./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/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_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/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_385123ae-a12f-4edf-94c8-aaeb0c333e24/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 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:18:09,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:18:09,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:18:09,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:18:09,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:18:09,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:18:09,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:18:09,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:18:09,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:18:09,832 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:18:09,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:18:09,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:18:09,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:18:09,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:18:09,839 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:18:09,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:18:09,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:18:09,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:18:09,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:18:09,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:18:09,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:18:09,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:18:09,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:18:09,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:18:09,848 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:18:09,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:18:09,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:18:09,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:18:09,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:18:09,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:18:09,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:18:09,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:18:09,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:18:09,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:18:09,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:18:09,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:18:09,854 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:18:09,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:18:09,856 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:18:09,856 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:18:09,857 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:18:09,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:18:09,858 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_385123ae-a12f-4edf-94c8-aaeb0c333e24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 [2024-11-08 19:18:10,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:18:10,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:18:10,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:18:10,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:18:10,263 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:18:10,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i Unable to find full path for "g++" [2024-11-08 19:18:12,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:18:12,627 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:18:12,628 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-11-08 19:18:12,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/data/6ec7f38cd/04600d78f2fd4a90a431a5e923a4b58f/FLAG12e9ddb72 [2024-11-08 19:18:12,671 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/data/6ec7f38cd/04600d78f2fd4a90a431a5e923a4b58f [2024-11-08 19:18:12,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:18:12,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:18:12,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:18:12,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:18:12,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:18:12,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:12" (1/1) ... [2024-11-08 19:18:12,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f27714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:12, skipping insertion in model container [2024-11-08 19:18:12,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:12" (1/1) ... [2024-11-08 19:18:12,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:18:12,981 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_385123ae-a12f-4edf-94c8-aaeb0c333e24/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-11-08 19:18:13,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:18:13,092 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:18:13,112 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_385123ae-a12f-4edf-94c8-aaeb0c333e24/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-11-08 19:18:13,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:18:13,191 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:18:13,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13 WrapperNode [2024-11-08 19:18:13,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:18:13,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:18:13,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:18:13,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:18:13,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,262 INFO L138 Inliner]: procedures = 29, calls = 131, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 412 [2024-11-08 19:18:13,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:18:13,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:18:13,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:18:13,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:18:13,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,308 INFO L175 MemorySlicer]: Split 103 memory accesses to 7 slices as follows [2, 13, 18, 8, 45, 11, 6]. 44 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 2, 2, 1, 4, 1, 1]. The 15 writes are split as follows [0, 2, 2, 1, 5, 3, 2]. [2024-11-08 19:18:13,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:18:13,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:18:13,348 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:18:13,348 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:18:13,349 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (1/1) ... [2024-11-08 19:18:13,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:18:13,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:13,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:18:13,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:18:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:18:13,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 19:18:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 19:18:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 19:18:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 19:18:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 19:18:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 19:18:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 19:18:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 19:18:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 19:18:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 19:18:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 19:18:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 19:18:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-08 19:18:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-08 19:18:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 19:18:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 19:18:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 19:18:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 19:18:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 19:18:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-08 19:18:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-08 19:18:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 19:18:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 19:18:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 19:18:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 19:18:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 19:18:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 19:18:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 19:18:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 19:18:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 19:18:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 19:18:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 19:18:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-08 19:18:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-08 19:18:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-08 19:18:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:18:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:18:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:18:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 19:18:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 19:18:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 19:18:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 19:18:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 19:18:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 19:18:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:18:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:18:13,712 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:18:13,716 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:18:14,455 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-11-08 19:18:14,456 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:18:14,481 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:18:14,482 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:18:14,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:14 BoogieIcfgContainer [2024-11-08 19:18:14,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:18:14,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:18:14,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:18:14,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:18:14,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:18:12" (1/3) ... [2024-11-08 19:18:14,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201e3795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:14, skipping insertion in model container [2024-11-08 19:18:14,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:13" (2/3) ... [2024-11-08 19:18:14,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201e3795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:14, skipping insertion in model container [2024-11-08 19:18:14,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:14" (3/3) ... [2024-11-08 19:18:14,499 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-79.i [2024-11-08 19:18:14,520 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:18:14,521 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:18:14,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:18:14,626 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;@1cefa180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:18:14,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:18:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:14,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 19:18:14,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:14,650 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:14,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:14,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:14,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1485728134, now seen corresponding path program 1 times [2024-11-08 19:18:14,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:14,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630749777] [2024-11-08 19:18:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:14,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:15,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:15,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630749777] [2024-11-08 19:18:15,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630749777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:15,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:15,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:18:15,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333331494] [2024-11-08 19:18:15,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:15,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:18:15,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:18:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:18:15,182 INFO L87 Difference]: Start difference. First operand has 95 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:15,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:15,221 INFO L93 Difference]: Finished difference Result 183 states and 281 transitions. [2024-11-08 19:18:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:18:15,223 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-08 19:18:15,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:15,232 INFO L225 Difference]: With dead ends: 183 [2024-11-08 19:18:15,233 INFO L226 Difference]: Without dead ends: 91 [2024-11-08 19:18:15,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:18:15,249 INFO L432 NwaCegarLoop]: 131 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, 131 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 19:18:15,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-08 19:18:15,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-08 19:18:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:15,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2024-11-08 19:18:15,332 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 101 [2024-11-08 19:18:15,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:15,333 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2024-11-08 19:18:15,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:15,334 