05,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 611 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 8 Unknown, 0 Unchecked, 35.0s Time] [2024-11-08 18:57:05,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-08 18:57:05,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 512. [2024-11-08 18:57:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 447 states have (on average 1.1946308724832215) internal successors, (534), 453 states have internal predecessors, (534), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 18:57:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 630 transitions. [2024-11-08 18:57:05,437 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 630 transitions. Word has length 101 [2024-11-08 18:57:05,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:05,438 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 630 transitions. [2024-11-08 18:57:05,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 630 transitions. [2024-11-08 18:57:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:57:05,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:05,440 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:05,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (20)] Ended with exit code 0 [2024-11-08 18:57:05,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:05,641 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:05,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:05,641 INFO L85 PathProgramCache]: Analyzing trace with hash -804483266, now seen corresponding path program 1 times [2024-11-08 18:57:05,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:05,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554475240] [2024-11-08 18:57:05,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:05,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:05,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:05,644 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:05,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (21)] Waiting until timeout for monitored process [2024-11-08 18:57:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:06,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:57:06,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:06,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:57:07,214 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:07,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 186 treesize of output 96 [2024-11-08 18:57:08,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:08,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 382 treesize of output 132 [2024-11-08 18:57:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-08 18:57:08,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:08,819 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:08,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554475240] [2024-11-08 18:57:08,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554475240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:08,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379513571] [2024-11-08 18:57:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:08,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:08,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:08,821 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:08,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-08 18:57:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:09,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:57:09,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:12,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:12,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 186 treesize of output 96 [2024-11-08 18:57:13,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:13,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 382 treesize of output 132 [2024-11-08 18:57:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 139 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-08 18:57:13,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:13,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379513571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:13,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:57:13,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18] total 24 [2024-11-08 18:57:13,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779755780] [2024-11-08 18:57:13,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:57:13,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 18:57:13,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 18:57:13,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:57:13,569 INFO L87 Difference]: Start difference. First operand 512 states and 630 transitions. Second operand has 25 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 22 states have internal predecessors, (68), 4 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (13), 2 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 18:57:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:21,574 INFO L93 Difference]: Finished difference Result 1099 states and 1328 transitions. [2024-11-08 18:57:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-08 18:57:21,576 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 22 states have internal predecessors, (68), 4 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (13), 2 states have call predecessors, (13), 4 states have call successors, (13) Word has length 102 [2024-11-08 18:57:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:21,581 INFO L225 Difference]: With dead ends: 1099 [2024-11-08 18:57:21,581 INFO L226 Difference]: Without dead ends: 1097 [2024-11-08 18:57:21,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=465, Invalid=2727, Unknown=0, NotChecked=0, Total=3192 [2024-11-08 18:57:21,584 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 516 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:21,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 2151 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 18:57:21,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2024-11-08 18:57:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 699. [2024-11-08 18:57:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 606 states have (on average 1.193069306930693) internal successors, (723), 615 states have internal predecessors, (723), 68 states have call successors, (68), 24 states have call predecessors, (68), 24 states have return successors, (68), 59 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-08 18:57:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 859 transitions. [2024-11-08 18:57:21,709 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 859 transitions. Word has length 102 [2024-11-08 18:57:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:21,709 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 859 transitions. [2024-11-08 18:57:21,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 22 states have internal predecessors, (68), 4 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (13), 2 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 18:57:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 859 transitions. [2024-11-08 18:57:21,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:57:21,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:21,716 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:21,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (21)] Ended with exit code 0 [2024-11-08 18:57:21,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-08 18:57:22,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:22,116 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:22,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:22,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1103974524, now seen corresponding path program 1 times [2024-11-08 18:57:22,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:22,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095890640] [2024-11-08 18:57:22,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:22,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:22,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:22,119 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:22,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (23)] Waiting until timeout for monitored process [2024-11-08 18:57:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:22,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:57:22,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:22,460 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 18:57:22,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:22,461 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:22,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095890640] [2024-11-08 18:57:22,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095890640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:22,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:22,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:57:22,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351393651] [2024-11-08 18:57:22,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:22,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:57:22,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:57:22,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:57:22,463 INFO L87 Difference]: Start difference. First operand 699 states and 859 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:57:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:22,749 INFO L93 Difference]: Finished difference Result 1256 states and 1532 transitions. [2024-11-08 18:57:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:57:22,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-11-08 18:57:22,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:22,754 INFO L225 Difference]: With dead ends: 