./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:03:20,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:03:21,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:03:21,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:03:21,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:03:21,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:03:21,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:03:21,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:03:21,087 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:03:21,089 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:03:21,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:03:21,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:03:21,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:03:21,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:03:21,091 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:03:21,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:03:21,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:03:21,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:03:21,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:03:21,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:03:21,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:03:21,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:03:21,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:03:21,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:03:21,097 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:03:21,098 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:03:21,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:03:21,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:03:21,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:03:21,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:03:21,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:03:21,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:03:21,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:03:21,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:03:21,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:03:21,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:03:21,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:03:21,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:03:21,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:03:21,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:03:21,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:03:21,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:03:21,104 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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d [2024-11-08 18:03:21,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:03:21,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:03:21,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:03:21,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:03:21,438 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:03:21,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i Unable to find full path for "g++" [2024-11-08 18:03:23,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:03:23,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:03:23,747 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2024-11-08 18:03:23,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/data/fa75f8526/3f4cd4540975400d9a0a59e6f6cd79b9/FLAG70a4a0014 [2024-11-08 18:03:23,776 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/data/fa75f8526/3f4cd4540975400d9a0a59e6f6cd79b9 [2024-11-08 18:03:23,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:03:23,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:03:23,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:03:23,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:03:23,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:03:23,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:03:23" (1/1) ... [2024-11-08 18:03:23,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51638f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:23, skipping insertion in model container [2024-11-08 18:03:23,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:03:23" (1/1) ... [2024-11-08 18:03:23,826 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:03:24,022 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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2024-11-08 18:03:24,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:03:24,098 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:03:24,113 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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2024-11-08 18:03:24,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:03:24,167 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:03:24,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24 WrapperNode [2024-11-08 18:03:24,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:03:24,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:03:24,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:03:24,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:03:24,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,235 INFO L138 Inliner]: procedures = 29, calls = 144, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 475 [2024-11-08 18:03:24,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:03:24,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:03:24,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:03:24,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:03:24,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,295 INFO L175 MemorySlicer]: Split 115 memory accesses to 10 slices as follows [2, 5, 16, 35, 12, 10, 14, 6, 8, 7]. 30 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 12 writes are split as follows [0, 2, 1, 2, 1, 1, 2, 1, 1, 1]. [2024-11-08 18:03:24,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:03:24,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:03:24,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:03:24,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:03:24,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (1/1) ... [2024-11-08 18:03:24,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:03:24,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:03:24,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:03:24,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:03:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:03:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 18:03:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 18:03:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 18:03:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 18:03:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 18:03:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-08 18:03:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-08 18:03:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-08 18:03:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-08 18:03:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-08 18:03:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:03:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:03:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:03:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:03:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:03:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 18:03:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 18:03:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 18:03:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-08 18:03:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-08 18:03:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 18:03:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 18:03:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 18:03:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 18:03:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 18:03:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-08 18:03:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-08 18:03:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-08 18:03:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-08 18:03:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-08 18:03:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:03:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:03:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:03:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:03:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:03:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 18:03:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 18:03:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 18:03:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-08 18:03:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-08 18:03:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 18:03:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 18:03:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 18:03:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 18:03:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-08 18:03:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-08 18:03:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-08 18:03:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-08 18:03:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-08 18:03:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-08 18:03:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:03:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:03:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:03:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:03:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:03:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:03:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:03:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 18:03:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 18:03:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 18:03:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 18:03:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 18:03:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:03:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:03:24,729 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:03:24,731 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:03:25,265 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2024-11-08 18:03:25,265 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:03:25,300 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:03:25,301 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:03:25,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:03:25 BoogieIcfgContainer [2024-11-08 18:03:25,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:03:25,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:03:25,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:03:25,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:03:25,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:03:23" (1/3) ... [2024-11-08 18:03:25,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5943ddb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:03:25, skipping insertion in model container [2024-11-08 18:03:25,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:24" (2/3) ... [2024-11-08 18:03:25,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5943ddb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:03:25, skipping insertion in model container [2024-11-08 18:03:25,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:03:25" (3/3) ... [2024-11-08 18:03:25,317 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-47.i [2024-11-08 18:03:25,340 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:03:25,341 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:03:25,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:03:25,431 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;@44a0f4a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:03:25,431 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:03:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:25,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:25,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:25,447 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:25,448 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:25,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:25,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1763815534, now seen corresponding path program 1 times [2024-11-08 18:03:25,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:25,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604938194] [2024-11-08 18:03:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:25,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:03:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:03:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:03:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:03:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:03:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:03:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:03:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:03:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:03:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:25,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:25,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604938194] [2024-11-08 18:03:25,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604938194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:25,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:25,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:03:25,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996019062] [2024-11-08 18:03:25,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:25,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:03:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:03:26,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:03:26,026 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 18:03:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:26,071 INFO L93 Difference]: Finished difference Result 185 states and 285 transitions. [2024-11-08 18:03:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:03:26,073 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-11-08 18:03:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:26,081 INFO L225 Difference]: With dead ends: 185 [2024-11-08 18:03:26,082 INFO L226 Difference]: Without dead ends: 92 [2024-11-08 18:03:26,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 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 18:03:26,089 INFO L432 NwaCegarLoop]: 134 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, 134 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 18:03:26,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:03:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-08 18:03:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-08 18:03:26,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:26,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2024-11-08 18:03:26,160 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 84 [2024-11-08 18:03:26,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:26,161 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2024-11-08 18:03:26,164 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 18:03:26,164 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2024-11-08 18:03:26,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:26,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:26,171 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:26,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:03:26,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:26,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:26,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1101897372, now seen corresponding path program 1 times [2024-11-08 18:03:26,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:26,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766485914] [2024-11-08 18:03:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:26,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:03:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:03:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:03:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:03:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:03:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:03:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:03:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:03:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:03:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:26,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:26,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766485914] [2024-11-08 18:03:26,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766485914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:26,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:26,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:03:26,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624923224] [2024-11-08 18:03:26,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:26,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:03:26,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:26,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:03:26,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:03:26,530 INFO L87 Difference]: Start difference. First operand 92 states and 134 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:26,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:26,574 INFO L93 Difference]: Finished difference Result 182 states and 267 transitions. [2024-11-08 18:03:26,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:03:26,576 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:26,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:26,578 INFO L225 Difference]: With dead ends: 182 [2024-11-08 18:03:26,580 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 18:03:26,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 18:03:26,582 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:26,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:03:26,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 18:03:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-08 18:03:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:26,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-08 18:03:26,600 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 84 [2024-11-08 18:03:26,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:26,605 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-08 18:03:26,606 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:26,606 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-08 18:03:26,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:26,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:26,607 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:26,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:03:26,610 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:26,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:26,611 INFO L85 PathProgramCache]: Analyzing trace with hash -587046370, now seen corresponding path program 1 times [2024-11-08 18:03:26,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:26,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414839759] [2024-11-08 18:03:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:26,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:03:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:03:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:03:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:03:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:03:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:03:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:03:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:03:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:03:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:27,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:27,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414839759] [2024-11-08 18:03:27,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414839759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:27,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:27,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:03:27,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482064313] [2024-11-08 18:03:27,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:27,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:03:27,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:03:27,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:27,054 INFO L87 Difference]: Start difference. First operand 93 states and 135 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:27,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:27,111 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-11-08 18:03:27,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:03:27,112 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:27,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:27,113 INFO L225 Difference]: With dead ends: 186 [2024-11-08 18:03:27,114 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 18:03:27,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 18:03:27,115 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:27,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:03:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 18:03:27,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-08 18:03:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.411764705882353) internal successors, (120), 85 states have internal predecessors, (120), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:27,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-08 18:03:27,125 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 84 [2024-11-08 18:03:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:27,126 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-08 18:03:27,126 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:27,126 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-08 18:03:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:27,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:27,128 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:27,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:03:27,129 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:27,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:27,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1182524238, now seen corresponding path program 1 times [2024-11-08 18:03:27,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:27,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005530127] [2024-11-08 18:03:27,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:27,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:03:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:03:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:03:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:03:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:03:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:03:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:03:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:03:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:03:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:27,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:27,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005530127] [2024-11-08 18:03:27,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005530127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:27,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:27,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:03:27,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669785215] [2024-11-08 18:03:27,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:27,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:03:27,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:27,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:03:27,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:27,440 INFO L87 Difference]: Start difference. First operand 96 states and 138 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:27,497 INFO L93 Difference]: Finished difference Result 192 states and 277 transitions. [2024-11-08 18:03:27,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:03:27,498 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:27,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:27,499 INFO L225 Difference]: With dead ends: 192 [2024-11-08 18:03:27,499 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 18:03:27,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 18:03:27,501 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 514 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 18:03:27,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 514 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:03:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 18:03:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-11-08 18:03:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.4069767441860466) internal successors, (121), 86 states have internal predecessors, (121), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2024-11-08 18:03:27,517 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 84 [2024-11-08 18:03:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:27,518 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2024-11-08 18:03:27,518 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2024-11-08 18:03:27,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:27,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:27,520 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:27,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:03:27,523 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:27,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:27,524 INFO L85 PathProgramCache]: Analyzing trace with hash 924358800, now seen corresponding path program 1 times [2024-11-08 18:03:27,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:27,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942000985] [2024-11-08 18:03:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:27,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:03:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:03:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:03:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:03:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:03:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:03:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:03:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:03:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:03:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:27,702 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:27,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:27,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942000985] [2024-11-08 18:03:27,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942000985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:27,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:27,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:03:27,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151294733] [2024-11-08 18:03:27,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:27,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:03:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:27,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:03:27,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:03:27,708 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:27,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:27,746 INFO L93 Difference]: Finished difference Result 194 states and 279 transitions. [2024-11-08 18:03:27,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:03:27,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:27,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:27,750 INFO L225 Difference]: With dead ends: 194 [2024-11-08 18:03:27,750 INFO L226 Difference]: Without dead ends: 100 [2024-11-08 18:03:27,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 18:03:27,752 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:27,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 384 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:03:27,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-08 18:03:27,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2024-11-08 18:03:27,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 88 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-11-08 18:03:27,765 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 84 [2024-11-08 18:03:27,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:27,765 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-11-08 18:03:27,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-11-08 18:03:27,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:27,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:27,771 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:27,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:03:27,772 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:27,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash 926205842, now seen corresponding path program 1 times [2024-11-08 18:03:27,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:27,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021903272] [2024-11-08 18:03:27,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:27,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:03:27,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:03:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:03:28,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:03:28,031 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:03:28,035 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:03:28,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:03:28,069 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 18:03:28,214 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:03:28,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:03:28 BoogieIcfgContainer [2024-11-08 18:03:28,219 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:03:28,219 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:03:28,219 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:03:28,220 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:03:28,220 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:03:25" (3/4) ... [2024-11-08 18:03:28,230 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:03:28,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:03:28,232 INFO L158 Benchmark]: Toolchain (without parser) took 4451.61ms. Allocated memory was 172.0MB in the beginning and 255.9MB in the end (delta: 83.9MB). Free memory was 126.6MB in the beginning and 204.5MB in the end (delta: -77.