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-11-08 19:18:15,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 19:18:15,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:15,343 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:15,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:18:15,343 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:15,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1986428868, now seen corresponding path program 1 times [2024-11-08 19:18:15,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:15,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060795865] [2024-11-08 19:18:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:15,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:15,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:16,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:16,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060795865] [2024-11-08 19:18:16,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060795865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:16,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:16,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:16,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223451401] [2024-11-08 19:18:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:16,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:16,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:16,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:16,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:16,055 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:16,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:16,134 INFO L93 Difference]: Finished difference Result 181 states and 262 transitions. [2024-11-08 19:18:16,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:16,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-11-08 19:18:16,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:16,140 INFO L225 Difference]: With dead ends: 181 [2024-11-08 19:18:16,140 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 19:18:16,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:16,144 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:16,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:16,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 19:18:16,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-08 19:18:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:16,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-11-08 19:18:16,159 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 101 [2024-11-08 19:18:16,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:16,162 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-11-08 19:18:16,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:16,162 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-08 19:18:16,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 19:18:16,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:16,166 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:16,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:18:16,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:16,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1815516479, now seen corresponding path program 1 times [2024-11-08 19:18:16,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:16,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904050922] [2024-11-08 19:18:16,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:16,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:16,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904050922] [2024-11-08 19:18:16,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904050922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:16,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:16,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:16,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361567064] [2024-11-08 19:18:16,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:16,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:16,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:16,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:16,510 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:16,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:16,552 INFO L93 Difference]: Finished difference Result 186 states and 267 transitions. [2024-11-08 19:18:16,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-08 19:18:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:16,555 INFO L225 Difference]: With dead ends: 186 [2024-11-08 19:18:16,555 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 19:18:16,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 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 19:18:16,558 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 375 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 19:18:16,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 375 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 19:18:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-08 19:18:16,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 82 states have internal predecessors, (113), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:16,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2024-11-08 19:18:16,570 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 135 transitions. Word has length 103 [2024-11-08 19:18:16,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:16,571 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 135 transitions. [2024-11-08 19:18:16,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:16,572 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2024-11-08 19:18:16,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 19:18:16,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:16,575 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:16,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:18:16,575 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:16,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:16,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1817363521, now seen corresponding path program 1 times [2024-11-08 19:18:16,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:16,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350138450] [2024-11-08 19:18:16,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:16,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:17,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:17,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350138450] [2024-11-08 19:18:17,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350138450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:17,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:17,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:17,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250751293] [2024-11-08 19:18:17,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:17,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:17,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:17,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:17,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:17,133 INFO L87 Difference]: Start difference. First operand 95 states and 135 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:17,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:17,401 INFO L93 Difference]: Finished difference Result 269 states and 383 transitions. [2024-11-08 19:18:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:17,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-08 19:18:17,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:17,406 INFO L225 Difference]: With dead ends: 269 [2024-11-08 19:18:17,410 INFO L226 Difference]: Without dead ends: 177 [2024-11-08 19:18:17,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:17,413 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 111 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:17,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 747 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-08 19:18:17,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 97. [2024-11-08 19:18:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 84 states have (on average 1.369047619047619) internal successors, (115), 84 states have internal predecessors, (115), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions. [2024-11-08 19:18:17,444 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 103 [2024-11-08 19:18:17,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:17,445 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 137 transitions. [2024-11-08 19:18:17,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:17,445 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions. [2024-11-08 19:18:17,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:18:17,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:17,452 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:17,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:18:17,457 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:17,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:17,457 INFO L85 PathProgramCache]: Analyzing trace with hash 351928924, now seen corresponding path program 1 times [2024-11-08 19:18:17,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:17,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016744119] [2024-11-08 19:18:17,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:17,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:19,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:19,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016744119] [2024-11-08 19:18:19,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016744119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:19,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:19,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:18:19,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522066127] [2024-11-08 19:18:19,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:19,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:18:19,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:19,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:18:19,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:18:19,352 INFO L87 Difference]: Start difference. First operand 97 states and 137 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:21,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:21,073 INFO L93 Difference]: Finished difference Result 644 states and 907 transitions. [2024-11-08 19:18:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-08 19:18:21,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-08 19:18:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:21,078 INFO L225 Difference]: With dead ends: 644 [2024-11-08 19:18:21,078 INFO L226 Difference]: Without dead ends: 550 [2024-11-08 19:18:21,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=792, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:18:21,081 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 774 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:21,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1612 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 19:18:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-08 19:18:21,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 355. [2024-11-08 19:18:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 310 states have (on average 1.3838709677419354) internal successors, (429), 312 states have internal predecessors, (429), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 19:18:21,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 509 transitions. [2024-11-08 19:18:21,139 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 509 transitions. Word has length 104 [2024-11-08 19:18:21,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:21,140 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 509 transitions. [2024-11-08 19:18:21,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:21,140 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 509 transitions. [2024-11-08 19:18:21,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 19:18:21,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:21,144 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:21,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:18:21,144 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:21,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:21,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1765384957, now seen corresponding path program 1 times [2024-11-08 19:18:21,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:21,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844522955] [2024-11-08 19:18:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:21,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844522955] [2024-11-08 19:18:22,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844522955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:22,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:22,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:18:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206067096] [2024-11-08 19:18:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:22,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:18:22,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:22,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:18:22,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:18:22,549 INFO L87 Difference]: Start difference. First operand 355 states and 509 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:23,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:23,228 INFO L93 Difference]: Finished difference Result 991 states and 1416 transitions. [2024-11-08 19:18:23,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:18:23,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-08 19:18:23,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:23,236 INFO L225 Difference]: With dead ends: 991 [2024-11-08 19:18:23,236 INFO L226 Difference]: Without dead ends: 639 [2024-11-08 19:18:23,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:18:23,238 