1256 [2024-11-08 18:57:22,754 INFO L226 Difference]: Without dead ends: 548 [2024-11-08 18:57:22,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:57:22,757 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 1 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:22,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 451 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:57:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-08 18:57:22,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 520. [2024-11-08 18:57:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 453 states have (on average 1.1876379690949228) internal successors, (538), 459 states have internal predecessors, (538), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 18:57:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 634 transitions. [2024-11-08 18:57:22,840 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 634 transitions. Word has length 102 [2024-11-08 18:57:22,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:22,841 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 634 transitions. [2024-11-08 18:57:22,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:57:22,842 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 634 transitions. [2024-11-08 18:57:22,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:57:22,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:22,844 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:22,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (23)] Ended with exit code 0 [2024-11-08 18:57:23,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:23,044 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:23,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:23,045 INFO L85 PathProgramCache]: Analyzing trace with hash -313786290, now seen corresponding path program 1 times [2024-11-08 18:57:23,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:23,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116042404] [2024-11-08 18:57:23,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:23,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:23,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:23,050 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:23,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (24)] Waiting until timeout for monitored process [2024-11-08 18:57:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:23,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:57:23,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-08 18:57:23,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:57:24,073 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:24,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116042404] [2024-11-08 18:57:24,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116042404] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:24,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:57:24,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-08 18:57:24,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564208468] [2024-11-08 18:57:24,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:24,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:57:24,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:24,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:57:24,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:57:24,075 INFO L87 Difference]: Start difference. First operand 520 states and 634 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:24,333 INFO L93 Difference]: Finished difference Result 1245 states and 1511 transitions. [2024-11-08 18:57:24,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:57:24,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-08 18:57:24,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:24,337 INFO L225 Difference]: With dead ends: 1245 [2024-11-08 18:57:24,338 INFO L226 Difference]: Without dead ends: 728 [2024-11-08 18:57:24,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:57:24,342 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 52 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:24,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 309 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:57:24,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-08 18:57:24,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 604. [2024-11-08 18:57:24,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 537 states have (on average 1.175046554934823) internal successors, (631), 543 states have internal predecessors, (631), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 18:57:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 727 transitions. [2024-11-08 18:57:24,436 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 727 transitions. Word has length 103 [2024-11-08 18:57:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:24,437 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 727 transitions. [2024-11-08 18:57:24,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 727 transitions. [2024-11-08 18:57:24,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:57:24,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:24,439 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:24,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (24)] Ended with exit code 0 [2024-11-08 18:57:24,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:24,643 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:24,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:24,644 INFO L85 PathProgramCache]: Analyzing trace with hash 495560336, now seen corresponding path program 1 times [2024-11-08 18:57:24,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:24,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141411648] [2024-11-08 18:57:24,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:24,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:24,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:24,645 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:24,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (25)] Waiting until timeout for monitored process [2024-11-08 18:57:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:25,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:57:25,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:25,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2024-11-08 18:57:26,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:26,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 54 [2024-11-08 18:57:26,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2024-11-08 18:57:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:57:26,174 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:26,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:26,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141411648] [2024-11-08 18:57:26,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141411648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:26,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:26,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:57:26,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627320573] [2024-11-08 18:57:26,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:26,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:57:26,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:26,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:57:26,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:57:26,178 INFO L87 Difference]: Start difference. First operand 604 states and 727 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:28,590 INFO L93 Difference]: Finished difference Result 1540 states and 1833 transitions. [2024-11-08 18:57:28,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:57:28,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-08 18:57:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:28,595 INFO L225 Difference]: With dead ends: 1540 [2024-11-08 18:57:28,596 INFO L226 Difference]: Without dead ends: 939 [2024-11-08 18:57:28,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:57:28,598 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 107 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:28,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 645 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 18:57:28,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-08 18:57:28,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 855. [2024-11-08 18:57:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 742 states have (on average 1.150943396226415) internal successors, (854), 754 states have internal predecessors, (854), 79 states have call successors, (79), 33 states have call predecessors, (79), 33 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:57:28,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1012 transitions. [2024-11-08 18:57:28,752 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1012 transitions. Word has length 103 [2024-11-08 18:57:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:28,752 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1012 transitions. [2024-11-08 18:57:28,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:28,753 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1012 transitions. [2024-11-08 18:57:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:57:28,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:28,754 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:28,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (25)] Ended with exit code 0 [2024-11-08 18:57:28,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:28,956 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:28,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash 92579635, now seen corresponding path program 1 times [2024-11-08 18:57:28,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:28,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874284991] [2024-11-08 