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-11-08 18:03:28,233 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 172.0MB. Free memory was 136.4MB in the beginning and 136.3MB in the end (delta: 23.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:03:28,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.72ms. Allocated memory is still 172.0MB. Free memory was 126.2MB in the beginning and 111.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:03:28,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.49ms. Allocated memory is still 172.0MB. Free memory was 110.9MB in the beginning and 107.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:03:28,234 INFO L158 Benchmark]: Boogie Preprocessor took 103.52ms. Allocated memory is still 172.0MB. Free memory was 107.7MB in the beginning and 103.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:03:28,234 INFO L158 Benchmark]: RCFGBuilder took 960.36ms. Allocated memory was 172.0MB in the beginning and 255.9MB in the end (delta: 83.9MB). Free memory was 103.5MB in the beginning and 196.6MB in the end (delta: -93.1MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-08 18:03:28,234 INFO L158 Benchmark]: TraceAbstraction took 2912.09ms. Allocated memory is still 255.9MB. Free memory was 195.5MB in the beginning and 205.6MB in the end (delta: -10.0MB). Peak memory consumption was 116.9MB. Max. memory is 16.1GB. [2024-11-08 18:03:28,235 INFO L158 Benchmark]: Witness Printer took 12.00ms. Allocated memory is still 255.9MB. Free memory was 205.6MB in the beginning and 204.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:03:28,241 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 172.0MB. Free memory was 136.4MB in the beginning and 136.3MB in the end (delta: 23.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.72ms. Allocated memory is still 172.0MB. Free memory was 126.2MB in the beginning and 111.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.49ms. Allocated memory is still 172.0MB. Free memory was 110.9MB in the beginning and 107.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.52ms. Allocated memory is still 172.0MB. Free memory was 107.7MB in the beginning and 103.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 960.36ms. Allocated memory was 172.0MB in the beginning and 255.9MB in the end (delta: 83.9MB). Free memory was 103.5MB in the beginning and 196.6MB in the end (delta: -93.1MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2912.09ms. Allocated memory is still 255.9MB. Free memory was 195.5MB in the beginning and 205.6MB in the end (delta: -10.0MB). Peak memory consumption was 116.9MB. Max. memory is 16.1GB. * Witness Printer took 12.00ms. Allocated memory is still 255.9MB. Free memory was 205.6MB in the beginning and 204.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.575; [L22] double var_1_1 = 24.575; [L23] double* var_1_1_Pointer = &(var_1_1); [L24] double var_1_8 = 3.5; [L24] double var_1_8 = 3.5; [L25] double* var_1_8_Pointer = &(var_1_8); [L26] signed char var_1_9 = 16; [L26] signed char var_1_9 = 16; [L27] signed char* var_1_9_Pointer = &(var_1_9); [L28] signed char var_1_10 = 16; [L28] signed char var_1_10 = 16; [L29] signed char* var_1_10_Pointer = &(var_1_10); [L30] signed char var_1_11 = 4; [L30] signed char var_1_11 = 4; [L31] signed char* var_1_11_Pointer = &(var_1_11); [L32] signed long int var_1_12 = 8; [L32] signed long int var_1_12 = 8; [L33] signed long int* var_1_12_Pointer = &(var_1_12); [L34] unsigned char var_1_13 = 1; [L34] unsigned char var_1_13 = 1; [L35] unsigned char* var_1_13_Pointer = &(var_1_13); [L36] unsigned char var_1_14 = 1; [L36] unsigned char var_1_14 = 1; [L37] unsigned char* var_1_14_Pointer = &(var_1_14); [L38] double var_1_15 = 3.8; [L38] double var_1_15 = 3.8; [L39] double* var_1_15_Pointer = &(var_1_15); [L40] signed long int last_1_var_1_12 = 8; VAL [isInitial=0, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] CALL updateLastVariables() [L87] EXPR \read(var_1_12) [L87] last_1_var_1_12 = var_1_12 [L97] RET updateLastVariables() [L98] CALL updateVariables() [L71] var_1_8 = __VERIFIER_nondet_double() [L72] EXPR \read(var_1_8) [L72] EXPR var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L72] EXPR var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F [L72] EXPR \read(var_1_8) [L72] EXPR var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L72] EXPR (var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L72] EXPR (var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L72] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L72] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] EXPR \read(var_1_10) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L74] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L74] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L75] EXPR \read(var_1_10) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L75] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L75] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L76] var_1_11 = __VERIFIER_nondet_char() [L77] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L77] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L77] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L78] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L78] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L78] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L79] var_1_13 = __VERIFIER_nondet_uchar() [L80] EXPR \read(var_1_13) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L81] EXPR \read(var_1_13) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L81] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L81] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L82] var_1_14 = __VERIFIER_nondet_uchar() [L83] EXPR \read(var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L84] EXPR \read(var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L84] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L84] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L98] RET updateVariables() [L99] CALL step() [L44] COND FALSE !(-4 > last_1_var_1_12) [L49] EXPR \read(*var_1_10_Pointer) [L49] (*(var_1_9_Pointer)) = (*(var_1_10_Pointer)) [L51] EXPR \read(*var_1_13_Pointer) [L51] unsigned char stepLocal_0 = ! (*(var_1_13_Pointer)); [L52] stepLocal_0 || (*(var_1_14_Pointer)) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L52] stepLocal_0 || (*(var_1_14_Pointer)) [L52] EXPR \read(*var_1_14_Pointer) [L52] stepLocal_0 || (*(var_1_14_Pointer)) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L52] COND FALSE !(stepLocal_0 || (*(var_1_14_Pointer))) [L59] EXPR \read(*var_1_8_Pointer) [L59] (*(var_1_15_Pointer)) = (*(var_1_8_Pointer)) [L60] EXPR \read(*var_1_15_Pointer) [L60] EXPR \read(*var_1_15_Pointer) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L60] COND FALSE !((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) [L65] EXPR \read(*var_1_12_Pointer) [L65] EXPR \read(*var_1_9_Pointer) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L65] COND TRUE (*(var_1_12_Pointer)) > (*(var_1_9_Pointer)) [L66] EXPR \read(*var_1_8_Pointer) [L66] (*(var_1_1_Pointer)) = (*(var_1_8_Pointer)) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR \read(*var_1_15_Pointer) [L90] EXPR \read(*var_1_15_Pointer) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR ((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1) [L90] EXPR \read(*var_1_12_Pointer) [L90] EXPR \read(*var_1_9_Pointer) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR ((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1 [L90] EXPR \read(*var_1_1_Pointer) [L90] EXPR \read(*var_1_8_Pointer) [L90] EXPR ((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1 VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR ((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR (((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer))))) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR (((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer))))) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR ((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR ((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR (((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1)) && ((*(var_1_15_Pointer)) == ((double) (*(var_1_8_Pointer)))) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90] EXPR (((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1)) && ((*(var_1_15_Pointer)) == ((double) (*(var_1_8_Pointer)))) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L90-L91] return (((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1)) && ((*(var_1_15_Pointer)) == ((double) (*(var_1_8_Pointer)))) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 1801 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1139 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 662 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 504 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 720/720 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 18:03:28,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:03:30,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:03:30,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:03:30,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:03:30,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:03:30,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:03:30,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:03:30,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:03:30,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:03:30,885 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:03:30,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:03:30,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:03:30,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:03:30,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:03:30,892 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:03:30,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:03:30,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:03:30,894 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:03:30,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:03:30,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:03:30,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:03:30,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:03:30,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:03:30,897 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:03:30,898 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:03:30,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:03:30,899 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:03:30,899 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:03:30,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:03:30,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:03:30,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:03:30,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:03:30,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:03:30,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:03:30,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:03:30,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:03:30,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:03:30,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:03:30,904 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:03:30,905 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:03:30,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:03:30,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:03:30,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:03:30,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:03:30,908 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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d [2024-11-08 18:03:31,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:03:31,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:03:31,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:03:31,350 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:03:31,351 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:03:31,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i Unable to find full path for "g++" [2024-11-08 18:03:33,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:03:33,948 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:03:33,952 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2024-11-08 18:03:33,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/data/f2a99f7fe/a7fadf16631a44eab16a26583e071bf5/FLAGd356ad4de [2024-11-08 18:03:33,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/data/f2a99f7fe/a7fadf16631a44eab16a26583e071bf5 [2024-11-08 18:03:33,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:03:33,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:03:33,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:03:33,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:03:34,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:03:34,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:03:33" (1/1) ... [2024-11-08 18:03:34,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6930129b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34, skipping insertion in model container [2024-11-08 18:03:34,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:03:33" (1/1) ... [2024-11-08 18:03:34,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:03:34,280 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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2024-11-08 18:03:34,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:03:34,400 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:03:34,416 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_a5f83b44-0fc1-4c8f-868a-da9335e529aa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2024-11-08 18:03:34,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:03:34,495 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:03:34,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34 WrapperNode [2024-11-08 18:03:34,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:03:34,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:03:34,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:03:34,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:03:34,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,585 INFO L138 Inliner]: procedures = 33, calls = 144, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 473 [2024-11-08 18:03:34,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:03:34,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:03:34,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:03:34,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:03:34,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,615 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,661 INFO L175 MemorySlicer]: Split 115 memory accesses to 10 slices as follows [2, 5, 16, 35, 12, 10, 14, 6, 8, 7]. 30 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 12 writes are split as follows [0, 2, 1, 2, 1, 1, 2, 1, 1, 1]. [2024-11-08 18:03:34,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,684 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:03:34,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:03:34,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:03:34,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:03:34,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (1/1) ... [2024-11-08 18:03:34,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:03:34,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:03:34,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:03:34,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:03:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:03:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-08 18:03:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-08 18:03:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-08 18:03:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-08 18:03:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-08 18:03:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-08 18:03:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-11-08 18:03:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2024-11-08 18:03:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2024-11-08 18:03:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2024-11-08 18:03:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-08 18:03:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-08 18:03:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-08 18:03:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-08 18:03:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-08 18:03:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-08 18:03:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-11-08 18:03:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2024-11-08 18:03:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2024-11-08 18:03:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2024-11-08 18:03:34,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 18:03:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 18:03:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 18:03:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 18:03:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-08 18:03:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-08 18:03:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-08 18:03:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-08 18:03:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2024-11-08 18:03:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2024-11-08 18:03:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:03:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:03:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:03:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 18:03:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 18:03:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 18:03:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-08 18:03:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-08 18:03:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-08 18:03:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-08 18:03:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 18:03:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 18:03:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 18:03:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 18:03:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 18:03:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-08 18:03:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-08 18:03:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-08 18:03:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-08 18:03:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-08 18:03:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-08 18:03:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-08 18:03:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-08 18:03:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-08 18:03:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-08 18:03:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-08 18:03:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-11-08 18:03:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2024-11-08 18:03:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2024-11-08 18:03:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2024-11-08 18:03:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:03:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:03:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:03:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 18:03:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 18:03:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-08 18:03:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-08 18:03:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-08 18:03:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-08 18:03:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-08 18:03:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:03:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:03:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:03:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:03:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 18:03:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 18:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 18:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 18:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-08 18:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-08 18:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-08 18:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-08 18:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-11-08 18:03:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2024-11-08 18:03:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:03:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:03:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 18:03:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 18:03:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 18:03:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-08 18:03:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-08 18:03:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-08 18:03:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-08 18:03:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-08 18:03:35,182 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:03:35,184 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:03:35,961 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-08 18:03:35,962 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:03:35,981 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:03:35,982 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:03:35,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:03:35 BoogieIcfgContainer [2024-11-08 18:03:35,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:03:35,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:03:35,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:03:35,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:03:35,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:03:33" (1/3) ... [2024-11-08 18:03:35,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701e8902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:03:35, skipping insertion in model container [2024-11-08 18:03:35,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:34" (2/3) ... [2024-11-08 18:03:35,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701e8902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:03:35, skipping insertion in model container [2024-11-08 18:03:35,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:03:35" (3/3) ... [2024-11-08 18:03:35,995 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-47.i [2024-11-08 18:03:36,015 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:03:36,016 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:03:36,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:03:36,105 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;@2532935c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:03:36,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:03:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:36,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:36,122 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:36,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:36,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:36,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1763815534, now seen corresponding path program 1 times [2024-11-08 18:03:36,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:36,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540949383] [2024-11-08 18:03:36,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:36,149 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 18:03:36,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:36,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:36,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:36,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:03:36,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:36,618 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-08 18:03:36,619 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:03:36,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:36,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540949383] [2024-11-08 18:03:36,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540949383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:36,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:36,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:03:36,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783590318] [2024-11-08 18:03:36,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:36,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:03:36,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:36,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:03:36,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:03:36,655 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 18:03:36,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:36,712 INFO L93 Difference]: Finished difference Result 185 states and 285 transitions. [2024-11-08 18:03:36,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:03:36,715 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-11-08 18:03:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:36,724 INFO L225 Difference]: With dead ends: 185 [2024-11-08 18:03:36,724 INFO L226 Difference]: Without dead ends: 92 [2024-11-08 18:03:36,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 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 18:03:36,732 INFO L432 NwaCegarLoop]: 134 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, 134 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 18:03:36,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:03:36,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-08 18:03:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-08 18:03:36,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2024-11-08 18:03:36,791 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 84 [2024-11-08 