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 96 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:23,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1016 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:18:23,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-08 19:18:23,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 355. [2024-11-08 19:18:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 310 states have (on average 1.3838709677419354) internal successors, (429), 312 states have internal predecessors, (429), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 19:18:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 509 transitions. [2024-11-08 19:18:23,315 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 509 transitions. Word has length 105 [2024-11-08 19:18:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:23,316 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 509 transitions. [2024-11-08 19:18:23,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:23,316 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 509 transitions. [2024-11-08 19:18:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 19:18:23,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:23,318 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:23,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:18:23,319 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:23,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:23,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1986810826, now seen corresponding path program 1 times [2024-11-08 19:18:23,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:23,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051153916] [2024-11-08 19:18:23,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:23,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:23,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:23,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051153916] [2024-11-08 19:18:23,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051153916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:23,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:23,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:23,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935887682] [2024-11-08 19:18:23,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:23,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:23,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:23,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:23,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:23,693 INFO L87 Difference]: Start difference. First operand 355 states and 509 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:23,958 INFO L93 Difference]: Finished difference Result 1017 states and 1453 transitions. [2024-11-08 19:18:23,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:23,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-08 19:18:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:23,965 INFO L225 Difference]: With dead ends: 1017 [2024-11-08 19:18:23,965 INFO L226 Difference]: Without dead ends: 665 [2024-11-08 19:18:23,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:18:23,969 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 88 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:23,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 687 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:23,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-08 19:18:24,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 659. [2024-11-08 19:18:24,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 590 states have (on average 1.3864406779661016) internal successors, (818), 596 states have internal predecessors, (818), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 19:18:24,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 938 transitions. [2024-11-08 19:18:24,046 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 938 transitions. Word has length 106 [2024-11-08 19:18:24,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:24,047 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 938 transitions. [2024-11-08 19:18:24,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:24,047 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 938 transitions. [2024-11-08 19:18:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 19:18:24,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:24,049 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:24,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:18:24,050 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:24,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:24,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1537462538, now seen corresponding path program 1 times [2024-11-08 19:18:24,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:24,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23808492] [2024-11-08 19:18:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:24,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:24,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:24,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23808492] [2024-11-08 19:18:24,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23808492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:24,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:24,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:18:24,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505282740] [2024-11-08 19:18:24,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:24,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:18:24,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:24,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:18:24,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:18:24,473 INFO L87 Difference]: Start difference. First operand 659 states and 938 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:25,154 INFO L93 Difference]: Finished difference Result 2082 states and 2949 transitions. [2024-11-08 19:18:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:18:25,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-08 19:18:25,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:25,161 INFO L225 Difference]: With dead ends: 2082 [2024-11-08 19:18:25,161 INFO L226 Difference]: Without dead ends: 1426 [2024-11-08 19:18:25,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:18:25,163 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 643 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:25,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 630 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:18:25,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-11-08 19:18:25,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 816. [2024-11-08 19:18:25,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 747 states have (on average 1.4082998661311914) internal successors, (1052), 753 states have internal predecessors, (1052), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 19:18:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1172 transitions. [2024-11-08 19:18:25,236 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1172 transitions. Word has length 106 [2024-11-08 19:18:25,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:25,236 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1172 transitions. [2024-11-08 19:18:25,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1172 transitions. [2024-11-08 19:18:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 19:18:25,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:25,239 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:25,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:18:25,240 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:25,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:25,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2124268552, now seen corresponding path program 1 times [2024-11-08 19:18:25,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:25,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690227859] [2024-11-08 19:18:25,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:25,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:25,489 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:25,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:25,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690227859] [2024-11-08 19:18:25,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690227859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:25,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:25,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:25,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197234478] [2024-11-08 19:18:25,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:25,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:25,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:25,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:25,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:25,491 INFO L87 Difference]: Start difference. First operand 816 states and 1172 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:25,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:25,733 INFO L93 Difference]: Finished difference Result 2184 states and 3128 transitions. [2024-11-08 19:18:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:25,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-08 19:18:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:25,742 INFO L225 Difference]: With dead ends: 2184 [2024-11-08 19:18:25,742 INFO L226 Difference]: Without dead ends: 1371 [2024-11-08 19:18:25,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:25,746 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 120 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:25,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 508 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:25,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-08 19:18:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 744. [2024-11-08 19:18:25,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 675 states have (on average 1.3718518518518519) internal successors, (926), 681 states have internal predecessors, (926), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 19:18:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1046 transitions. [2024-11-08 19:18:25,861 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1046 transitions. Word has length 106 [2024-11-08 19:18:25,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:25,862 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1046 transitions. [2024-11-08 19:18:25,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:25,862 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1046 transitions. [2024-11-08 19:18:25,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 19:18:25,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:25,865 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:25,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:18:25,866 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:25,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:25,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1066501438, now seen corresponding path program 1 times [2024-11-08 19:18:25,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:25,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250152209] [2024-11-08 19:18:25,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:25,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:26,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:26,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250152209] [2024-11-08 19:18:26,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250152209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:26,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:26,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:18:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806521238] [2024-11-08 19:18:26,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:26,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:18:26,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:26,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:18:26,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:18:26,228 INFO L87 Difference]: Start difference. First operand 744 states and 1046 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:26,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:26,848 INFO L93 Difference]: Finished difference Result 1933 states and 2697 transitions. [2024-11-08 19:18:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:18:26,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-08 19:18:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:26,854 INFO L225 Difference]: With dead ends: 1933 [2024-11-08 19:18:26,855 INFO L226 Difference]: Without dead ends: 1192 [2024-11-08 19:18:26,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:18:26,858 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 489 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:26,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 647 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:18:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2024-11-08 19:18:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 766. [2024-11-08 19:18:26,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 697 states have (on average 1.3715925394548063) internal successors, (956), 703 states have internal predecessors, (956), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 19:18:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1076 transitions. [2024-11-08 19:18:26,928 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1076 transitions. Word has length 106 [2024-11-08 19:18:26,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:26,929 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 1076 transitions. [2024-11-08 19:18:26,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1076 transitions. [2024-11-08 19:18:26,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 19:18:26,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:26,932 