18:57:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:28,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:28,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:28,962 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:28,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (26)] Waiting until timeout for monitored process [2024-11-08 18:57:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:29,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:57:29,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:29,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2024-11-08 18:57:30,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:30,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 53 [2024-11-08 18:57:30,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-08 18:57:30,496 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:57:30,496 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:30,496 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:30,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874284991] [2024-11-08 18:57:30,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874284991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:30,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:30,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:57:30,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545742039] [2024-11-08 18:57:30,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:30,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:57:30,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:30,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:57:30,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:57:30,499 INFO L87 Difference]: Start difference. First operand 855 states and 1012 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:34,330 INFO L93 Difference]: Finished difference Result 1898 states and 2251 transitions. [2024-11-08 18:57:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:57:34,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-08 18:57:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:34,337 INFO L225 Difference]: With dead ends: 1898 [2024-11-08 18:57:34,337 INFO L226 Difference]: Without dead ends: 1059 [2024-11-08 18:57:34,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:57:34,340 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 161 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:34,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 695 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 18:57:34,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-08 18:57:34,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 847. [2024-11-08 18:57:34,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 734 states have (on average 1.1362397820163488) internal successors, (834), 746 states have internal predecessors, (834), 79 states have call successors, (79), 33 states have call predecessors, (79), 33 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:57:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 992 transitions. [2024-11-08 18:57:34,503 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 992 transitions. Word has length 103 [2024-11-08 18:57:34,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:34,504 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 992 transitions. [2024-11-08 18:57:34,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:34,504 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 992 transitions. [2024-11-08 18:57:34,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:57:34,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:34,506 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:34,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (26)] Forceful destruction successful, exit code 0 [2024-11-08 18:57:34,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:34,707 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:34,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:34,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1038539014, now seen corresponding path program 1 times [2024-11-08 18:57:34,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:34,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489002812] [2024-11-08 18:57:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:34,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:34,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:34,709 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:34,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (27)] Waiting until timeout for monitored process [2024-11-08 18:57:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:35,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:57:35,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:35,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:57:35,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:57:35,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2024-11-08 18:57:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:57:35,331 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:35,473 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:35,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489002812] [2024-11-08 18:57:35,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489002812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:35,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252236592] [2024-11-08 18:57:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:35,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:35,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:35,477 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:35,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-08 18:57:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:35,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:57:35,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:35,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:57:35,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2024-11-08 18:57:36,018 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 18:57:36,018 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:36,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252236592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:36,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:57:36,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 9 [2024-11-08 18:57:36,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468615600] [2024-11-08 18:57:36,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:57:36,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:57:36,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:36,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:57:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:57:36,375 INFO L87 Difference]: Start difference. First operand 847 states and 992 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:57:37,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:37,234 INFO L93 Difference]: Finished difference Result 1659 states and 1925 transitions. [2024-11-08 18:57:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:57:37,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2024-11-08 18:57:37,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:37,239 INFO L225 Difference]: With dead ends: 1659 [2024-11-08 18:57:37,239 INFO L226 Difference]: Without dead ends: 828 [2024-11-08 18:57:37,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:57:37,241 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 71 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:37,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 472 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:57:37,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-08 18:57:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 784. [2024-11-08 18:57:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 667 states have (on average 1.1124437781109446) internal successors, (742), 679 states have internal predecessors, (742), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:57:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 900 transitions. [2024-11-08 18:57:37,416 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 900 transitions. Word has length 104 [2024-11-08 18:57:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:37,418 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 900 transitions. [2024-11-08 18:57:37,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:57:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 900 transitions. [2024-11-08 18:57:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 18:57:37,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:37,421 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:37,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-08 18:57:37,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (27)] Ended with exit code 0 [2024-11-08 18:57:37,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:37,822 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:37,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1927063594, now seen corresponding path program 1 times [2024-11-08 18:57:37,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:37,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152925959] [2024-11-08 18:57:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:37,823 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 [2024-11-08 18:57:37,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:37,824 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:37,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (29)] Waiting until timeout for monitored process [2024-11-08 18:57:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:38,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:57:38,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:38,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2024-11-08 