18:03:36,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:36,792 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2024-11-08 18:03:36,793 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 18:03:36,793 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2024-11-08 18:03:36,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:36,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:36,796 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:36,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:36,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:36,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:36,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:36,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1101897372, now seen corresponding path program 1 times [2024-11-08 18:03:36,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:37,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632011118] [2024-11-08 18:03:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:37,000 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 18:03:37,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:37,002 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:37,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:37,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:03:37,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:37,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:03:37,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:37,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632011118] [2024-11-08 18:03:37,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632011118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:37,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:37,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:03:37,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286782406] [2024-11-08 18:03:37,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:37,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:03:37,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:37,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:03:37,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:03:37,392 INFO L87 Difference]: Start difference. First operand 92 states and 134 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:37,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:37,568 INFO L93 Difference]: Finished difference Result 182 states and 267 transitions. [2024-11-08 18:03:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:03:37,570 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:37,572 INFO L225 Difference]: With dead ends: 182 [2024-11-08 18:03:37,572 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 18:03:37,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 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 18:03:37,574 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:37,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:03:37,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 18:03:37,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-08 18:03:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-08 18:03:37,586 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 84 [2024-11-08 18:03:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:37,588 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-08 18:03:37,588 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:37,588 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-08 18:03:37,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:37,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:37,591 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:37,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:37,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:37,792 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:37,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:37,793 INFO L85 PathProgramCache]: Analyzing trace with hash -587046370, now seen corresponding path program 1 times [2024-11-08 18:03:37,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:37,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611845189] [2024-11-08 18:03:37,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:37,795 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 18:03:37,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:37,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:37,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:38,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:03:38,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:38,254 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:38,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:03:38,257 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:38,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611845189] [2024-11-08 18:03:38,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611845189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:38,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:38,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:03:38,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948821690] [2024-11-08 18:03:38,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:38,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:03:38,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:38,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:03:38,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:38,263 INFO L87 Difference]: Start difference. First operand 93 states and 135 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:38,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:38,636 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-11-08 18:03:38,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:03:38,637 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:38,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:38,639 INFO L225 Difference]: With dead ends: 186 [2024-11-08 18:03:38,639 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 18:03:38,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 18:03:38,641 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:38,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:03:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 18:03:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-08 18:03:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.411764705882353) internal successors, (120), 85 states have internal predecessors, (120), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-08 18:03:38,652 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 84 [2024-11-08 18:03:38,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:38,653 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-08 18:03:38,654 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-08 18:03:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:38,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:38,656 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:38,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:03:38,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:38,857 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:38,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:38,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1182524238, now seen corresponding path program 1 times [2024-11-08 18:03:38,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:38,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339432356] [2024-11-08 18:03:38,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:38,860 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 18:03:38,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:38,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:38,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:39,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:03:39,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:39,242 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:03:39,242 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:39,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339432356] [2024-11-08 18:03:39,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339432356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:39,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:39,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:03:39,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340492296] [2024-11-08 18:03:39,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:39,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:03:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:39,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:03:39,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:39,245 INFO L87 Difference]: Start difference. First operand 96 states and 138 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:39,466 INFO L93 Difference]: Finished difference Result 192 states and 277 transitions. [2024-11-08 18:03:39,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:03:39,467 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:39,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:39,468 INFO L225 Difference]: With dead ends: 192 [2024-11-08 18:03:39,469 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 18:03:39,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 18:03:39,470 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:39,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 514 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:03:39,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 18:03:39,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-11-08 18:03:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.4069767441860466) internal successors, (121), 86 states have internal predecessors, (121), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:39,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2024-11-08 18:03:39,502 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 84 [2024-11-08 18:03:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:39,503 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2024-11-08 18:03:39,503 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:39,503 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2024-11-08 18:03:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:39,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:39,505 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:39,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:03:39,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:39,713 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:39,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash 924358800, now seen corresponding path program 1 times [2024-11-08 18:03:39,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:39,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854578824] [2024-11-08 18:03:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:39,715 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 18:03:39,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:39,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:39,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:40,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:03:40,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:40,113 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:03:40,113 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:40,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854578824] [2024-11-08 18:03:40,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854578824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:40,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:40,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:03:40,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735993155] [2024-11-08 18:03:40,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:40,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:03:40,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:40,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:03:40,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:40,116 INFO L87 Difference]: Start difference. First operand 97 states and 139 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:44,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:03:44,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:44,404 INFO L93 Difference]: Finished difference Result 196 states and 282 transitions. [2024-11-08 18:03:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:03:44,405 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:44,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:44,406 INFO L225 Difference]: With dead ends: 196 [2024-11-08 18:03:44,406 INFO L226 Difference]: Without dead ends: 102 [2024-11-08 18:03:44,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 18:03:44,408 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 1 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:44,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 503 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 18:03:44,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-08 18:03:44,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-11-08 18:03:44,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 90 states have internal predecessors, (125), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:03:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2024-11-08 18:03:44,416 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 84 [2024-11-08 18:03:44,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:44,417 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2024-11-08 18:03:44,417 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:44,417 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2024-11-08 18:03:44,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:44,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:44,419 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:44,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:44,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:44,620 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:44,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:44,620 INFO L85 PathProgramCache]: Analyzing trace with hash 926205842, now seen corresponding path program 1 times [2024-11-08 18:03:44,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:44,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041373695] [2024-11-08 18:03:44,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:44,621 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 18:03:44,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:44,622 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:44,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:44,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:03:44,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:46,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:03:46,113 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 152 treesize of output 62 [2024-11-08 18:03:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:46,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:03:46,681 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:46,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041373695] [2024-11-08 18:03:46,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041373695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:46,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:46,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:03:46,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236725185] [2024-11-08 18:03:46,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:46,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:03:46,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:46,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:03:46,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:03:46,684 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:48,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:48,203 INFO L93 Difference]: Finished difference Result 293 states and 416 transitions. [2024-11-08 18:03:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:03:48,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:48,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:48,205 INFO L225 Difference]: With dead ends: 293 [2024-11-08 18:03:48,205 INFO L226 Difference]: Without dead ends: 195 [2024-11-08 18:03:48,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:03:48,207 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 317 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:48,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 615 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:03:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-08 18:03:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 144. [2024-11-08 18:03:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 123 states have (on average 1.3739837398373984) internal successors, (169), 123 states have internal predecessors, (169), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 18:03:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 205 transitions. [2024-11-08 18:03:48,227 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 205 transitions. Word has length 84 [2024-11-08 18:03:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:48,227 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 205 transitions. [2024-11-08 18:03:48,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 205 transitions. [2024-11-08 18:03:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:48,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:48,230 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:48,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:48,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:48,431 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:48,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:48,431 INFO L85 PathProgramCache]: Analyzing trace with hash -461092357, now seen corresponding path program 1 times [2024-11-08 18:03:48,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:48,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050138767] [2024-11-08 18:03:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:48,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:03:48,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:48,433 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:48,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:48,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:03:48,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:49,510 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 27 treesize of output 19 [2024-11-08 18:03:49,517 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 13 treesize of output 9 [2024-11-08 18:03:49,881 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 30 treesize of output 18 [2024-11-08 18:03:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 74 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 18:03:49,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:03:50,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:03:50,882 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 50 treesize of output 49 [2024-11-08 18:03:51,253 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:51,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050138767] [2024-11-08 18:03:51,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050138767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:03:51,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992972177] [2024-11-08 18:03:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:51,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:03:51,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:03:51,256 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:03:51,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:03:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:51,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:03:51,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:52,129 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 27 treesize of output 19 [2024-11-08 18:03:52,139 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 13 treesize of output 9 [2024-11-08 18:03:52,370 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 30 treesize of output 18 [2024-11-08 18:03:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 74 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 18:03:52,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:03:52,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:03:52,876 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 50 treesize of output 49 [2024-11-08 18:03:53,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992972177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:03:53,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:03:53,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2024-11-08 18:03:53,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526409677] [2024-11-08 18:03:53,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:03:53,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:03:53,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:53,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:03:53,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:03:53,156 INFO L87 Difference]: Start difference. First operand 144 states and 205 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:03:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:57,007 INFO L93 Difference]: Finished difference Result 741 states and 1039 transitions. [2024-11-08 18:03:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-08 18:03:57,008 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2024-11-08 18:03:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:57,012 INFO L225 Difference]: With dead ends: 741 [2024-11-08 18:03:57,012 INFO L226 Difference]: Without dead ends: 600 [2024-11-08 18:03:57,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 277 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=643, Invalid=1807, Unknown=0, NotChecked=0, Total=2450 [2024-11-08 18:03:57,016 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 817 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:57,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 1040 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 18:03:57,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-08 18:03:57,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 520. [2024-11-08 18:03:57,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 433 states have (on average 1.3394919168591224) internal successors, (580), 433 states have internal predecessors, (580), 72 states have call successors, (72), 14 states have call predecessors, (72), 14 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:03:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 724 transitions. [2024-11-08 18:03:57,101 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 724 transitions. Word has length 84 [2024-11-08 18:03:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:57,101 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 724 transitions. [2024-11-08 18:03:57,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:03:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 724 transitions. [2024-11-08 18:03:57,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:03:57,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:57,104 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:57,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:03:57,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 18:03:57,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:03:57,505 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:57,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:57,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1166445588, now seen corresponding path program 1 times [2024-11-08 18:03:57,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:57,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113455052] [2024-11-08 18:03:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:57,510 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 18:03:57,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:57,515 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:57,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:57,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:03:57,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:57,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:03:57,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:57,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113455052] [2024-11-08 18:03:57,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113455052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:57,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:57,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:03:57,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941855686] [2024-11-08 18:03:57,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:57,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:03:57,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:57,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:03:57,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:03:57,810 INFO L87 Difference]: Start difference. First operand 520 states and 724 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:57,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:57,913 INFO L93 Difference]: Finished difference Result 1037 states and 1445 transitions. [2024-11-08 18:03:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:03:57,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-08 18:03:57,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:57,917 INFO L225 Difference]: With dead ends: 1037 [2024-11-08 18:03:57,917 INFO L226 Difference]: Without dead ends: 520 [2024-11-08 18:03:57,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 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 18:03:57,919 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:57,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:03:57,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-08 18:03:57,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-08 18:03:57,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 433 states have (on average 1.3302540415704387) internal successors, (576), 433 states have internal predecessors, (576), 72 states have call successors, (72), 14 states have call predecessors, (72), 14 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 18:03:57,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 720 transitions. [2024-11-08 18:03:57,987 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 720 transitions. Word has length 84 [2024-11-08 18:03:57,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:57,988 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 720 transitions. [2024-11-08 18:03:57,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 720 transitions. [2024-11-08 18:03:57,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:03:57,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:57,990 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:57,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:58,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:58,191 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:58,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2072377315, now seen corresponding path program 1 times [2024-11-08 18:03:58,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:58,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152604013] [2024-11-08 18:03:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:58,192 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 18:03:58,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:58,193 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:58,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:58,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:03:58,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:58,467 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 17 treesize of output 13 [2024-11-08 18:03:58,490 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 35 treesize of output 19 [2024-11-08 18:03:58,497 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 18:03:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:03:58,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:03:58,527 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:03:58,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152604013] [2024-11-08 