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:26,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:18:26,933 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:26,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:26,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2087569792, now seen corresponding path program 1 times [2024-11-08 19:18:26,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:26,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713903178] [2024-11-08 19:18:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:26,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:27,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:27,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713903178] [2024-11-08 19:18:27,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713903178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:27,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:27,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:18:27,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908514716] [2024-11-08 19:18:27,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:27,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:18:27,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:27,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:18:27,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:18:27,187 INFO L87 Difference]: Start difference. First operand 766 states and 1076 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:27,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:27,273 INFO L93 Difference]: Finished difference Result 1429 states and 2017 transitions. [2024-11-08 19:18:27,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:18:27,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-08 19:18:27,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:27,278 INFO L225 Difference]: With dead ends: 1429 [2024-11-08 19:18:27,278 INFO L226 Difference]: Without dead ends: 666 [2024-11-08 19:18:27,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 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 19:18:27,281 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:27,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 347 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:27,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-08 19:18:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 642. [2024-11-08 19:18:27,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 573 states have (on average 1.3542757417102966) internal successors, (776), 579 states have internal predecessors, (776), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 19:18:27,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 896 transitions. [2024-11-08 19:18:27,350 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 896 transitions. Word has length 106 [2024-11-08 19:18:27,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:27,351 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 896 transitions. [2024-11-08 19:18:27,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:27,351 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 896 transitions. [2024-11-08 19:18:27,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 19:18:27,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:27,353 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:27,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:18:27,354 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:27,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:27,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1553222338, now seen corresponding path program 1 times [2024-11-08 19:18:27,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:27,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745726417] [2024-11-08 19:18:27,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:27,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:18:27,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:27,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745726417] [2024-11-08 19:18:27,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745726417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138773253] [2024-11-08 19:18:27,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:27,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:27,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:27,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:27,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:18:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:28,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:18:28,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:28,240 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 7 treesize of output 3 [2024-11-08 19:18:28,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2024-11-08 19:18:28,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:18:28,613 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 32 treesize of output 12 [2024-11-08 19:18:28,634 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-08 19:18:28,634 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:18:28,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138773253] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:18:28,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:18:28,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 13 [2024-11-08 19:18:28,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866252308] [2024-11-08 19:18:28,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:28,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:18:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:28,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:18:28,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:18:28,977 INFO L87 Difference]: Start difference. First operand 642 states and 896 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:18:29,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:29,421 INFO L93 Difference]: Finished difference Result 1037 states and 1437 transitions. [2024-11-08 19:18:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:18:29,422 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 107 [2024-11-08 19:18:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:29,424 INFO L225 Difference]: With dead ends: 1037 [2024-11-08 19:18:29,424 INFO L226 Difference]: Without dead ends: 398 [2024-11-08 19:18:29,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:18:29,427 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 164 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:29,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 623 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:29,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-08 19:18:29,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 365. [2024-11-08 19:18:29,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 322 states have (on average 1.3012422360248448) internal successors, (419), 324 states have internal predecessors, (419), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:29,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 483 transitions. [2024-11-08 19:18:29,500 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 483 transitions. Word has length 107 [2024-11-08 19:18:29,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:29,500 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 483 transitions. [2024-11-08 19:18:29,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:18:29,501 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 483 transitions. [2024-11-08 19:18:29,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:18:29,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:29,503 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:29,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:18:29,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 19:18:29,707 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:29,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:29,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1799263148, now seen corresponding path program 1 times [2024-11-08 19:18:29,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:29,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700899336] [2024-11-08 19:18:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:29,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:29,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1959112965] [2024-11-08 19:18:29,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:29,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:29,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:29,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:29,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:18:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:30,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 19:18:30,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:30,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:18:30,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:18:30,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:18:30,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 24 [2024-11-08 19:18:30,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:18:30,357 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 34 treesize of output 14 [2024-11-08 19:18:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:30,423 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:30,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:30,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700899336] [2024-11-08 19:18:30,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:30,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959112965] [2024-11-08 19:18:30,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959112965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:30,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:30,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:18:30,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224894979] [2024-11-08 19:18:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:30,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:18:30,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:30,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:18:30,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:18:30,427 INFO L87 Difference]: Start difference. First operand 365 states and 483 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:30,969 INFO L93 Difference]: Finished difference Result 903 states and 1199 transitions. [2024-11-08 19:18:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:18:30,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-08 19:18:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:30,975 INFO L225 Difference]: With dead ends: 903 [2024-11-08 19:18:30,975 INFO L226 Difference]: Without dead ends: 541 [2024-11-08 19:18:30,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:18:30,977 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 45 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:30,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 750 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:18:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-08 19:18:31,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 445. [2024-11-08 19:18:31,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 402 states have (on average 1.2960199004975124) internal successors, (521), 404 states have internal predecessors, (521), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:31,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 585 transitions. [2024-11-08 19:18:31,040 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 585 transitions. Word has length 110 [2024-11-08 19:18:31,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:31,041 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 585 transitions. [2024-11-08 19:18:31,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 585 transitions. [2024-11-08 19:18:31,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:18:31,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:31,044 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:31,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:18:31,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 19:18:31,248 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:31,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:31,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1908898134, now seen corresponding path program 1 times [2024-11-08 19:18:31,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:31,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788190537] [2024-11-08 19:18:31,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:31,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:31,881 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:31,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:31,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788190537] [2024-11-08 19:18:31,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788190537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:31,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:31,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:18:31,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526827307] [2024-11-08 19:18:31,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:31,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:18:31,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:31,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:18:31,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:31,887 INFO L87 Difference]: Start difference. First operand 445 states and 585 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:32,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:32,193 INFO L93 Difference]: Finished difference Result 1002 states and 1315 transitions. [2024-11-08 19:18:32,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:18:32,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-08 19:18:32,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:32,198 INFO L225 Difference]: With dead ends: 