18:57:39,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:39,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 102 [2024-11-08 18:57:40,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:40,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 394 treesize of output 138 [2024-11-08 18:57:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-08 18:57:41,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:41,864 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:41,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152925959] [2024-11-08 18:57:41,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152925959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:41,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263746463] [2024-11-08 18:57:41,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:41,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:41,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:41,866 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:41,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-08 18:57:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:42,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:57:42,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:43,659 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:43,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 78 [2024-11-08 18:57:44,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:44,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 328 treesize of output 114 [2024-11-08 18:57:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-08 18:57:44,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:44,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263746463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:44,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:57:44,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 18 [2024-11-08 18:57:44,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505007787] [2024-11-08 18:57:44,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:57:44,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:57:44,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:44,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:57:44,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:57:44,927 INFO L87 Difference]: Start difference. First operand 784 states and 900 transitions. Second operand has 19 states, 19 states have (on average 5.157894736842105) internal successors, (98), 18 states have internal predecessors, (98), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-08 18:57:49,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:57:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:52,389 INFO L93 Difference]: Finished difference Result 1148 states and 1292 transitions. [2024-11-08 18:57:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 18:57:52,391 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.157894736842105) internal successors, (98), 18 states have internal predecessors, (98), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 105 [2024-11-08 18:57:52,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:52,394 INFO L225 Difference]: With dead ends: 1148 [2024-11-08 18:57:52,394 INFO L226 Difference]: Without dead ends: 1146 [2024-11-08 18:57:52,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=250, Invalid=1472, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 18:57:52,395 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 354 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:52,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1163 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-08 18:57:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-11-08 18:57:52,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 882. [2024-11-08 18:57:52,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 765 states have (on average 1.1111111111111112) internal successors, (850), 777 states have internal predecessors, (850), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:57:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1008 transitions. [2024-11-08 18:57:52,571 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1008 transitions. Word has length 105 [2024-11-08 18:57:52,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:52,572 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1008 transitions. [2024-11-08 18:57:52,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.157894736842105) internal successors, (98), 18 states have internal predecessors, (98), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-08 18:57:52,573 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1008 transitions. [2024-11-08 18:57:52,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:57:52,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:52,575 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:52,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-08 18:57:52,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (29)] Ended with exit code 0 [2024-11-08 18:57:52,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:52,980 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:52,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1038766379, now seen corresponding path program 1 times [2024-11-08 18:57:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:52,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491773406] [2024-11-08 18:57:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:52,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:52,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:52,982 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:52,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (31)] Waiting until timeout for monitored process [2024-11-08 18:57:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:53,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:57:53,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:57:53,406 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:53,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:53,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491773406] [2024-11-08 18:57:53,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491773406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:53,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:53,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:57:53,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438852112] [2024-11-08 18:57:53,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:53,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:57:53,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:57:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:57:53,409 INFO L87 Difference]: Start difference. First operand 882 states and 1008 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:53,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:53,689 INFO L93 Difference]: Finished difference Result 2188 states and 2504 transitions. [2024-11-08 18:57:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:57:53,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-08 18:57:53,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:53,696 INFO L225 Difference]: With dead ends: 2188 [2024-11-08 18:57:53,696 INFO L226 Difference]: Without dead ends: 1322 [2024-11-08 18:57:53,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:57:53,698 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 30 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:53,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 482 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:57:53,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-11-08 18:57:53,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1208. [2024-11-08 18:57:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1091 states have (on average 1.1136571952337304) internal successors, (1215), 1103 states have internal predecessors, (1215), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:57:53,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1373 transitions. [2024-11-08 18:57:53,879 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1373 transitions. Word has length 106 [2024-11-08 18:57:53,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:53,880 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 1373 transitions. [2024-11-08 18:57:53,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:53,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1373 transitions. [2024-11-08 18:57:53,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:57:53,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:53,883 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:53,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (31)] Ended with exit code 0 [2024-11-08 18:57:54,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:54,087 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:54,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash -976726765, now seen corresponding path program 1 times [2024-11-08 18:57:54,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:54,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167804771] [2024-11-08 18:57:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:54,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:54,092 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:54,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (32)] Waiting until timeout for monitored process [2024-11-08 18:57:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:54,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:57:54,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:54,422 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:57:54,422 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:54,422 