18:03:58,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152604013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:58,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:58,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:03:58,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299889551] [2024-11-08 18:03:58,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:58,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:03:58,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:03:58,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:03:58,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:03:58,529 INFO L87 Difference]: Start difference. First operand 520 states and 720 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:58,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:03:58,908 INFO L93 Difference]: Finished difference Result 802 states and 1122 transitions. [2024-11-08 18:03:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:03:58,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 85 [2024-11-08 18:03:58,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:03:58,912 INFO L225 Difference]: With dead ends: 802 [2024-11-08 18:03:58,913 INFO L226 Difference]: Without dead ends: 661 [2024-11-08 18:03:58,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:58,914 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 125 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:03:58,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 562 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:03:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-11-08 18:03:58,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 637. [2024-11-08 18:03:58,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 530 states have (on average 1.330188679245283) internal successors, (705), 530 states have internal predecessors, (705), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-08 18:03:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 885 transitions. [2024-11-08 18:03:58,975 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 885 transitions. Word has length 85 [2024-11-08 18:03:58,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:03:58,976 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 885 transitions. [2024-11-08 18:03:58,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:03:58,977 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 885 transitions. [2024-11-08 18:03:58,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:03:58,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:03:58,978 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:58,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:59,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:59,179 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:03:59,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:59,179 INFO L85 PathProgramCache]: Analyzing trace with hash 934272726, now seen corresponding path program 1 times [2024-11-08 18:03:59,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:03:59,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704908898] [2024-11-08 18:03:59,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:59,180 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 18:03:59,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:03:59,181 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:03:59,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Waiting until timeout for monitored process [2024-11-08 18:03:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:59,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:03:59,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:59,498 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 18:03:59,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:03:59,688 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 97 treesize of output 37 [2024-11-08 18:04:00,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:00,041 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 154 treesize of output 54 [2024-11-08 18:04:00,183 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:00,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:00,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:00,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704908898] [2024-11-08 18:04:00,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704908898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:00,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:00,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:04:00,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071856023] [2024-11-08 18:04:00,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:00,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:04:00,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:00,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:04:00,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:04:00,186 INFO L87 Difference]: Start difference. First operand 637 states and 885 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:02,587 INFO L93 Difference]: Finished difference Result 1982 states and 2751 transitions. [2024-11-08 18:04:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:04:02,589 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-08 18:04:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:02,595 INFO L225 Difference]: With dead ends: 1982 [2024-11-08 18:04:02,595 INFO L226 Difference]: Without dead ends: 1348 [2024-11-08 18:04:02,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:04:02,597 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 179 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:02,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1156 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 18:04:02,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2024-11-08 18:04:02,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 649. [2024-11-08 18:04:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 542 states have (on average 1.3228782287822878) internal successors, (717), 542 states have internal predecessors, (717), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-08 18:04:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 897 transitions. [2024-11-08 18:04:02,694 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 897 transitions. Word has length 86 [2024-11-08 18:04:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:02,695 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 897 transitions. [2024-11-08 18:04:02,695 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:02,695 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 897 transitions. [2024-11-08 18:04:02,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:04:02,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:02,697 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:02,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Ended with exit code 0 [2024-11-08 18:04:02,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:02,897 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:02,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash -86795628, now seen corresponding path program 1 times [2024-11-08 18:04:02,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:02,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870051093] [2024-11-08 18:04:02,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:02,899 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 18:04:02,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:02,900 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:02,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:03,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:04:03,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:05,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:05,132 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 146 treesize of output 56 [2024-11-08 18:04:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:05,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:05,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:05,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870051093] [2024-11-08 18:04:05,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870051093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:05,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:05,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:04:05,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869101176] [2024-11-08 18:04:05,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:05,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:04:05,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:05,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:04:05,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:04:05,242 INFO L87 Difference]: Start difference. First operand 649 states and 897 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:06,814 INFO L93 Difference]: Finished difference Result 1537 states and 2124 transitions. [2024-11-08 18:04:06,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:04:06,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-08 18:04:06,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:06,819 INFO L225 Difference]: With dead ends: 1537 [2024-11-08 18:04:06,820 INFO L226 Difference]: Without dead ends: 891 [2024-11-08 18:04:06,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:04:06,822 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 313 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:06,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 601 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:04:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-08 18:04:06,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 657. [2024-11-08 18:04:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 550 states have (on average 1.3236363636363637) internal successors, (728), 550 states have internal predecessors, (728), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-08 18:04:06,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 908 transitions. [2024-11-08 18:04:06,925 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 908 transitions. Word has length 86 [2024-11-08 18:04:06,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:06,926 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 908 transitions. [2024-11-08 18:04:06,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 908 transitions. [2024-11-08 18:04:06,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:04:06,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:06,927 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:06,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Ended with exit code 0 [2024-11-08 18:04:07,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:07,128 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:07,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:07,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1241333612, now seen corresponding path program 1 times [2024-11-08 18:04:07,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:07,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590561999] [2024-11-08 18:04:07,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:07,129 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 18:04:07,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:07,130 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:07,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:07,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:04:07,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:08,125 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 17 treesize of output 13 [2024-11-08 18:04:08,443 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 66 treesize of output 50 [2024-11-08 18:04:08,448 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 68 treesize of output 44 [2024-11-08 18:04:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 74 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 18:04:08,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:08,986 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:08,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590561999] [2024-11-08 18:04:08,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590561999] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:08,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:04:08,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 18 [2024-11-08 18:04:08,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055990729] [2024-11-08 18:04:08,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:08,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:04:08,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:08,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:04:08,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:04:08,988 INFO L87 Difference]: Start difference. First operand 657 states and 908 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:10,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:10,030 INFO L93 Difference]: Finished difference Result 1733 states and 2375 transitions. [2024-11-08 18:04:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:04:10,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-08 18:04:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:10,037 INFO L225 Difference]: With dead ends: 1733 [2024-11-08 18:04:10,037 INFO L226 Difference]: Without dead ends: 1079 [2024-11-08 18:04:10,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:04:10,039 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 357 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:10,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 635 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:04:10,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-08 18:04:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1017. [2024-11-08 18:04:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 894 states have (on average 1.3366890380313199) internal successors, (1195), 902 states have internal predecessors, (1195), 98 states have call successors, (98), 24 states have call predecessors, (98), 24 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-08 18:04:10,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1391 transitions. [2024-11-08 18:04:10,154 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1391 transitions. Word has length 86 [2024-11-08 18:04:10,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:10,155 INFO L471 AbstractCegarLoop]: Abstraction has 1017 states and 1391 transitions. [2024-11-08 18:04:10,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:10,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1391 transitions. [2024-11-08 18:04:10,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:04:10,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:10,157 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:10,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:10,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:10,357 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:10,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:10,358 INFO L85 PathProgramCache]: Analyzing trace with hash -479386578, now seen corresponding path program 1 times [2024-11-08 18:04:10,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:10,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378437197] [2024-11-08 18:04:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:10,358 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 18:04:10,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:10,361 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:10,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:10,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:04:10,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:11,636 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 36 treesize of output 24 [2024-11-08 18:04:11,644 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 13 treesize of output 9 [2024-11-08 18:04:12,005 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 30 treesize of output 18 [2024-11-08 18:04:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 9 proven. 74 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-08 18:04:12,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:12,341 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:12,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378437197] [2024-11-08 18:04:12,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378437197] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:12,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:04:12,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2024-11-08 18:04:12,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912767602] [2024-11-08 18:04:12,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:12,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:04:12,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:12,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:04:12,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:04:12,343 INFO L87 Difference]: Start difference. First operand 1017 states and 1391 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:13,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:13,033 INFO L93 Difference]: Finished difference Result 2354 states and 3227 transitions. [2024-11-08 18:04:13,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:04:13,035 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-08 18:04:13,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:13,042 INFO L225 Difference]: With dead ends: 2354 [2024-11-08 18:04:13,042 INFO L226 Difference]: Without dead ends: 1340 [2024-11-08 18:04:13,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:04:13,045 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 123 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:13,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 450 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:04:13,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-08 18:04:13,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1312. [2024-11-08 18:04:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1143 states have (on average 1.330708661417323) internal successors, (1521), 1153 states have internal predecessors, (1521), 136 states have call successors, (136), 32 states have call predecessors, (136), 32 states have return successors, (136), 126 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-08 18:04:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1793 transitions. [2024-11-08 18:04:13,219 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1793 transitions. Word has length 86 [2024-11-08 18:04:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:13,220 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1793 transitions. [2024-11-08 18:04:13,220 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1793 transitions. [2024-11-08 18:04:13,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:04:13,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:13,222 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:13,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Ended with exit code 0 [2024-11-08 18:04:13,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:13,423 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:13,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:13,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1268470392, now seen corresponding path program 1 times [2024-11-08 18:04:13,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:13,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005237969] [2024-11-08 18:04:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:13,424 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 18:04:13,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:13,425 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:13,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:13,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:04:13,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:14,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:14,812 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 150 treesize of output 60 [2024-11-08 18:04:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:04:14,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:15,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:15,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005237969] [2024-11-08 18:04:15,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005237969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:15,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369039254] [2024-11-08 18:04:15,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:15,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:15,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:15,135 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:15,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 18:04:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:15,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:04:15,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:15,626 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 16 treesize of output 17 [2024-11-08 18:04:21,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:21,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 49 [2024-11-08 18:04:22,063 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:04:22,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:22,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369039254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:22,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:04:22,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 22 [2024-11-08 18:04:22,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391614569] [2024-11-08 18:04:22,206 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:04:22,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:04:22,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:22,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:04:22,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=523, Unknown=1, NotChecked=0, Total=600 [2024-11-08 18:04:22,207 INFO L87 Difference]: Start difference. First operand 1312 states and 1793 transitions. Second operand has 23 states, 21 states have (on average 3.761904761904762) internal successors, (79), 20 states have internal predecessors, (79), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:04:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:34,527 INFO L93 Difference]: Finished difference Result 4244 states and 5733 transitions. [2024-11-08 18:04:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 18:04:34,528 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.761904761904762) internal successors, (79), 20 states have internal predecessors, (79), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 86 [2024-11-08 18:04:34,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:34,538 INFO L225 Difference]: With dead ends: 4244 [2024-11-08 18:04:34,538 INFO L226 Difference]: Without dead ends: 2935 [2024-11-08 18:04:34,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=430, Invalid=2221, Unknown=1, NotChecked=0, Total=2652 [2024-11-08 18:04:34,542 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1239 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:34,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 2876 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-08 18:04:34,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2024-11-08 18:04:34,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1607. [2024-11-08 18:04:34,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1357 states have (on average 1.3109801031687547) internal successors, (1779), 1367 states have internal predecessors, (1779), 199 states have call successors, (199), 50 states have call predecessors, (199), 50 states have return successors, (199), 189 states have call predecessors, (199), 199 states have call successors, (199) [2024-11-08 18:04:34,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2177 transitions. [2024-11-08 18:04:34,881 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2177 transitions. Word has length 86 [2024-11-08 18:04:34,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:34,883 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2177 transitions. [2024-11-08 18:04:34,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.761904761904762) internal successors, (79), 20 states have internal predecessors, (79), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:04:34,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2177 transitions. [2024-11-08 18:04:34,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:04:34,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:34,887 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:34,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-08 18:04:35,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:04:35,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:35,288 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:35,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:35,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2107504054, now seen corresponding path program 1 times [2024-11-08 18:04:35,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:35,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325327844] [2024-11-08 18:04:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:35,289 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 18:04:35,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:35,290 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:35,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (18)] Waiting until timeout for monitored process [2024-11-08 18:04:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:35,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:04:35,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:04:35,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:35,584 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:35,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325327844] [2024-11-08 18:04:35,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325327844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:35,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:35,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:04:35,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943125975] [2024-11-08 18:04:35,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:35,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:04:35,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:35,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:04:35,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:04:35,586 INFO L87 Difference]: Start difference. First operand 1607 states and 2177 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 18:04:35,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:35,931 INFO L93 Difference]: Finished difference Result 3001 states and 4023 transitions. [2024-11-08 18:04:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:04:35,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2024-11-08 18:04:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:35,938 INFO L225 Difference]: With dead ends: 3001 [2024-11-08 18:04:35,939 INFO L226 Difference]: Without dead ends: 1325 [2024-11-08 18:04:35,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 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 18:04:35,944 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:35,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 573 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:04:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-08 18:04:36,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1282. [2024-11-08 18:04:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1116 states have (on average 1.3082437275985663) internal successors, (1460), 1121 states have internal predecessors, (1460), 131 states have call successors, (131), 34 states have call predecessors, (131), 34 states have return successors, (131), 126 states have call predecessors, (131), 131 states have call successors, (131) [2024-11-08 18:04:36,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1722 transitions. [2024-11-08 18:04:36,150 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1722 transitions. Word has length 86 [2024-11-08 18:04:36,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:36,150 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1722 transitions. [2024-11-08 18:04:36,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 18:04:36,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1722 