1002 [2024-11-08 19:18:32,198 INFO L226 Difference]: Without dead ends: 560 [2024-11-08 19:18:32,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 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 19:18:32,200 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 39 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:32,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 460 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:32,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-08 19:18:32,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 486. [2024-11-08 19:18:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 443 states have (on average 1.2686230248306998) internal successors, (562), 445 states have internal predecessors, (562), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:32,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 626 transitions. [2024-11-08 19:18:32,265 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 626 transitions. Word has length 110 [2024-11-08 19:18:32,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:32,266 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 626 transitions. [2024-11-08 19:18:32,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:32,267 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 626 transitions. [2024-11-08 19:18:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:18:32,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:32,269 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:32,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:18:32,269 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:32,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:32,270 INFO L85 PathProgramCache]: Analyzing trace with hash -413059754, now seen corresponding path program 1 times [2024-11-08 19:18:32,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:32,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670500610] [2024-11-08 19:18:32,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:32,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:32,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:32,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670500610] [2024-11-08 19:18:32,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670500610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:32,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:32,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:32,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708126221] [2024-11-08 19:18:32,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:32,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:32,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:32,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:32,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:32,805 INFO L87 Difference]: Start difference. First operand 486 states and 626 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:33,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:33,089 INFO L93 Difference]: Finished difference Result 1043 states and 1346 transitions. [2024-11-08 19:18:33,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:33,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-08 19:18:33,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:33,094 INFO L225 Difference]: With dead ends: 1043 [2024-11-08 19:18:33,094 INFO L226 Difference]: Without dead ends: 560 [2024-11-08 19:18:33,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:33,098 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 37 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:33,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 449 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:33,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-08 19:18:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 486. [2024-11-08 19:18:33,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 443 states have (on average 1.2595936794582392) internal successors, (558), 445 states have internal predecessors, (558), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 622 transitions. [2024-11-08 19:18:33,162 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 622 transitions. Word has length 110 [2024-11-08 19:18:33,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:33,163 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 622 transitions. [2024-11-08 19:18:33,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:33,163 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 622 transitions. [2024-11-08 19:18:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:18:33,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:33,166 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:33,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:18:33,166 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:33,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:33,167 INFO L85 PathProgramCache]: Analyzing trace with hash -999865768, now seen corresponding path program 1 times [2024-11-08 19:18:33,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:33,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817915947] [2024-11-08 19:18:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:33,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:33,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132647521] [2024-11-08 19:18:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:33,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:33,245 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:33,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:18:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:33,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:18:33,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:33,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:18:33,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:18:33,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-08 19:18:33,870 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 25 treesize of output 13 [2024-11-08 19:18:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:33,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:33,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:33,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817915947] [2024-11-08 19:18:33,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:33,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132647521] [2024-11-08 19:18:33,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132647521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:33,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:33,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:18:33,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308938213] [2024-11-08 19:18:33,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:33,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:18:33,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:33,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:18:33,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:18:33,982 INFO L87 Difference]: Start difference. First operand 486 states and 622 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:34,597 INFO L93 Difference]: Finished difference Result 1123 states and 1440 transitions. [2024-11-08 19:18:34,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:18:34,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-08 19:18:34,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:34,606 INFO L225 Difference]: With dead ends: 1123 [2024-11-08 19:18:34,606 INFO L226 Difference]: Without dead ends: 640 [2024-11-08 19:18:34,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:18:34,608 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 40 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:34,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 820 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:18:34,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-11-08 19:18:34,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 543. [2024-11-08 19:18:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 500 states have (on average 1.252) internal successors, (626), 502 states have internal predecessors, (626), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:34,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 690 transitions. [2024-11-08 19:18:34,674 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 690 transitions. Word has length 110 [2024-11-08 19:18:34,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:34,675 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 690 transitions. [2024-11-08 19:18:34,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:34,675 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 690 transitions. [2024-11-08 19:18:34,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:18:34,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:34,678 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:34,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 19:18:34,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 19:18:34,879 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:34,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:34,880 INFO L85 PathProgramCache]: Analyzing trace with hash 881871280, now seen corresponding path program 1 times [2024-11-08 19:18:34,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:34,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285007981] [2024-11-08 19:18:34,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:34,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:36,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:36,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285007981] [2024-11-08 19:18:36,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285007981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:36,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:36,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:18:36,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858540917] [2024-11-08 19:18:36,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:36,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:18:36,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:36,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:18:36,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:18:36,094 INFO L87 Difference]: Start difference. First operand 543 states and 690 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:36,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:36,282 INFO L93 Difference]: Finished difference Result 557 states and 707 transitions. [2024-11-08 19:18:36,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:18:36,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-08 19:18:36,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:36,286 INFO L225 Difference]: With dead ends: 557 [2024-11-08 19:18:36,287 INFO L226 Difference]: Without dead ends: 555 [2024-11-08 19:18:36,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:18:36,288 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 26 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:36,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 694 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:36,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-08 19:18:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-08 19:18:36,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 512 states have (on average 1.24609375) internal successors, (638), 514 states have internal predecessors, (638), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 702 transitions. [2024-11-08 19:18:36,352 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 702 transitions. Word has length 111 [2024-11-08 19:18:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:36,353 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 702 transitions. [2024-11-08 19:18:36,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:36,354 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 702 transitions. [2024-11-08 19:18:36,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:18:36,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:36,356 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:36,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:18:36,356 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:36,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:36,357 INFO L85 PathProgramCache]: Analyzing trace with hash 883718322, now seen corresponding path program 1 times [2024-11-08 19:18:36,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658989107] [2024-11-08 19:18:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:36,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:36,813 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:36,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:36,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658989107] [2024-11-08 19:18:36,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658989107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:36,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:36,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:36,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013268578] [2024-11-08 19:18:36,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:36,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:36,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:36,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:36,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:36,817 INFO L87 Difference]: Start difference. First operand 555 states and 702 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:36,911 INFO L93 Difference]: Finished difference Result 1119 states and 1417 transitions. [2024-11-08 19:18:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:36,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-08 19:18:36,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:36,916 INFO L225 Difference]: With dead ends: 1119 [2024-11-08 19:18:36,916 INFO L226 Difference]: Without dead ends: 567 [2024-11-08 19:18:36,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:36,918 