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:54,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167804771] [2024-11-08 18:57:54,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167804771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:54,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:54,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:54,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739580368] [2024-11-08 18:57:54,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:54,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:54,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:54,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:54,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:54,426 INFO L87 Difference]: Start difference. First operand 1208 states and 1373 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:54,591 INFO L93 Difference]: Finished difference Result 2224 states and 2531 transitions. [2024-11-08 18:57:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:54,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-08 18:57:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:54,594 INFO L225 Difference]: With dead ends: 2224 [2024-11-08 18:57:54,595 INFO L226 Difference]: Without dead ends: 1032 [2024-11-08 18:57:54,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:54,597 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 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 [2024-11-08 18:57:54,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:57:54,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2024-11-08 18:57:54,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1032. [2024-11-08 18:57:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 915 states have (on average 1.1092896174863387) internal successors, (1015), 927 states have internal predecessors, (1015), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:57:54,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1173 transitions. [2024-11-08 18:57:54,721 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1173 transitions. Word has length 106 [2024-11-08 18:57:54,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:54,721 INFO L471 AbstractCegarLoop]: Abstraction has 1032 states and 1173 transitions. [2024-11-08 18:57:54,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1173 transitions. [2024-11-08 18:57:54,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 18:57:54,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:54,723 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:54,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (32)] Forceful destruction successful, exit code 0 [2024-11-08 18:57:54,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:54,924 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:54,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:54,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1492384463, now seen corresponding path program 1 times [2024-11-08 18:57:54,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:54,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073041302] [2024-11-08 18:57:54,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:54,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:54,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:54,927 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:54,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (33)] Waiting until timeout for monitored process [2024-11-08 18:57:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:55,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:57:55,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:57:55,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:55,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:55,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073041302] [2024-11-08 18:57:55,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073041302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:55,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:55,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:57:55,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026336765] [2024-11-08 18:57:55,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:55,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:57:55,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:55,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:57:55,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:57:55,370 INFO L87 Difference]: Start difference. First operand 1032 states and 1173 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:55,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:55,617 INFO L93 Difference]: Finished difference Result 2256 states and 2560 transitions. [2024-11-08 18:57:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:57:55,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-08 18:57:55,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:55,621 INFO L225 Difference]: With dead ends: 2256 [2024-11-08 18:57:55,621 INFO L226 Difference]: Without dead ends: 1240 [2024-11-08 18:57:55,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:57:55,623 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 26 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:55,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 456 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:57:55,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-11-08 18:57:55,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1208. [2024-11-08 18:57:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1091 states have (on average 1.1026581118240146) internal successors, (1203), 1103 states have internal predecessors, (1203), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:57:55,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1361 transitions. [2024-11-08 18:57:55,811 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1361 transitions. Word has length 107 [2024-11-08 18:57:55,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:55,812 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 1361 transitions. [2024-11-08 18:57:55,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1361 transitions. [2024-11-08 18:57:55,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 18:57:55,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:55,815 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:55,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (33)] Ended with exit code 0 [2024-11-08 18:57:56,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:56,016 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:56,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:56,016 INFO L85 PathProgramCache]: Analyzing trace with hash 430843571, now seen corresponding path program 1 times [2024-11-08 18:57:56,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:56,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89095082] [2024-11-08 18:57:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:56,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:56,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:56,018 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:56,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (34)] Waiting until timeout for monitored process [2024-11-08 18:57:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:56,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:57:56,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-08 18:57:56,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:57:56,857 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:56,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89095082] [2024-11-08 18:57:56,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89095082] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:56,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:57:56,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-08 18:57:56,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127141808] [2024-11-08 18:57:56,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:56,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:57:56,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:56,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:57:56,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:57:56,858 INFO L87 Difference]: Start difference. First operand 1208 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:57,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:57,140 INFO L93 Difference]: Finished difference Result 2388 states and 2694 transitions. [2024-11-08 18:57:57,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:57:57,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-08 18:57:57,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:57,144 INFO L225 Difference]: With dead ends: 2388 [2024-11-08 18:57:57,144 INFO L226 Difference]: Without dead ends: 1196 [2024-11-08 18:57:57,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:57:57,146 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 98 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:57,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 351 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:57:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2024-11-08 18:57:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1144. [2024-11-08 18:57:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1027 states have (on average 1.1032132424537489) internal successors, (1133), 1039 states have internal predecessors, (1133), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:57:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1291 transitions. [2024-11-08 18:57:57,333 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1291 transitions. Word has length 107 [2024-11-08 18:57:57,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:57,334 