transitions. [2024-11-08 18:04:36,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 18:04:36,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:36,153 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:36,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (18)] Ended with exit code 0 [2024-11-08 18:04:36,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:36,354 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:36,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:36,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1606636702, now seen corresponding path program 1 times [2024-11-08 18:04:36,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:36,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224679250] [2024-11-08 18:04:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:36,357 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 18:04:36,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:36,360 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:36,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:36,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:04:36,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:36,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:36,790 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:36,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224679250] [2024-11-08 18:04:36,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224679250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:36,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:36,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:04:36,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297516863] [2024-11-08 18:04:36,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:36,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:04:36,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:36,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:04:36,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:04:36,793 INFO L87 Difference]: Start difference. First operand 1282 states and 1722 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:37,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:37,047 INFO L93 Difference]: Finished difference Result 2321 states and 3109 transitions. [2024-11-08 18:04:37,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:04:37,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 87 [2024-11-08 18:04:37,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:37,053 INFO L225 Difference]: With dead ends: 2321 [2024-11-08 18:04:37,053 INFO L226 Difference]: Without dead ends: 1042 [2024-11-08 18:04:37,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:04:37,055 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 228 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:37,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 357 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:04:37,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-08 18:04:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 861. [2024-11-08 18:04:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 767 states have (on average 1.3063885267275097) internal successors, (1002), 770 states have internal predecessors, (1002), 75 states have call successors, (75), 18 states have call predecessors, (75), 18 states have return successors, (75), 72 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-08 18:04:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1152 transitions. [2024-11-08 18:04:37,183 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1152 transitions. Word has length 87 [2024-11-08 18:04:37,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:37,184 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1152 transitions. [2024-11-08 18:04:37,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:37,184 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1152 transitions. [2024-11-08 18:04:37,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 18:04:37,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:37,185 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:37,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:37,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:37,386 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:37,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:37,386 INFO L85 PathProgramCache]: Analyzing trace with hash 436661833, now seen corresponding path program 1 times [2024-11-08 18:04:37,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:37,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389789805] [2024-11-08 18:04:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:37,387 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 18:04:37,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:37,388 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:37,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:37,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:04:37,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:39,982 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 18 treesize of output 19 [2024-11-08 18:04:40,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:40,228 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 64 treesize of output 24 [2024-11-08 18:04:40,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:40,376 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 199 treesize of output 79 [2024-11-08 18:04:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:40,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:40,856 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:40,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389789805] [2024-11-08 18:04:40,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389789805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:40,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:40,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:04:40,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240580347] [2024-11-08 18:04:40,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:40,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:04:40,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:40,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:04:40,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:04:40,858 INFO L87 Difference]: Start difference. First operand 861 states and 1152 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:46,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:46,973 INFO L93 Difference]: Finished difference Result 2216 states and 2948 transitions. [2024-11-08 18:04:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 18:04:46,974 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 88 [2024-11-08 18:04:46,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:46,980 INFO L225 Difference]: With dead ends: 2216 [2024-11-08 18:04:46,980 INFO L226 Difference]: Without dead ends: 1358 [2024-11-08 18:04:46,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=147, Invalid=909, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 18:04:46,983 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 396 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:46,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1593 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:04:46,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2024-11-08 18:04:47,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 909. [2024-11-08 18:04:47,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 815 states have (on average 1.3079754601226994) internal successors, (1066), 818 states have internal predecessors, (1066), 75 states have call successors, (75), 18 states have call predecessors, (75), 18 states have return successors, (75), 72 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-08 18:04:47,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1216 transitions. [2024-11-08 18:04:47,117 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1216 transitions. Word has length 88 [2024-11-08 18:04:47,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:47,118 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1216 transitions. [2024-11-08 18:04:47,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:47,118 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1216 transitions. [2024-11-08 18:04:47,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 18:04:47,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:47,120 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:47,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:04:47,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:47,321 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:47,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:47,321 INFO L85 PathProgramCache]: Analyzing trace with hash -150144181, now seen corresponding path program 1 times [2024-11-08 18:04:47,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:47,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748515357] [2024-11-08 18:04:47,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:47,322 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 18:04:47,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:47,324 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:47,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:47,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:04:47,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:48,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:48,767 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 96 treesize of output 36 [2024-11-08 18:04:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:48,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:48,839 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:48,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748515357] [2024-11-08 18:04:48,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748515357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:48,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:48,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:04:48,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980474428] [2024-11-08 18:04:48,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:48,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:04:48,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:48,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:04:48,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:04:48,841 INFO L87 Difference]: Start difference. First operand 909 states and 1216 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:50,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:50,021 INFO L93 Difference]: Finished difference Result 2103 states and 2814 transitions. [2024-11-08 18:04:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:04:50,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 88 [2024-11-08 18:04:50,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:50,028 INFO L225 Difference]: With dead ends: 2103 [2024-11-08 18:04:50,028 INFO L226 Difference]: Without dead ends: 1197 [2024-11-08 18:04:50,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:04:50,031 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 301 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:50,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 587 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:04:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2024-11-08 18:04:50,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 909. [2024-11-08 18:04:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 815 states have (on average 1.298159509202454) internal successors, (1058), 818 states have internal predecessors, (1058), 75 states have call successors, (75), 18 states have call predecessors, (75), 18 states have return successors, (75), 72 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-08 18:04:50,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1208 transitions. [2024-11-08 18:04:50,170 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1208 transitions. Word has length 88 [2024-11-08 18:04:50,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:50,170 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1208 transitions. [2024-11-08 18:04:50,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:50,171 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1208 transitions. [2024-11-08 18:04:50,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 18:04:50,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:50,173 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:50,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:04:50,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:50,373 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:50,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:50,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1883044870, now seen corresponding path program 1 times [2024-11-08 18:04:50,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:50,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297722516] [2024-11-08 18:04:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:50,374 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 18:04:50,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:50,375 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:50,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Waiting until timeout for monitored process [2024-11-08 18:04:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:50,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:04:50,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:51,776 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 21 treesize of output 10 [2024-11-08 18:04:51,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:51,785 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 150 treesize of output 60 [2024-11-08 18:04:52,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:52,195 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 146 treesize of output 50 [2024-11-08 18:04:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:04:52,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:53,111 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:53,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297722516] [2024-11-08 18:04:53,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297722516] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:53,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:04:53,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-08 18:04:53,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520357936] [2024-11-08 18:04:53,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:53,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:04:53,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:53,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:04:53,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:04:53,113 INFO L87 Difference]: Start difference. First operand 909 states and 1208 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:53,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:53,442 INFO L93 Difference]: Finished difference Result 1771 states and 2355 transitions. [2024-11-08 18:04:53,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:04:53,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 88 [2024-11-08 18:04:53,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:53,447 INFO L225 Difference]: With dead ends: 1771 [2024-11-08 18:04:53,448 INFO L226 Difference]: Without dead ends: 865 [2024-11-08 18:04:53,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:04:53,450 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 222 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:53,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 240 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:04:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-08 18:04:53,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 838. [2024-11-08 18:04:53,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 744 states have (on average 1.2916666666666667) internal successors, (961), 747 states have internal predecessors, (961), 75 states have call successors, (75), 18 states have call predecessors, (75), 18 states have return successors, (75), 72 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-08 18:04:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1111 transitions. [2024-11-08 18:04:53,569 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1111 transitions. Word has length 88 [2024-11-08 18:04:53,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:53,571 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1111 transitions. [2024-11-08 18:04:53,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:53,571 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1111 transitions. [2024-11-08 18:04:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:04:53,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:53,573 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:53,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:04:53,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:53,774 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:53,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:53,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1861883430, now seen corresponding path program 1 times [2024-11-08 18:04:53,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:53,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022879322] [2024-11-08 18:04:53,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:53,776 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 18:04:53,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:53,779 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:53,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:54,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:04:54,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 18:04:54,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:54,950 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:54,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022879322] [2024-11-08 18:04:54,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022879322] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:54,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:04:54,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2024-11-08 18:04:54,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332316010] [2024-11-08 18:04:54,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:54,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:04:54,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:54,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:04:54,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:04:54,953 INFO L87 Difference]: Start difference. First operand 838 states and 1111 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:55,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:55,630 INFO L93 Difference]: Finished difference Result 2211 states and 2916 transitions. [2024-11-08 18:04:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:04:55,630 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2024-11-08 18:04:55,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:55,635 INFO L225 Difference]: With dead ends: 2211 [2024-11-08 18:04:55,636 INFO L226 Difference]: Without dead ends: 1376 [2024-11-08 18:04:55,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:04:55,638 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 88 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:55,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 490 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:04:55,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2024-11-08 18:04:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1368. [2024-11-08 18:04:55,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1228 states have (on average 1.286644951140065) internal successors, (1580), 1239 states have internal predecessors, (1580), 107 states have call successors, (107), 32 states have call predecessors, (107), 32 states have return successors, (107), 96 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-08 18:04:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1794 transitions. [2024-11-08 18:04:55,836 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1794 transitions. Word has length 89 [2024-11-08 18:04:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:55,837 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1794 transitions. [2024-11-08 18:04:55,837 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:04:55,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1794 transitions. [2024-11-08 18:04:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:04:55,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:55,852 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:55,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:04:56,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:56,052 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:04:56,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:56,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1753025496, now seen corresponding path program 1 times [2024-11-08 18:04:56,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:04:56,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596768559] [2024-11-08 18:04:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:56,053 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 18:04:56,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:04:56,054 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:56,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:04:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:56,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:04:56,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:57,600 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 18:04:58,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:58,766 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 245 treesize of output 145 [2024-11-08 18:04:58,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:58,788 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 285 treesize of output 135 [2024-11-08 18:04:58,936 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:04:58,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:58,937 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:04:58,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596768559] [2024-11-08 18:04:58,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596768559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:58,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:58,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:04:58,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164028131] [2024-11-08 18:04:58,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:58,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:04:58,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:04:58,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:04:58,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:04:58,939 INFO L87 Difference]: Start difference. First operand 1368 states and 1794 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:05:05,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:05:05,769 INFO L93 Difference]: Finished difference Result 1870 states and 2453 transitions. [2024-11-08 18:05:05,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:05:05,770 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2024-11-08 18:05:05,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:05:05,777 INFO L225 Difference]: With dead ends: 1870 [2024-11-08 18:05:05,777 INFO L226 Difference]: Without dead ends: 1868 [2024-11-08 18:05:05,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=81, Invalid=338, Unknown=1, NotChecked=0, Total=420 [2024-11-08 18:05:05,778 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 282 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:05:05,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 912 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:05:05,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2024-11-08 18:05:05,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1772. [2024-11-08 18:05:05,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1632 states have (on average 1.298406862745098) internal successors, (2119), 1643 states have internal predecessors, (2119), 107 states have call successors, (107), 32 states have call predecessors, (107), 32 states have return successors, (107), 96 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-08 18:05:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2333 transitions. [2024-11-08 18:05:05,980 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2333 transitions. Word has length 89 [2024-11-08 18:05:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:05:05,981 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2333 transitions. [2024-11-08 18:05:05,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:05:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2333 transitions. [2024-11-08 18:05:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:05:05,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:05:05,983 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:05,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:05:06,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:06,184 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:05:06,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1751178454, now seen corresponding path program 1 times [2024-11-08 18:05:06,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:05:06,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301268032] [2024-11-08 18:05:06,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:06,185 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 18:05:06,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:05:06,188 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:06,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:06,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:05:06,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:05:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:05:06,487 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:05:06,487 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:05:06,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301268032] [2024-11-08 18:05:06,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301268032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:05:06,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:05:06,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:05:06,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119884267] [2024-11-08 18:05:06,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:06,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:05:06,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:05:06,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:05:06,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:05:06,489 INFO L87 Difference]: Start difference. First operand 1772 states and 2333 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:05:06,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:05:06,696 INFO L93 Difference]: Finished difference Result 3613 states and 4759 transitions. [2024-11-08 18:05:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:05:06,696 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2024-11-08 18:05:06,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:05:06,703 INFO L225 Difference]: With dead ends: 3613 [2024-11-08 18:05:06,704 INFO L226 Difference]: Without dead ends: 1844 [2024-11-08 18:05:06,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 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 18:05:06,707 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:05:06,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 477 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:05:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-08 18:05:06,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1844. [2024-11-08 18:05:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1704 states have (on average 1.2857981220657277) internal successors, (2191), 1715 states have internal predecessors, (2191), 107 states have call successors, (107), 32 states have call predecessors, (107), 32 states have return successors, (107), 96 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-08 18:05:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2405 transitions. [2024-11-08 18:05:06,908 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2405 