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 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 19:18:36,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:36,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-08 19:18:36,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2024-11-08 19:18:36,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 524 states have (on average 1.2404580152671756) internal successors, (650), 526 states have internal predecessors, (650), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 714 transitions. [2024-11-08 19:18:36,976 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 714 transitions. Word has length 111 [2024-11-08 19:18:36,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:36,977 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 714 transitions. [2024-11-08 19:18:36,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:36,977 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 714 transitions. [2024-11-08 19:18:36,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:18:36,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:36,980 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:36,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:18:36,981 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:36,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:36,981 INFO L85 PathProgramCache]: Analyzing trace with hash -340240955, now seen corresponding path program 1 times [2024-11-08 19:18:36,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:36,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22584927] [2024-11-08 19:18:36,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:36,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:37,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710785276] [2024-11-08 19:18:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:37,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:37,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:37,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:18:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:37,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 19:18:37,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:37,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:18:37,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:18:37,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:18:37,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-08 19:18:37,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:18:37,661 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 36 treesize of output 16 [2024-11-08 19:18:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:37,726 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:37,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:37,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22584927] [2024-11-08 19:18:37,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:37,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710785276] [2024-11-08 19:18:37,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710785276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:37,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:37,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:18:37,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765953336] [2024-11-08 19:18:37,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:37,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:18:37,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:37,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:18:37,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:18:37,733 INFO L87 Difference]: Start difference. First operand 567 states and 714 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:38,315 INFO L93 Difference]: Finished difference Result 1222 states and 1536 transitions. [2024-11-08 19:18:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:18:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-08 19:18:38,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:38,319 INFO L225 Difference]: With dead ends: 1222 [2024-11-08 19:18:38,320 INFO L226 Difference]: Without dead ends: 658 [2024-11-08 19:18:38,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:18:38,322 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 41 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:38,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 685 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:18:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-08 19:18:38,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 598. [2024-11-08 19:18:38,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 555 states have (on average 1.236036036036036) internal successors, (686), 557 states have internal predecessors, (686), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:38,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 750 transitions. [2024-11-08 19:18:38,382 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 750 transitions. Word has length 111 [2024-11-08 19:18:38,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:38,383 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 750 transitions. [2024-11-08 19:18:38,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:38,384 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 750 transitions. [2024-11-08 19:18:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:18:38,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:38,386 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:38,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:18:38,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:38,590 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:38,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash 560303729, now seen corresponding path program 1 times [2024-11-08 19:18:38,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:38,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702404407] [2024-11-08 19:18:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:38,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:38,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:38,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702404407] [2024-11-08 19:18:38,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702404407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:38,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:38,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:38,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145407764] [2024-11-08 19:18:38,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:38,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:38,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:38,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:38,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:38,990 INFO L87 Difference]: Start difference. First operand 598 states and 750 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:39,243 INFO L93 Difference]: Finished difference Result 1328 states and 1662 transitions. [2024-11-08 19:18:39,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:39,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-08 19:18:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:39,248 INFO L225 Difference]: With dead ends: 1328 [2024-11-08 19:18:39,248 INFO L226 Difference]: Without dead ends: 733 [2024-11-08 19:18:39,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:39,251 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 34 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:39,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 369 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:39,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-08 19:18:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 600. [2024-11-08 19:18:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 557 states have (on average 1.2226211849192101) internal successors, (681), 559 states have internal predecessors, (681), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 745 transitions. [2024-11-08 19:18:39,315 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 745 transitions. Word has length 111 [2024-11-08 19:18:39,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:39,316 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 745 transitions. [2024-11-08 19:18:39,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:39,316 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 745 transitions. [2024-11-08 19:18:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:18:39,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:39,319 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:39,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 19:18:39,321 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:39,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:39,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1483452363, now seen corresponding path program 1 times [2024-11-08 19:18:39,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:39,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771539831] [2024-11-08 19:18:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:39,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:18:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:18:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 19:18:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 19:18:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:18:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:18:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 19:18:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 19:18:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 19:18:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 19:18:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:39,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:39,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771539831] [2024-11-08 19:18:39,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771539831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:39,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:39,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:39,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319704418] [2024-11-08 19:18:39,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:39,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:39,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:39,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:39,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:39,667 INFO L87 Difference]: Start difference. First operand 600 states and 745 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:39,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:39,933 INFO L93 Difference]: Finished difference Result 1303 states and 1618 transitions. [2024-11-08 19:18:39,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:39,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-08 19:18:39,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:39,937 INFO L225 Difference]: With dead ends: 1303 [2024-11-08 19:18:39,937 INFO L226 Difference]: Without dead ends: 706 [2024-11-08 19:18:39,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:18:39,940 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:39,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 467 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:18:39,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-08 19:18:39,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 600. [2024-11-08 19:18:39,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 557 states have (on average 1.2118491921005385) internal successors, (675), 559 states have internal predecessors, (675), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:40,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 739 transitions. [2024-11-08 19:18:40,002 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 739 transitions. Word has length 111 [2024-11-08 19:18:40,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:40,002 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 739 transitions. [2024-11-08 19:18:40,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:40,002 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 739 transitions. [2024-11-08 19:18:40,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:18:40,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:40,004 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:40,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 19:18:40,005 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:40,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:40,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1597472379, now seen corresponding path program 1 times [2024-11-08 19:18:40,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:40,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093263629] [2024-11-08 19:18:40,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:40,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:40,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675332061] [2024-11-08 19:18:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:40,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:40,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:40,061 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:40,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:18:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:40,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:18:40,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:40,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:18:40,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:18:40,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-11-08 19:18:40,604 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 19:18:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:40,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:40,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:40,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093263629] [2024-11-08 19:18:40,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:40,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675332061] [2024-11-08 