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1291 transitions. [2024-11-08 18:57:57,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:57:57,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1291 transitions. [2024-11-08 18:57:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 18:57:57,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:57,337 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:57:57,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (34)] Forceful destruction successful, exit code 0 [2024-11-08 18:57:57,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:57,537 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:57,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:57,538 INFO L85 PathProgramCache]: Analyzing trace with hash -407058000, now seen corresponding path program 1 times [2024-11-08 18:57:57,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:57,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313614215] [2024-11-08 18:57:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:57,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:57:57,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:57:57,540 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:57:57,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (35)] Waiting until timeout for monitored process [2024-11-08 18:57:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:57,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:57:57,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:58,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:57:59,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:57:59,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 186 treesize of output 96 [2024-11-08 18:58:00,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:58:00,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 382 treesize of output 132 [2024-11-08 18:58:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-08 18:58:00,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:00,981 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:00,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313614215] [2024-11-08 18:58:00,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313614215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:00,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618417473] [2024-11-08 18:58:00,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:00,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:00,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:00,983 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:00,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-08 18:58:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:01,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:58:01,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:02,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:58:02,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 77 [2024-11-08 18:58:03,367 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:58:03,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 327 treesize of output 113 [2024-11-08 18:58:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 139 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-08 18:58:03,409 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:03,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618417473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:03,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:58:03,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 24 [2024-11-08 18:58:03,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539171515] [2024-11-08 18:58:03,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:58:03,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 18:58:03,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:03,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 18:58:03,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:58:03,777 INFO L87 Difference]: Start difference. First operand 1144 states and 1291 transitions. Second operand has 24 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 22 states have internal predecessors, (105), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-08 18:58:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:09,958 INFO L93 Difference]: Finished difference Result 1451 states and 1617 transitions. [2024-11-08 18:58:09,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 18:58:09,960 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 22 states have internal predecessors, (105), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 107 [2024-11-08 18:58:09,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:09,964 INFO L225 Difference]: With dead ends: 1451 [2024-11-08 18:58:09,964 INFO L226 Difference]: Without dead ends: 1449 [2024-11-08 18:58:09,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=354, Invalid=2096, Unknown=0, NotChecked=0, Total=2450 [2024-11-08 18:58:09,965 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 289 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:09,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 2161 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1118 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 18:58:09,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-11-08 18:58:10,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 944. [2024-11-08 18:58:10,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 827 states have (on average 1.1015719467956469) internal successors, (911), 839 states have internal predecessors, (911), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-08 18:58:10,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1069 transitions. [2024-11-08 18:58:10,131 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1069 transitions. Word has length 107 [2024-11-08 18:58:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:10,131 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1069 transitions. [2024-11-08 18:58:10,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 22 states have internal predecessors, (105), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-08 18:58:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1069 transitions. [2024-11-08 18:58:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:58:10,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:10,134 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:58:10,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (35)] Ended with exit code 0 [2024-11-08 18:58:10,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-08 18:58:10,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:10,535 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:10,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1757714544, now seen corresponding path program 1 times [2024-11-08 18:58:10,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:58:10,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094465756] [2024-11-08 18:58:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:10,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:10,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:58:10,537 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:58:10,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (37)] Waiting until timeout for monitored process [2024-11-08 18:58:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:10,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:58:10,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:11,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:58:11,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-08 18:58:11,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:58:11,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 53 [2024-11-08 18:58:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:58:11,649 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:11,649 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:11,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094465756] [2024-11-08 18:58:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094465756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:58:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868608425] [2024-11-08 18:58:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:11,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:58:11,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:11,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:58:11,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:11,651 INFO L87 Difference]: Start difference. First operand 944 states and 1069 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:12,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:12,856 INFO L93 Difference]: Finished difference Result 1126 states and 1285 transitions. [2024-11-08 18:58:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:58:12,858 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-08 18:58:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:12,867 INFO L225 Difference]: With dead ends: 1126 [2024-11-08 18:58:12,868 INFO L226 Difference]: Without dead ends: 1124 [2024-11-08 18:58:12,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:58:12,873 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 139 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:12,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1258 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:58:12,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-08 18:58:13,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 924. [2024-11-08 18:58:13,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 819 states have (on average 1.1025641025641026) internal successors, (903), 829 states have internal predecessors, (903), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-08 18:58:13,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1045 