transitions. Word has length 89 [2024-11-08 18:05:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:05:06,909 INFO L471 AbstractCegarLoop]: Abstraction has 1844 states and 2405 transitions. [2024-11-08 18:05:06,909 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:05:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2405 transitions. [2024-11-08 18:05:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 18:05:06,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:05:06,911 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:06,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:07,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:07,111 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:05:07,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:07,112 INFO L85 PathProgramCache]: Analyzing trace with hash 817993263, now seen corresponding path program 1 times [2024-11-08 18:05:07,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:05:07,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39100610] [2024-11-08 18:05:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:07,113 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 18:05:07,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:05:07,114 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:07,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:07,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:05:07,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:05:09,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:05:09,593 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 144 treesize of output 54 [2024-11-08 18:05:09,697 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:05:09,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:05:11,004 INFO L349 Elim1Store]: treesize reduction 15, result has 69.4 percent of original size [2024-11-08 18:05:11,005 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 149 treesize of output 92 [2024-11-08 18:05:20,750 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-08 18:05:20,750 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:05:20,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39100610] [2024-11-08 18:05:20,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39100610] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:05:20,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:05:20,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-08 18:05:20,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266678651] [2024-11-08 18:05:20,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:05:20,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:05:20,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:05:20,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:05:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=276, Unknown=1, NotChecked=0, Total=342 [2024-11-08 18:05:20,752 INFO L87 Difference]: Start difference. First operand 1844 states and 2405 transitions. Second operand has 19 states, 17 states have (on average 5.0) internal successors, (85), 18 states have internal predecessors, (85), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:05:26,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:05:30,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:05:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:05:31,810 INFO L93 Difference]: Finished difference Result 3789 states and 4922 transitions. [2024-11-08 18:05:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:05:31,811 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.0) internal successors, (85), 18 states have internal predecessors, (85), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 90 [2024-11-08 18:05:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:05:31,819 INFO L225 Difference]: With dead ends: 3789 [2024-11-08 18:05:31,819 INFO L226 Difference]: Without dead ends: 1948 [2024-11-08 18:05:31,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=212, Invalid=717, Unknown=1, NotChecked=0, Total=930 [2024-11-08 18:05:31,822 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 269 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:05:31,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1618 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 535 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2024-11-08 18:05:31,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2024-11-08 18:05:32,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1844. [2024-11-08 18:05:32,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1704 states have (on average 1.2769953051643192) internal successors, (2176), 1715 states have internal predecessors, (2176), 107 states have call successors, (107), 32 states have call predecessors, (107), 32 states have return successors, (107), 96 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-08 18:05:32,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2390 transitions. [2024-11-08 18:05:32,014 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2390 transitions. Word has length 90 [2024-11-08 18:05:32,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:05:32,015 INFO L471 AbstractCegarLoop]: Abstraction has 1844 states and 2390 transitions. [2024-11-08 18:05:32,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.0) internal successors, (85), 18 states have internal predecessors, (85), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:05:32,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2390 transitions. [2024-11-08 18:05:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 18:05:32,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:05:32,017 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:32,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Ended with exit code 0 [2024-11-08 18:05:32,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:32,217 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:05:32,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:32,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1176151443, now seen corresponding path program 1 times [2024-11-08 18:05:32,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:05:32,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106970235] [2024-11-08 18:05:32,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:32,218 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 18:05:32,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:05:32,222 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:32,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:32,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:05:32,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:05:34,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:05:34,836 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 144 treesize of output 54 [2024-11-08 18:05:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:05:34,957 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:05:36,098 INFO L349 Elim1Store]: treesize reduction 15, result has 69.4 percent of original size [2024-11-08 18:05:36,098 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 149 treesize of output 92 [2024-11-08 18:05:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-08 18:05:44,767 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:05:44,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106970235] [2024-11-08 18:05:44,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106970235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:05:44,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:05:44,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-08 18:05:44,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22387102] [2024-11-08 18:05:44,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:05:44,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:05:44,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:05:44,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:05:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=276, Unknown=1, NotChecked=0, Total=342 [2024-11-08 18:05:44,769 INFO L87 Difference]: Start difference. First operand 1844 states and 2390 transitions. Second operand has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 18 states have internal predecessors, (90), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:05:50,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:05:54,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:05:55,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:05:55,542 INFO L93 Difference]: Finished difference Result 3789 states and 4892 transitions. [2024-11-08 18:05:55,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:05:55,543 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 18 states have internal predecessors, (90), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 90 [2024-11-08 18:05:55,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:05:55,551 INFO L225 Difference]: With dead ends: 3789 [2024-11-08 18:05:55,551 INFO L226 Difference]: Without dead ends: 1948 [2024-11-08 18:05:55,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=212, Invalid=717, Unknown=1, NotChecked=0, Total=930 [2024-11-08 18:05:55,555 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 403 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:05:55,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 1697 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 549 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2024-11-08 18:05:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2024-11-08 18:05:55,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1844. [2024-11-08 18:05:55,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1704 states have (on average 1.2687793427230047) internal successors, (2162), 1715 states have internal predecessors, (2162), 107 states have call successors, (107), 32 states have call predecessors, (107), 32 states have return successors, (107), 96 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-08 18:05:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2376 transitions. [2024-11-08 18:05:55,775 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2376 transitions. Word has length 90 [2024-11-08 18:05:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:05:55,777 INFO L471 AbstractCegarLoop]: Abstraction has 1844 states and 2376 transitions. [2024-11-08 18:05:55,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 18 states have internal predecessors, (90), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:05:55,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2376 transitions. [2024-11-08 18:05:55,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 18:05:55,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:05:55,779 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:55,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:55,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:55,984 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:05:55,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:55,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1762957457, now seen corresponding path program 1 times [2024-11-08 18:05:55,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:05:55,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157626168] [2024-11-08 18:05:55,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:55,987 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 18:05:55,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:05:55,990 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:05:55,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (28)] Waiting until timeout for monitored process [2024-11-08 18:05:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:56,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:05:56,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:05:58,939 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 18 treesize of output 19 [2024-11-08 18:05:59,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:05:59,143 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 64 treesize of output 24 [2024-11-08 18:05:59,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:05:59,286 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 195 treesize of output 75 [2024-11-08 18:05:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:05:59,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:00,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:00,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157626168] [2024-11-08 18:06:00,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157626168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:00,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735875409] [2024-11-08 18:06:00,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:00,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:00,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:00,876 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:06:00,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-08 18:06:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:04,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 18:06:04,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:04,603 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 22 treesize of output 1 [2024-11-08 18:06:06,489 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 18 treesize of output 19 [2024-11-08 18:06:06,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:06:06,854 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 64 treesize of output 24 [2024-11-08 18:06:07,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:06:07,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 56 [2024-11-08 18:06:07,405 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 23 proven. 30 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 18:06:07,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:07,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735875409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:07,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:06:07,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2024-11-08 18:06:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730567540] [2024-11-08 18:06:07,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:06:07,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 18:06:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 18:06:07,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1330, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 18:06:07,730 INFO L87 Difference]: Start difference. First operand 1844 states and 2376 transitions. Second operand has 31 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 28 states have internal predecessors, (94), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:06:16,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:16,157 INFO L93 Difference]: Finished difference Result 3892 states and 4986 transitions. [2024-11-08 18:06:16,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 18:06:16,159 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 28 states have internal predecessors, (94), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 90 [2024-11-08 18:06:16,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:16,165 INFO L225 Difference]: With dead ends: 3892 [2024-11-08 18:06:16,165 INFO L226 Difference]: Without dead ends: 2051 [2024-11-08 18:06:16,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=526, Invalid=3896, Unknown=0, NotChecked=0, Total=4422 [2024-11-08 18:06:16,170 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 634 mSDsluCounter, 4335 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 4568 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:16,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 4568 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 18:06:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2024-11-08 18:06:16,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 1784. [2024-11-08 18:06:16,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1644 states have (on average 1.27007299270073) internal successors, (2088), 1655 states have internal predecessors, (2088), 107 states have call successors, (107), 32 states have call predecessors, (107), 32 states have return successors, (107), 96 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-08 18:06:16,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2302 transitions. [2024-11-08 18:06:16,396 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2302 transitions. Word has length 90 [2024-11-08 18:06:16,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:16,397 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2302 transitions. [2024-11-08 18:06:16,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 28 states have internal predecessors, (94), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:06:16,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2302 transitions. [2024-11-08 18:06:16,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 18:06:16,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:16,399 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:16,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (28)] Ended with exit code 0 [2024-11-08 18:06:16,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-08 18:06:16,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:16,800 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:16,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:16,800 INFO L85 PathProgramCache]: Analyzing trace with hash 824607084, now seen corresponding path program 1 times [2024-11-08 18:06:16,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:16,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143589348] [2024-11-08 18:06:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:16,801 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 18:06:16,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:16,802 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:16,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (30)] Waiting until timeout for monitored process [2024-11-08 18:06:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:17,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:06:17,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:06:17,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:17,637 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:17,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143589348] [2024-11-08 18:06:17,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143589348] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:17,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:17,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2024-11-08 18:06:17,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934573677] [2024-11-08 18:06:17,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:17,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:17,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:17,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:17,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:06:17,639 INFO L87 Difference]: Start difference. First operand 1784 states and 2302 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:18,111 INFO L93 Difference]: Finished difference Result 4001 states and 5106 transitions. [2024-11-08 18:06:18,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:06:18,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2024-11-08 18:06:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:18,118 INFO L225 Difference]: With dead ends: 4001 [2024-11-08 18:06:18,119 INFO L226 Difference]: Without dead ends: 2220 [2024-11-08 18:06:18,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:06:18,122 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 60 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:18,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 536 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:06:18,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2024-11-08 18:06:18,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2210. [2024-11-08 18:06:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2210 states, 1988 states have (on average 1.2364185110663983) internal successors, (2458), 2008 states have internal predecessors, (2458), 164 states have call successors, (164), 57 states have call predecessors, (164), 57 states have return successors, (164), 144 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:18,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2210 states to 2210 states and 2786 transitions. [2024-11-08 18:06:18,373 INFO L78 Accepts]: Start accepts. Automaton has 2210 states and 2786 transitions. Word has length 91 [2024-11-08 18:06:18,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:18,374 INFO L471 AbstractCegarLoop]: Abstraction has 2210 states and 2786 transitions. [2024-11-08 18:06:18,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:18,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2210 states and 2786 transitions. [2024-11-08 18:06:18,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 18:06:18,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:18,375 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:18,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (30)] Ended with exit code 0 [2024-11-08 18:06:18,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:18,576 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:18,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1478314242, now seen corresponding path program 1 times [2024-11-08 18:06:18,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:18,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52444718] [2024-11-08 18:06:18,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:18,577 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 18:06:18,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:18,578 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:18,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:18,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:06:18,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:19,984 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 18:06:21,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:06:21,187 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 245 treesize of output 145 [2024-11-08 18:06:21,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:06:21,205 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 283 treesize of output 133 [2024-11-08 18:06:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:06:21,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:21,966 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:21,966 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:21,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52444718] [2024-11-08 18:06:21,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52444718] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:21,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:21,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-08 18:06:21,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026309464] [2024-11-08 18:06:21,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:21,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:06:21,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:06:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:06:21,968 INFO L87 Difference]: Start difference. First operand 2210 states and 2786 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:22,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:22,763 INFO L93 Difference]: Finished difference Result 2257 states and 2847 transitions. [2024-11-08 18:06:22,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:06:22,764 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2024-11-08 18:06:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:22,769 INFO L225 Difference]: With dead ends: 2257 [2024-11-08 18:06:22,770 INFO L226 Difference]: Without dead ends: 2255 [2024-11-08 18:06:22,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:06:22,771 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 44 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:22,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 577 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:06:22,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2024-11-08 18:06:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 1735. [2024-11-08 18:06:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1513 states have (on average 1.2194315928618638) internal successors, (1845), 1533 states have internal predecessors, (1845), 164 states have call successors, (164), 57 states have call predecessors, (164), 57 states have return successors, (164), 144 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:23,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2173 transitions. [2024-11-08 18:06:23,016 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2173 transitions. Word has length 91 [2024-11-08 18:06:23,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:23,016 INFO L471 AbstractCegarLoop]: Abstraction has 1735 states and 2173 transitions. [2024-11-08 18:06:23,016 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:23,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2173 transitions. [2024-11-08 18:06:23,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:06:23,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:23,018 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:23,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:23,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:23,219 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:23,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:23,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1623552717, now seen corresponding path program 1 times [2024-11-08 18:06:23,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:23,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006220998] [2024-11-08 18:06:23,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:23,219 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 18:06:23,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:23,220 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:23,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:23,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:06:23,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:23,526 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 17 treesize of output 13 [2024-11-08 18:06:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:23,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:23,632 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:23,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006220998] [2024-11-08 18:06:23,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006220998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:23,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:23,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:06:23,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989225489] [2024-11-08 18:06:23,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:23,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:06:23,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:23,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:06:23,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:06:23,633 INFO L87 Difference]: Start difference. First operand 1735 states and 2173 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:24,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:24,297 INFO L93 Difference]: Finished difference Result 3183 states and 4022 transitions. [2024-11-08 18:06:24,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:06:24,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 94 [2024-11-08 18:06:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:24,312 INFO L225 Difference]: With dead ends: 3183 [2024-11-08 18:06:24,312 INFO L226 Difference]: Without dead ends: 1783 [2024-11-08 18:06:24,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:06:24,315 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 104 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:24,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1003 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:06:24,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2024-11-08 18:06:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1737. [2024-11-08 18:06:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1515 states have (on average 1.219141914191419) internal successors, (1847), 1535 states have internal predecessors, (1847), 164 