19:18:40,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675332061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:40,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:40,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:18:40,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505418479] [2024-11-08 19:18:40,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:40,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:18:40,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:40,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:18:40,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:18:40,681 INFO L87 Difference]: Start difference. First operand 600 states and 739 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:41,149 INFO L93 Difference]: Finished difference Result 1241 states and 1528 transitions. [2024-11-08 19:18:41,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:18:41,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-08 19:18:41,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:41,154 INFO L225 Difference]: With dead ends: 1241 [2024-11-08 19:18:41,154 INFO L226 Difference]: Without dead ends: 644 [2024-11-08 19:18:41,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:18:41,160 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 27 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:41,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 811 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:18:41,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-08 19:18:41,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 596. [2024-11-08 19:18:41,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 553 states have (on average 1.213381555153707) internal successors, (671), 555 states have internal predecessors, (671), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 19:18:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 735 transitions. [2024-11-08 19:18:41,216 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 735 transitions. Word has length 111 [2024-11-08 19:18:41,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:41,217 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 735 transitions. [2024-11-08 19:18:41,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:41,218 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 735 transitions. [2024-11-08 19:18:41,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:18:41,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:41,220 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:41,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 19:18:41,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-08 19:18:41,421 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:41,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash -135065541, now seen corresponding path program 1 times [2024-11-08 19:18:41,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:41,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107989913] [2024-11-08 19:18:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:41,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:41,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255836630] [2024-11-08 19:18:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:41,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:41,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:41,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:41,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 19:18:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:18:41,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:18:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:18:42,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:18:42,232 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:18:42,233 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 19:18:42,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 19:18:42,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-08 19:18:42,439 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] [2024-11-08 19:18:42,589 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:18:42,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:18:42 BoogieIcfgContainer [2024-11-08 19:18:42,593 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:18:42,593 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:18:42,593 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:18:42,594 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:18:42,594 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:14" (3/4) ... [2024-11-08 19:18:42,597 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:18:42,598 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:18:42,601 INFO L158 Benchmark]: Toolchain (without parser) took 29920.97ms. Allocated memory was 127.9MB in the beginning and 436.2MB in the end (delta: 308.3MB). Free memory was 97.8MB in the beginning and 199.8MB in the end (delta: -102.0MB). Peak memory consumption was 209.3MB. Max. memory is 16.1GB. [2024-11-08 19:18:42,602 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:18:42,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.54ms. Allocated memory is still 127.9MB. Free memory was 97.8MB in the beginning and 81.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:18:42,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.13ms. Allocated memory is still 127.9MB. Free memory was 81.5MB in the beginning and 78.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:18:42,602 INFO L158 Benchmark]: Boogie Preprocessor took 83.80ms. Allocated memory is still 127.9MB. Free memory was 78.3MB in the beginning and 73.5MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:18:42,603 INFO L158 Benchmark]: RCFGBuilder took 1135.61ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 73.5MB in the beginning and 128.2MB in the end (delta: -54.8MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2024-11-08 19:18:42,603 INFO L158 Benchmark]: TraceAbstraction took 28102.80ms. Allocated memory was 174.1MB in the beginning and 436.2MB in the end (delta: 262.1MB). Free memory was 127.1MB in the beginning and 199.8MB in the end (delta: -72.8MB). Peak memory consumption was 189.1MB. Max. memory is 16.1GB. [2024-11-08 19:18:42,604 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 436.2MB. Free memory is still 199.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:18:42,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.54ms. Allocated memory is still 127.9MB. Free memory was 97.8MB in the beginning and 81.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.13ms. Allocated memory is still 127.9MB. Free memory was 81.5MB in the beginning and 78.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.80ms. Allocated memory is still 127.9MB. Free memory was 78.3MB in the beginning and 73.5MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1135.61ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 73.5MB in the beginning and 128.2MB in the end (delta: -54.8MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 28102.80ms. Allocated memory was 174.1MB in the beginning and 436.2MB in the end (delta: 262.1MB). Free memory was 127.1MB in the beginning and 199.8MB in the end (delta: -72.8MB). Peak memory consumption was 189.1MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 436.2MB. Free memory is still 199.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryFLOATComparisonOperation at line 80. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L28-L30] float float_Array_0[1] = { 15.5 }; [L28-L30] float float_Array_0[1] = { 15.5 }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L34-L36] signed long int signed_long_int_Array_0[1] = { -64 }; [L34-L36] signed long int signed_long_int_Array_0[1] = { -64 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[1] = { 32 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[1] = { 32 }; [L40] unsigned short int last_1_unsigned_short_int_Array_0_0_ = 32; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=0, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] CALL updateLastVariables() [L92] EXPR unsigned_short_int_Array_0[0] [L92] last_1_unsigned_short_int_Array_0_0_ = unsigned_short_int_Array_0[0] [L102] RET updateLastVariables() [L103] CALL updateVariables() [L72] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] double_Array_0[0] = __VERIFIER_nondet_double() [L76] EXPR double_Array_0[0] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F [L76] EXPR double_Array_0[0] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] CALL assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] RET assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] double_Array_0[1] = __VERIFIER_nondet_double() [L78] EXPR double_Array_0[1] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F [L78] EXPR double_Array_0[1] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR (double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR (double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] CALL assume_abort_if_not((double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] RET assume_abort_if_not((double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] float_Array_0[0] = __VERIFIER_nondet_float() [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] signed_char_Array_0[0][0] = __VERIFIER_nondet_char() [L82] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] CALL assume_abort_if_not(signed_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] RET assume_abort_if_not(signed_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] RET assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] signed_char_Array_0[1][0] = __VERIFIER_nondet_char() [L85] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] CALL assume_abort_if_not(signed_char_Array_0[1][0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] RET assume_abort_if_not(signed_char_Array_0[1][0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L87] signed_char_Array_0[0][1] = __VERIFIER_nondet_char() [L88] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] CALL assume_abort_if_not(signed_char_Array_0[0][1] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] RET assume_abort_if_not(signed_char_Array_0[0][1] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] CALL assume_abort_if_not(signed_char_Array_0[0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] RET assume_abort_if_not(signed_char_Array_0[0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L103] RET updateVariables() [L104] CALL step() [L44] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L44] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) [L44] EXPR signed_char_Array_0[0][0] [L44] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L44] signed long int stepLocal_0 = (((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_)); [L45] EXPR signed_char_Array_0[1][0] [L45] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L45] EXPR last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, stepLocal_0=126, unsigned_short_int_Array_0={9:0}] [L45] COND TRUE stepLocal_0 <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1])) [L46] EXPR double_Array_0[1] [L46] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L46] COND FALSE !((- double_Array_0[1]) >= double_Array_0[0]) [L49] EXPR signed_char_Array_0[0][0] [L49] signed_long_int_Array_0[0] = signed_char_Array_0[0][0] [L54] EXPR signed_char_Array_0[0][0] [L54] EXPR signed_long_int_Array_0[0] [L54] signed long int stepLocal_1 = signed_char_Array_0[0][0] + signed_long_int_Array_0[0]; [L55] EXPR float_Array_0[0] [L55] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L55] COND FALSE !(float_Array_0[0] < double_Array_0[0]) [L62] EXPR BOOL_unsigned_char_Array_0[1] [L62] BOOL_unsigned_char_Array_0[0] = BOOL_unsigned_char_Array_0[1] [L63] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L63] COND TRUE ! BOOL_unsigned_char_Array_0[0] [L64] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L64] COND TRUE ! BOOL_unsigned_char_Array_0[0] [L65] EXPR signed_char_Array_0[0][1] [L65] signed_char_Array_0[1][1] = (signed_char_Array_0[0][1] + -32) [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1 [L95] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16)))))) [L95] EXPR signed_char_Array_0[1][1] [L95] EXPR signed_char_Array_0[0][1] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16)))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) [L95] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) [L95] EXPR signed_char_Array_0[0][0] [L95] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR signed_char_Array_0[1][0] [L95] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) [L95] EXPR double_Array_0[1] [L95] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) [L95] EXPR signed_long_int_Array_0[0] [L95] EXPR signed_char_Array_0[1][0] [L95] EXPR ((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95-L96] return ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.9s, OverallIterations: 23, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2812 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2808 mSDsluCounter, 13657 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10726 mSDsCounter, 280 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3787 IncrementalHoareTripleChecker+Invalid, 4067 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 280 mSolverCounterUnsat, 2931 mSDtfsCounter, 3787 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1250 GetRequests, 1081 SyntacticMatches, 2 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=816occurred in iteration=8, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 2974 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 3133 NumberOfCodeBlocks, 3133 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2550 ConstructedInterpolants, 0 QuantifiedInterpolants, 7496 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2057 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 24 InterpolantComputations, 21 PerfectInterpolantSequences, 5199/5280 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 