transitions. [2024-11-08 18:58:13,085 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1045 transitions. Word has length 108 [2024-11-08 18:58:13,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:13,085 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1045 transitions. [2024-11-08 18:58:13,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:13,086 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1045 transitions. [2024-11-08 18:58:13,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:58:13,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:13,088 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:58:13,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (37)] Ended with exit code 0 [2024-11-08 18:58:13,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:13,290 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:13,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:13,290 INFO L85 PathProgramCache]: Analyzing trace with hash 948367918, now seen corresponding path program 1 times [2024-11-08 18:58:13,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:58:13,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695675446] [2024-11-08 18:58:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:13,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:13,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:58:13,292 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:58:13,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (38)] Waiting until timeout for monitored process [2024-11-08 18:58:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:13,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:58:13,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:13,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-08 18:58:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:58:14,125 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:14,125 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:14,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695675446] [2024-11-08 18:58:14,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695675446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:14,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:14,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:58:14,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488919760] [2024-11-08 18:58:14,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:14,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:58:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:14,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:58:14,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:58:14,127 INFO L87 Difference]: Start difference. First operand 924 states and 1045 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:14,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:14,600 INFO L93 Difference]: Finished difference Result 1862 states and 2104 transitions. [2024-11-08 18:58:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:58:14,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-08 18:58:14,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:14,606 INFO L225 Difference]: With dead ends: 1862 [2024-11-08 18:58:14,606 INFO L226 Difference]: Without dead ends: 954 [2024-11-08 18:58:14,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:58:14,609 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 27 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:14,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 466 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:58:14,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-08 18:58:14,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 922. [2024-11-08 18:58:14,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 817 states have (on average 1.0979192166462668) internal successors, (897), 827 states have internal predecessors, (897), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-08 18:58:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1039 transitions. [2024-11-08 18:58:14,775 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1039 transitions. Word has length 108 [2024-11-08 18:58:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:14,775 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1039 transitions. [2024-11-08 18:58:14,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1039 transitions. [2024-11-08 18:58:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:58:14,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:14,778 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-08 18:58:14,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (38)] Ended with exit code 0 [2024-11-08 18:58:14,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:14,978 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:14,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:14,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1819754158, now seen corresponding path program 1 times [2024-11-08 18:58:14,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:58:14,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973297476] [2024-11-08 18:58:14,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:14,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:14,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:58:14,981 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:58:14,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (39)] Waiting until timeout for monitored process [2024-11-08 18:58:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:15,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:58:15,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:15,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-08 18:58:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:58:15,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:15,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:15,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973297476] [2024-11-08 18:58:15,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973297476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:15,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:15,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:58:15,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738348841] [2024-11-08 18:58:15,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:15,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:58:15,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:15,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:58:15,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:15,387 INFO L87 Difference]: Start difference. First operand 922 states and 1039 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:15,560 INFO L93 Difference]: Finished difference Result 1738 states and 1961 transitions. [2024-11-08 18:58:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:58:15,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-08 18:58:15,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:15,566 INFO L225 Difference]: With dead ends: 1738 [2024-11-08 18:58:15,566 INFO L226 Difference]: Without dead ends: 832 [2024-11-08 18:58:15,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:15,568 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:15,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:58:15,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-11-08 18:58:15,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2024-11-08 18:58:15,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 727 states have (on average 1.09353507565337) internal successors, (795), 737 states have internal predecessors, (795), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-08 18:58:15,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 937 transitions. [2024-11-08 18:58:15,713 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 937 transitions. Word has length 108 [2024-11-08 18:58:15,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:15,714 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 937 transitions. [2024-11-08 18:58:15,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 937 transitions. [2024-11-08 18:58:15,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:58:15,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:15,717 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1] [2024-11-08 18:58:15,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (39)] Ended with exit code 0 [2024-11-08 18:58:15,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:15,918 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:15,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:15,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1191129170, now seen corresponding path program 1 times [2024-11-08 18:58:15,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:58:15,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535401333] [2024-11-08 18:58:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:15,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:15,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:58:15,920 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:58:15,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (40)] Waiting until timeout for monitored process [2024-11-08 18:58:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:16,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:58:16,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:16,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-08 18:58:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-08 18:58:16,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:58:16,907 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:16,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535401333] [2024-11-08 