states have call successors, (164), 57 states have call predecessors, (164), 57 states have return successors, (164), 144 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2175 transitions. [2024-11-08 18:06:24,538 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2175 transitions. Word has length 94 [2024-11-08 18:06:24,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:24,538 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2175 transitions. [2024-11-08 18:06:24,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:24,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2175 transitions. [2024-11-08 18:06:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:06:24,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:24,540 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:24,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:24,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:24,741 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:24,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:24,741 INFO L85 PathProgramCache]: Analyzing trace with hash 695992945, now seen corresponding path program 1 times [2024-11-08 18:06:24,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:24,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901158636] [2024-11-08 18:06:24,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:24,741 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 18:06:24,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:24,742 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:24,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:25,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:06:25,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:25,044 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 17 treesize of output 9 [2024-11-08 18:06:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:25,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:25,061 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:25,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901158636] [2024-11-08 18:06:25,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901158636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:25,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:25,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:06:25,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094881323] [2024-11-08 18:06:25,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:25,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:06:25,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:25,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:06:25,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:06:25,062 INFO L87 Difference]: Start difference. First operand 1737 states and 2175 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:25,261 INFO L93 Difference]: Finished difference Result 3223 states and 4059 transitions. [2024-11-08 18:06:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:06:25,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-08 18:06:25,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:25,266 INFO L225 Difference]: With dead ends: 3223 [2024-11-08 18:06:25,266 INFO L226 Difference]: Without dead ends: 1737 [2024-11-08 18:06:25,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 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 18:06:25,270 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 242 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 18:06:25,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:06:25,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2024-11-08 18:06:25,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1737. [2024-11-08 18:06:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1515 states have (on average 1.2112211221122111) internal successors, (1835), 1535 states have internal predecessors, (1835), 164 states have call successors, (164), 57 states have call predecessors, (164), 57 states have return successors, (164), 144 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:25,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2163 transitions. [2024-11-08 18:06:25,626 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2163 transitions. Word has length 97 [2024-11-08 18:06:25,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:25,627 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2163 transitions. [2024-11-08 18:06:25,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2163 transitions. [2024-11-08 18:06:25,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:06:25,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:25,629 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:25,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:25,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:25,829 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:25,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:25,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2082196339, now seen corresponding path program 1 times [2024-11-08 18:06:25,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:25,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146699159] [2024-11-08 18:06:25,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:25,830 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 18:06:25,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:25,831 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:25,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:26,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:06:26,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:26,424 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 27 treesize of output 19 [2024-11-08 18:06:26,427 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 13 treesize of output 9 [2024-11-08 18:06:26,702 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 17 treesize of output 13 [2024-11-08 18:06:26,782 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 35 treesize of output 19 [2024-11-08 18:06:26,794 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 21 [2024-11-08 18:06:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 74 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 18:06:26,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:27,143 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:27,144 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:27,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146699159] [2024-11-08 18:06:27,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146699159] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:27,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:27,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-11-08 18:06:27,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054241598] [2024-11-08 18:06:27,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:27,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:06:27,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:27,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:06:27,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:06:27,145 INFO L87 Difference]: Start difference. First operand 1737 states and 2163 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:28,161 INFO L93 Difference]: Finished difference Result 3712 states and 4657 transitions. [2024-11-08 18:06:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:06:28,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-08 18:06:28,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:28,170 INFO L225 Difference]: With dead ends: 3712 [2024-11-08 18:06:28,170 INFO L226 Difference]: Without dead ends: 2296 [2024-11-08 18:06:28,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:06:28,173 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 115 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:28,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 776 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:06:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2024-11-08 18:06:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2252. [2024-11-08 18:06:28,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 1973 states have (on average 1.2062848454130766) internal successors, (2380), 1999 states have internal predecessors, (2380), 208 states have call successors, (208), 70 states have call predecessors, (208), 70 states have return successors, (208), 182 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-08 18:06:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 2796 transitions. [2024-11-08 18:06:28,606 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 2796 transitions. Word has length 97 [2024-11-08 18:06:28,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:28,606 INFO L471 AbstractCegarLoop]: Abstraction has 2252 states and 2796 transitions. [2024-11-08 18:06:28,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 2796 transitions. [2024-11-08 18:06:28,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:06:28,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:28,609 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:28,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Ended with exit code 0 [2024-11-08 18:06:28,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:28,810 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:28,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:28,810 INFO L85 PathProgramCache]: Analyzing trace with hash -263911876, now seen corresponding path program 1 times [2024-11-08 18:06:28,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:28,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34332486] [2024-11-08 18:06:28,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:28,811 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 18:06:28,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:28,812 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:28,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:29,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:06:29,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:06:29,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:29,678 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:29,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34332486] [2024-11-08 18:06:29,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34332486] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:29,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:29,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2024-11-08 18:06:29,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790354485] [2024-11-08 18:06:29,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:29,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:29,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:29,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:29,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:06:29,680 INFO L87 Difference]: Start difference. First operand 2252 states and 2796 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:30,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:30,062 INFO L93 Difference]: Finished difference Result 4151 states and 5172 transitions. [2024-11-08 18:06:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:06:30,063 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-08 18:06:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:30,069 INFO L225 Difference]: With dead ends: 4151 [2024-11-08 18:06:30,070 INFO L226 Difference]: Without dead ends: 2284 [2024-11-08 18:06:30,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:06:30,073 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 144 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:30,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 508 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:06:30,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2024-11-08 18:06:30,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 2276. [2024-11-08 18:06:30,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2276 states, 1991 states have (on average 1.1983927674535408) internal successors, (2386), 2017 states have internal predecessors, (2386), 208 states have call successors, (208), 76 states have call predecessors, (208), 76 states have return successors, (208), 182 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-08 18:06:30,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2276 states to 2276 states and 2802 transitions. [2024-11-08 18:06:30,469 INFO L78 Accepts]: Start accepts. Automaton has 2276 states and 2802 transitions. Word has length 97 [2024-11-08 18:06:30,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:30,469 INFO L471 AbstractCegarLoop]: Abstraction has 2276 states and 2802 transitions. [2024-11-08 18:06:30,469 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:30,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2276 states and 2802 transitions. [2024-11-08 18:06:30,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:06:30,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:30,471 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:30,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:30,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:30,672 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:30,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash 835352594, now seen corresponding path program 1 times [2024-11-08 18:06:30,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:30,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362581955] [2024-11-08 18:06:30,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:30,673 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 18:06:30,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:30,674 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:30,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Waiting until timeout for monitored process [2024-11-08 18:06:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:30,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:06:30,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:31,458 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 27 treesize of output 15 [2024-11-08 18:06:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 18:06:31,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:31,638 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362581955] [2024-11-08 18:06:31,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362581955] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:31,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:31,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-11-08 18:06:31,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376969263] [2024-11-08 18:06:31,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:31,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:31,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:31,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:31,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:06:31,640 INFO L87 Difference]: Start difference. First operand 2276 states and 2802 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:32,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:32,030 INFO L93 Difference]: Finished difference Result 4167 states and 5144 transitions. [2024-11-08 18:06:32,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:06:32,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 99 [2024-11-08 18:06:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:32,037 INFO L225 Difference]: With dead ends: 4167 [2024-11-08 18:06:32,037 INFO L226 Difference]: Without dead ends: 2276 [2024-11-08 18:06:32,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:06:32,041 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 110 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:32,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 419 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:06:32,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2024-11-08 18:06:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2028. [2024-11-08 18:06:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1802 states have (on average 1.201997780244173) internal successors, (2166), 1824 states have internal predecessors, (2166), 164 states have call successors, (164), 61 states have call predecessors, (164), 61 states have return successors, (164), 142 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2494 transitions. [2024-11-08 18:06:32,297 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2494 transitions. Word has length 99 [2024-11-08 18:06:32,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:32,298 INFO L471 AbstractCegarLoop]: Abstraction has 2028 states and 2494 transitions. [2024-11-08 18:06:32,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2494 transitions. [2024-11-08 18:06:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:06:32,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:32,300 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:32,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Ended with exit code 0 [2024-11-08 18:06:32,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:32,501 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:32,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash 259568131, now seen corresponding path program 1 times [2024-11-08 18:06:32,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:32,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805181076] [2024-11-08 18:06:32,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:32,502 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 18:06:32,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:32,505 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:32,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:32,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:06:32,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:32,990 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 19 treesize of output 11 [2024-11-08 18:06:33,013 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:33,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:33,014 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:33,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805181076] [2024-11-08 18:06:33,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805181076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:33,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:33,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:06:33,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159808010] [2024-11-08 18:06:33,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:33,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:33,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:33,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:33,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:06:33,016 INFO L87 Difference]: Start difference. First operand 2028 states and 2494 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:33,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:33,720 INFO L93 Difference]: Finished difference Result 4300 states and 5306 transitions. [2024-11-08 18:06:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:33,720 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 102 [2024-11-08 18:06:33,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:33,727 INFO L225 Difference]: With dead ends: 4300 [2024-11-08 18:06:33,727 INFO L226 Difference]: Without dead ends: 2598 [2024-11-08 18:06:33,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 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 18:06:33,730 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 91 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:33,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 656 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:06:33,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2024-11-08 18:06:34,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2592. [2024-11-08 18:06:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2592 states, 2259 states have (on average 1.1885790172642763) internal successors, (2685), 2285 states have internal predecessors, (2685), 242 states have call successors, (242), 90 states have call predecessors, (242), 90 states have return successors, (242), 216 states have call predecessors, (242), 242 states have call successors, (242) [2024-11-08 18:06:34,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 3169 transitions. [2024-11-08 18:06:34,197 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 3169 transitions. Word has length 102 [2024-11-08 18:06:34,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:34,198 INFO L471 AbstractCegarLoop]: Abstraction has 2592 states and 3169 transitions. [2024-11-08 18:06:34,198 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 3169 transitions. [2024-11-08 18:06:34,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:06:34,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:34,200 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:34,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:06:34,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:34,404 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:34,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:34,405 INFO L85 PathProgramCache]: Analyzing trace with hash -140861748, now seen corresponding path program 1 times [2024-11-08 18:06:34,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:34,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149128516] [2024-11-08 18:06:34,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:34,406 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 18:06:34,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:34,407 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:34,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:34,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:06:34,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:34,884 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 18 treesize of output 14 [2024-11-08 18:06:34,969 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 22 treesize of output 14 [2024-11-08 18:06:34,994 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 20 treesize of output 12 [2024-11-08 18:06:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:35,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:35,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:35,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149128516] [2024-11-08 18:06:35,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149128516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:35,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:35,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:06:35,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393589534] [2024-11-08 18:06:35,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:35,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:06:35,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:35,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:06:35,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:06:35,160 INFO L87 Difference]: Start difference. First operand 2592 states and 3169 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:36,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:36,826 INFO L93 Difference]: Finished difference Result 4902 states and 6015 transitions. [2024-11-08 18:06:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:06:36,826 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 102 [2024-11-08 18:06:36,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:36,831 INFO L225 Difference]: With dead ends: 4902 [2024-11-08 18:06:36,831 INFO L226 Difference]: Without dead ends: 2636 [2024-11-08 18:06:36,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:06:36,836 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 98 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:36,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1882 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:06:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2024-11-08 18:06:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2568. [2024-11-08 18:06:37,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2235 states have (on average 1.1870246085011185) internal successors, (2653), 2261 states have internal predecessors, (2653), 242 states have call successors, (242), 90 states have call predecessors, (242), 90 states have return successors, (242), 216 states have call predecessors, (242), 242 states have call successors, (242) [2024-11-08 18:06:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 3137 transitions. [2024-11-08 18:06:37,310 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 3137 transitions. Word has length 102 [2024-11-08 18:06:37,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:37,310 INFO L471 AbstractCegarLoop]: Abstraction has 2568 states and 3137 transitions. [2024-11-08 18:06:37,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:37,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 3137 transitions. [2024-11-08 18:06:37,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:06:37,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:37,312 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:37,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:37,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:37,513 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:37,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:37,514 INFO L85 PathProgramCache]: Analyzing trace with hash 960795079, now seen corresponding path program 1 times [2024-11-08 18:06:37,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:37,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511888282] [2024-11-08 18:06:37,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:37,515 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 18:06:37,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:37,518 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:37,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:37,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:06:37,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:37,894 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 17 treesize of output 13 [2024-11-08 18:06:37,965 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 13 [2024-11-08 18:06:37,988 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 19 treesize of output 11 [2024-11-08 18:06:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:38,141 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:38,142 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:38,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511888282] [2024-11-08 18:06:38,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511888282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:38,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:38,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:06:38,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718965578] [2024-11-08 18:06:38,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:38,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:06:38,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:38,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:06:38,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:06:38,143 INFO L87 Difference]: Start difference. First operand 2568 states and 3137 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:39,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:39,654 INFO L93 Difference]: Finished difference Result 4912 states and 6025 transitions. [2024-11-08 18:06:39,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:06:39,655 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 104 [2024-11-08 18:06:39,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:39,662 INFO L225 Difference]: With dead ends: 4912 [2024-11-08 18:06:39,662 INFO L226 Difference]: Without dead ends: 2670 [2024-11-08 18:06:39,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:06:39,667 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 112 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:39,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1784 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 18:06:39,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2024-11-08 18:06:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2576. [2024-11-08 18:06:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2576 states, 2243 states have (on average 1.1863575568435132) internal successors, (2661), 2269 states have internal predecessors, (2661), 242 states have call successors, (242), 90 states