18:58:16,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535401333] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:16,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:58:16,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 18:58:16,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041624182] [2024-11-08 18:58:16,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:16,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:58:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:58:16,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:58:16,910 INFO L87 Difference]: Start difference. First operand 832 states and 937 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:17,259 INFO L93 Difference]: Finished difference Result 1508 states and 1698 transitions. [2024-11-08 18:58:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:58:17,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-08 18:58:17,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:17,263 INFO L225 Difference]: With dead ends: 1508 [2024-11-08 18:58:17,263 INFO L226 Difference]: Without dead ends: 692 [2024-11-08 18:58:17,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:58:17,265 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 40 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:17,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 420 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:58:17,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-08 18:58:17,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 658. [2024-11-08 18:58:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 553 states have (on average 1.077757685352622) internal successors, (596), 563 states have internal predecessors, (596), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-08 18:58:17,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 738 transitions. [2024-11-08 18:58:17,385 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 738 transitions. Word has length 111 [2024-11-08 18:58:17,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:17,386 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 738 transitions. [2024-11-08 18:58:17,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:17,386 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 738 transitions. [2024-11-08 18:58:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:58:17,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:17,388 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1] [2024-11-08 18:58:17,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (40)] Ended with exit code 0 [2024-11-08 18:58:17,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:17,589 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:17,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:17,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1542723480, now seen corresponding path program 1 times [2024-11-08 18:58:17,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:58:17,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343701269] [2024-11-08 18:58:17,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:17,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:17,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:58:17,592 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:58:17,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (41)] Waiting until timeout for monitored process [2024-11-08 18:58:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:17,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:58:17,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:18,417 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-08 18:58:18,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:18,649 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:58:18,649 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:18,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343701269] [2024-11-08 18:58:18,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343701269] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:18,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:58:18,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-08 18:58:18,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790577617] [2024-11-08 18:58:18,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:18,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:58:18,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:18,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:58:18,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:18,651 INFO L87 Difference]: Start difference. First operand 658 states and 738 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:18,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:18,930 INFO L93 Difference]: Finished difference Result 1316 states and 1470 transitions. [2024-11-08 18:58:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:58:18,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-08 18:58:18,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:18,932 INFO L225 Difference]: With dead ends: 1316 [2024-11-08 18:58:18,932 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:58:18,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:58:18,934 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 26 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:18,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 401 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:58:18,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:58:18,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:58:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:58:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:58:18,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2024-11-08 18:58:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:18,937 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:58:18,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 18:58:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:58:18,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:58:18,939 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:58:18,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/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 (41)] Ended with exit code 0 [2024-11-08 18:58:19,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c788f4e0-437c-4d43-86ec-fe09ec547566/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:58:19,143 INFO L407 BasicCegarLoop]: Path program histogram: [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] [2024-11-08 18:58:19,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:59:18,580 WARN L286 SmtUtils]: Spent 49.13s on a formula simplification. DAG size of input: 214 DAG size of output: 447 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:59:28,513 WARN L286 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 195 DAG size of output: 278 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:59:44,892 WARN L286 SmtUtils]: Spent 14.73s on a formula simplification. DAG size of input: 215 DAG size of output: 288 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:59:51,921 WARN L286 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 207 DAG size of output: 250 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:00:06,781 WARN L286 SmtUtils]: Spent 14.55s on a formula simplification. DAG size of input: 215 DAG size of output: 288 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:00:13,933 WARN L286 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 195 DAG size of output: 278 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:00:42,604 WARN L286 SmtUtils]: Spent 26.29s on a formula simplification. DAG size of input: 206 DAG size of output: 459 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:00:49,735 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 207 DAG size of output: 250 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:01:20,470 WARN L286 SmtUtils]: Spent 26.30s on a formula simplification. DAG size of input: 206 DAG size of output: 459 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:02:16,054 WARN L286 SmtUtils]: Spent 49.60s on a formula simplification. DAG size of input: 214 DAG size of output: 447 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:03:25,817 WARN L286 SmtUtils]: Spent 1.12m on a formula simplification. DAG size of input: 334 DAG size of output: 695 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:03:53,472 WARN L286 SmtUtils]: Spent 27.29s on a formula simplification. DAG size of input: 430 DAG size of output: 123 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 19:04:05,996 WARN L286 SmtUtils]: Spent 12.52s on a formula simplification. DAG size of input: 71 DAG size of output: 49 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 19:04:18,551 WARN L286 SmtUtils]: Spent 12.55s on a formula simplification. DAG size of input: 86 DAG size of output: 49 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 19:04:30,939 WARN L286 SmtUtils]: Spent 12.39s on a formula simplification. DAG size of input: 71 DAG size of output: 49 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 19:05:52,175 WARN L286 SmtUtils]: Spent 1.35m on a formula simplification. DAG size of input: 1679 DAG size of output: 70 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 19:06:04,706 WARN L286 SmtUtils]: Spent 12.53s on a formula simplification. DAG size of input: 86 DAG size of output: 49 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 19:06:38,234 WARN L286 SmtUtils]: Spent 33.52s on a formula simplification. DAG size of input: 430 DAG size of output: 123 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 19:06:53,243 WARN L286 SmtUtils]: Spent 15.01s on a formula simplification. DAG size of input: 266 DAG size of output: 107 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 19:07:19,071 WARN L286 SmtUtils]: Spent 25.83s on a formula simplification. DAG size of input: 143 DAG size of output: 49 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)