have call predecessors, (242), 90 states have return successors, (242), 216 states have call predecessors, (242), 242 states have call successors, (242) [2024-11-08 18:06:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3145 transitions. [2024-11-08 18:06:40,145 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3145 transitions. Word has length 104 [2024-11-08 18:06:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:40,146 INFO L471 AbstractCegarLoop]: Abstraction has 2576 states and 3145 transitions. [2024-11-08 18:06:40,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3145 transitions. [2024-11-08 18:06:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:06:40,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:40,148 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:40,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:06:40,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:40,349 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:40,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:40,349 INFO L85 PathProgramCache]: Analyzing trace with hash 560365200, now seen corresponding path program 1 times [2024-11-08 18:06:40,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:40,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421838503] [2024-11-08 18:06:40,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:40,350 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 18:06:40,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:40,353 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:40,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:40,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:06:40,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:40,834 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 20 treesize of output 12 [2024-11-08 18:06:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 18:06:40,860 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:40,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:40,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421838503] [2024-11-08 18:06:40,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421838503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:40,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:40,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:06:40,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690980894] [2024-11-08 18:06:40,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:40,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:40,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:40,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:06:40,863 INFO L87 Difference]: Start difference. First operand 2576 states and 3145 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:41,637 INFO L93 Difference]: Finished difference Result 5222 states and 6386 transitions. [2024-11-08 18:06:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:41,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 104 [2024-11-08 18:06:41,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:41,645 INFO L225 Difference]: With dead ends: 5222 [2024-11-08 18:06:41,645 INFO L226 Difference]: Without dead ends: 2972 [2024-11-08 18:06:41,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 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 18:06:41,649 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 90 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:41,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 543 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:06:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2024-11-08 18:06:42,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 2877. [2024-11-08 18:06:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2487 states have (on average 1.1801367108966627) internal successors, (2935), 2517 states have internal predecessors, (2935), 284 states have call successors, (284), 105 states have call predecessors, (284), 105 states have return successors, (284), 254 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-08 18:06:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 3503 transitions. [2024-11-08 18:06:42,182 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 3503 transitions. Word has length 104 [2024-11-08 18:06:42,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:42,183 INFO L471 AbstractCegarLoop]: Abstraction has 2877 states and 3503 transitions. [2024-11-08 18:06:42,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:42,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 3503 transitions. [2024-11-08 18:06:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-08 18:06:42,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:42,188 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:42,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:42,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:42,389 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:42,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:42,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1711029919, now seen corresponding path program 1 times [2024-11-08 18:06:42,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:42,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525595532] [2024-11-08 18:06:42,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:42,390 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 18:06:42,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:42,391 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:42,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:42,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:06:42,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 367 proven. 78 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-08 18:06:43,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-11-08 18:06:43,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:43,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525595532] [2024-11-08 18:06:43,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525595532] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:43,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:43,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2024-11-08 18:06:43,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985594192] [2024-11-08 18:06:43,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:43,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:43,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:43,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:43,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:06:43,435 INFO L87 Difference]: Start difference. First operand 2877 states and 3503 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:06:43,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:43,874 INFO L93 Difference]: Finished difference Result 5485 states and 6675 transitions. [2024-11-08 18:06:43,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:06:43,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2024-11-08 18:06:43,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:43,881 INFO L225 Difference]: With dead ends: 5485 [2024-11-08 18:06:43,881 INFO L226 Difference]: Without dead ends: 2934 [2024-11-08 18:06:43,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:06:43,885 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 78 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:43,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 587 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:06:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2024-11-08 18:06:44,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2227. [2024-11-08 18:06:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1992 states have (on average 1.1917670682730923) internal successors, (2374), 2000 states have internal predecessors, (2374), 164 states have call successors, (164), 70 states have call predecessors, (164), 70 states have return successors, (164), 156 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:44,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 2702 transitions. [2024-11-08 18:06:44,226 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 2702 transitions. Word has length 177 [2024-11-08 18:06:44,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:44,227 INFO L471 AbstractCegarLoop]: Abstraction has 2227 states and 2702 transitions. [2024-11-08 18:06:44,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:06:44,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 2702 transitions. [2024-11-08 18:06:44,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-08 18:06:44,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:44,231 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:44,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:06:44,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:44,431 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:44,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1436318813, now seen corresponding path program 1 times [2024-11-08 18:06:44,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:44,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638405489] [2024-11-08 18:06:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:44,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:06:44,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:44,433 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:44,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (42)] Waiting until timeout for monitored process [2024-11-08 18:06:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:44,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:06:44,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 365 proven. 32 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-08 18:06:45,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-11-08 18:06:45,533 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:45,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638405489] [2024-11-08 18:06:45,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638405489] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:45,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:06:45,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2024-11-08 18:06:45,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275303389] [2024-11-08 18:06:45,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:45,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:06:45,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:45,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:06:45,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:06:45,536 INFO L87 Difference]: Start difference. First operand 2227 states and 2702 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:06:45,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:45,985 INFO L93 Difference]: Finished difference Result 4700 states and 5692 transitions. [2024-11-08 18:06:45,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:45,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2024-11-08 18:06:45,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:45,991 INFO L225 Difference]: With dead ends: 4700 [2024-11-08 18:06:45,991 INFO L226 Difference]: Without dead ends: 2799 [2024-11-08 18:06:45,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:06:45,995 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 85 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:45,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 585 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:06:45,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2024-11-08 18:06:46,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2218. [2024-11-08 18:06:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2218 states, 1983 states have (on average 1.1880988401412003) internal successors, (2356), 1991 states have internal predecessors, (2356), 164 states have call successors, (164), 70 states have call predecessors, (164), 70 states have return successors, (164), 156 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:46,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 2684 transitions. [2024-11-08 18:06:46,366 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 2684 transitions. Word has length 177 [2024-11-08 18:06:46,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:46,367 INFO L471 AbstractCegarLoop]: Abstraction has 2218 states and 2684 transitions. [2024-11-08 18:06:46,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:06:46,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 2684 transitions. [2024-11-08 18:06:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-08 18:06:46,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:46,370 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:46,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (42)] Forceful destruction successful, exit code 0 [2024-11-08 18:06:46,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:46,571 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:46,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:46,571 INFO L85 PathProgramCache]: Analyzing trace with hash 245238943, now seen corresponding path program 1 times [2024-11-08 18:06:46,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:46,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922365615] [2024-11-08 18:06:46,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:46,572 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 18:06:46,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:46,573 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:46,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (43)] Waiting until timeout for monitored process [2024-11-08 18:06:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:46,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:06:46,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2024-11-08 18:06:47,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:47,038 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:47,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922365615] [2024-11-08 18:06:47,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922365615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:47,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:47,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:06:47,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316572886] [2024-11-08 18:06:47,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:47,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:06:47,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:47,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:06:47,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:06:47,039 INFO L87 Difference]: Start difference. First operand 2218 states and 2684 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:47,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:47,412 INFO L93 Difference]: Finished difference Result 4522 states and 5459 transitions. [2024-11-08 18:06:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:06:47,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 179 [2024-11-08 18:06:47,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:47,416 INFO L225 Difference]: With dead ends: 4522 [2024-11-08 18:06:47,416 INFO L226 Difference]: Without dead ends: 2630 [2024-11-08 18:06:47,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 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 18:06:47,419 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 64 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:47,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 230 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:06:47,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-11-08 18:06:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2173. [2024-11-08 18:06:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 1938 states have (on average 1.1764705882352942) internal successors, (2280), 1946 states have internal predecessors, (2280), 164 states have call successors, (164), 70 states have call predecessors, (164), 70 states have return successors, (164), 156 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:47,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 2608 transitions. [2024-11-08 18:06:47,683 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 2608 transitions. Word has length 179 [2024-11-08 18:06:47,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:47,683 INFO L471 AbstractCegarLoop]: Abstraction has 2173 states and 2608 transitions. [2024-11-08 18:06:47,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:47,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 2608 transitions. [2024-11-08 18:06:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-08 18:06:47,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:47,687 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:47,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (43)] Ended with exit code 0 [2024-11-08 18:06:47,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:47,891 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:47,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash 487621370, now seen corresponding path program 1 times [2024-11-08 18:06:47,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:47,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145108856] [2024-11-08 18:06:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:47,893 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 18:06:47,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:47,895 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:47,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (44)] Waiting until timeout for monitored process [2024-11-08 18:06:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:48,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:06:48,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2024-11-08 18:06:48,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:48,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:48,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145108856] [2024-11-08 18:06:48,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145108856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:48,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:48,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:06:48,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962169477] [2024-11-08 18:06:48,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:48,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:06:48,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:48,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:06:48,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:06:48,323 INFO L87 Difference]: Start difference. First operand 2173 states and 2608 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:48,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:48,557 INFO L93 Difference]: Finished difference Result 3955 states and 4746 transitions. [2024-11-08 18:06:48,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:06:48,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 180 [2024-11-08 18:06:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:48,562 INFO L225 Difference]: With dead ends: 3955 [2024-11-08 18:06:48,562 INFO L226 Difference]: Without dead ends: 1918 [2024-11-08 18:06:48,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 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 18:06:48,564 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 70 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:48,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 279 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:06:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2024-11-08 18:06:48,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1905. [2024-11-08 18:06:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1670 states have (on average 1.137125748502994) internal successors, (1899), 1678 states have internal predecessors, (1899), 164 states have call successors, (164), 70 states have call predecessors, (164), 70 states have return successors, (164), 156 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-08 18:06:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2227 transitions. [2024-11-08 18:06:48,798 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2227 transitions. Word has length 180 [2024-11-08 18:06:48,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:48,798 INFO L471 AbstractCegarLoop]: Abstraction has 1905 states and 2227 transitions. [2024-11-08 18:06:48,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:48,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2227 transitions. [2024-11-08 18:06:48,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-08 18:06:48,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:48,800 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:48,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (44)] Forceful destruction successful, exit code 0 [2024-11-08 18:06:49,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:49,001 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:06:49,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash -459520472, now seen corresponding path program 1 times [2024-11-08 18:06:49,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:06:49,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792588565] [2024-11-08 18:06:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:49,002 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 18:06:49,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:06:49,005 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:49,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (45)] Waiting until timeout for monitored process [2024-11-08 18:06:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:49,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:06:49,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2024-11-08 18:06:49,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:06:49,492 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:06:49,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792588565] [2024-11-08 18:06:49,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792588565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:49,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:49,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:06:49,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54079127] [2024-11-08 18:06:49,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:49,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:06:49,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:06:49,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:06:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:06:49,494 INFO L87 Difference]: Start difference. First operand 1905 states and 2227 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:49,759 INFO L93 Difference]: Finished difference Result 3622 states and 4239 transitions. [2024-11-08 18:06:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:06:49,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 182 [2024-11-08 18:06:49,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:49,762 INFO L225 Difference]: With dead ends: 3622 [2024-11-08 18:06:49,762 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:06:49,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 177 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 18:06:49,765 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:49,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 532 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:06:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:06:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:06:49,766 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 18:06:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:06:49,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 182 [2024-11-08 18:06:49,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:49,768 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:06:49,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-08 18:06:49,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:06:49,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:06:49,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:06:49,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 (45)] Forceful destruction successful, exit code 0 [2024-11-08 18:06:49,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/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 18:06:49,974 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:49,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:12:23,554 WARN L286 SmtUtils]: Spent 5.04m on a formula simplification. DAG size of input: 614 DAG size of output: 507 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:14:19,640 WARN L286 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 217 DAG size of output: 125 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-08 18:15:48,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-08 18:15:48,055 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-08 18:15:48,057 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:309) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:162) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.(HoareAnnotationComposer.java:111) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.computeHoareAnnotationComposer(NwaHoareProofProducer.java:152) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.lambda$3(NwaHoareProofProducer.java:139) at de.uni_freiburg.informatik.ultimate.util.statistics.TimeTracker.measure(TimeTracker.java:51) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer$Statistics.measureProofComputation(NwaHoareProofProducer.java:191) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.computeProof(NwaHoareProofProducer.java:138) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.getOrComputeProof(NwaHoareProofProducer.java:132) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.NwaHoareProofProducer.getOrComputeProof(NwaHoareProofProducer.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.BacktranslatingProofProducer.getOrComputeProof(BacktranslatingProofProducer.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 42 more [2024-11-08 18:15:48,064 INFO L158 Benchmark]: Toolchain (without parser) took 734069.56ms. Allocated memory was 94.4MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 70.2MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-08 18:15:48,064 INFO L158 Benchmark]: CDTParser took 1.32ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:15:48,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.16ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 53.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 18:15:48,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.55ms. Allocated memory is still 94.4MB. Free memory was 53.7MB in the beginning and 50.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:15:48,065 INFO L158 Benchmark]: Boogie Preprocessor took 114.40ms. Allocated memory is still 94.4MB. Free memory was 50.5MB in the beginning and 44.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:15:48,065 INFO L158 Benchmark]: RCFGBuilder took 1276.66ms. Allocated memory is still 94.4MB. Free memory was 44.7MB in the beginning and 65.5MB in the end (delta: -20.8MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-08 18:15:48,065 INFO L158 Benchmark]: TraceAbstraction took 732077.68ms. Allocated memory was 94.4MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 65.0MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-08 18:15:48,066 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.32ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.16ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 53.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.55ms. Allocated memory is still 94.4MB. Free memory was 53.7MB in the beginning and 50.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.40ms. Allocated memory is still 94.4MB. Free memory was 50.5MB in the beginning and 44.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1276.66ms. Allocated memory is still 94.4MB. Free memory was 44.7MB in the beginning and 65.5MB in the end (delta: -20.8MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 732077.68ms. Allocated memory was 94.4MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 65.0MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.2GB. 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 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f83b44-0fc1-4c8f-868a-da9335e529aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")