19:18:42,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/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_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/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_385123ae-a12f-4edf-94c8-aaeb0c333e24/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 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:18:45,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:18:45,706 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 19:18:45,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:18:45,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:18:45,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:18:45,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:18:45,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:18:45,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:18:45,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:18:45,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:18:45,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:18:45,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:18:45,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:18:45,775 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:18:45,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:18:45,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:18:45,776 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:18:45,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:18:45,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:18:45,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:18:45,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:18:45,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:18:45,782 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:18:45,782 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:18:45,783 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:18:45,783 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:18:45,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:18:45,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:18:45,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:18:45,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:18:45,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:18:45,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:18:45,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:18:45,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:18:45,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:18:45,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:18:45,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:18:45,789 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 19:18:45,789 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:18:45,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:18:45,790 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:18:45,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:18:45,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:18:45,802 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_385123ae-a12f-4edf-94c8-aaeb0c333e24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 [2024-11-08 19:18:46,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:18:46,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:18:46,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:18:46,317 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:18:46,317 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:18:46,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i Unable to find full path for "g++" [2024-11-08 19:18:48,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:18:49,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:18:49,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-11-08 19:18:49,030 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/data/cca267de7/f19569af6fd54ca4b5f6acd31861a3b8/FLAG447d49e6f [2024-11-08 19:18:49,282 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/data/cca267de7/f19569af6fd54ca4b5f6acd31861a3b8 [2024-11-08 19:18:49,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:18:49,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:18:49,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:18:49,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:18:49,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:18:49,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:49,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31010bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49, skipping insertion in model container [2024-11-08 19:18:49,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:49,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:18:49,618 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_385123ae-a12f-4edf-94c8-aaeb0c333e24/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-11-08 19:18:49,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:18:49,750 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:18:49,767 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_385123ae-a12f-4edf-94c8-aaeb0c333e24/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-11-08 19:18:49,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:18:49,942 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:18:49,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49 WrapperNode [2024-11-08 19:18:49,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:18:49,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:18:49,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:18:49,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:18:49,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:49,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,044 INFO L138 Inliner]: procedures = 39, calls = 131, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 395 [2024-11-08 19:18:50,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:18:50,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:18:50,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:18:50,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:18:50,061 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,115 INFO L175 MemorySlicer]: Split 103 memory accesses to 7 slices as follows [2, 13, 18, 8, 45, 11, 6]. 44 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 2, 2, 1, 4, 1, 1]. The 15 writes are split as follows [0, 2, 2, 1, 5, 3, 2]. [2024-11-08 19:18:50,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:18:50,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:18:50,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:18:50,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:18:50,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (1/1) ... [2024-11-08 19:18:50,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:18:50,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:50,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:18:50,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:18:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:18:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-08 19:18:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-08 19:18:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-08 19:18:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-08 19:18:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-08 19:18:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-08 19:18:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-11-08 19:18:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-08 19:18:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-08 19:18:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-08 19:18:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-08 19:18:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-08 19:18:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-08 19:18:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-11-08 19:18:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 19:18:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 19:18:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 19:18:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 19:18:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-08 19:18:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-08 19:18:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-08 19:18:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-08 19:18:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-08 19:18:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-08 19:18:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-08 19:18:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-08 19:18:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-08 19:18:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-11-08 19:18:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 19:18:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 19:18:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 19:18:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 19:18:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 19:18:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 19:18:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-08 19:18:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 19:18:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 19:18:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 19:18:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 19:18:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 19:18:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-08 19:18:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-08 19:18:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 19:18:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 19:18:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 19:18:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 19:18:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 19:18:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-08 19:18:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-08 19:18:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-08 19:18:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-08 19:18:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-08 19:18:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-08 19:18:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-08 19:18:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-08 19:18:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-11-08 19:18:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 19:18:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 19:18:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 19:18:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 19:18:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 19:18:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-08 19:18:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-08 19:18:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-08 19:18:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-08 19:18:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-08 19:18:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-08 19:18:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-08 19:18:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-08 19:18:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-08 19:18:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 19:18:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 19:18:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 19:18:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 19:18:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 19:18:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-08 19:18:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-08 19:18:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 19:18:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 19:18:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 19:18:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 19:18:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-08 19:18:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-08 19:18:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-08 19:18:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:18:50,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:18:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:18:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:18:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 19:18:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 19:18:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 19:18:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 19:18:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-08 19:18:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-08 19:18:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-08 19:18:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-08 19:18:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-08 19:18:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-08 19:18:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-08 19:18:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-08 19:18:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-08 19:18:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-08 19:18:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 19:18:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 19:18:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 19:18:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 19:18:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 19:18:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-08 19:18:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-08 19:18:50,589 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:18:50,592 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:18:51,672 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-08 19:18:51,672 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:18:51,690 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:18:51,690 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:18:51,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:51 BoogieIcfgContainer [2024-11-08 19:18:51,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:18:51,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:18:51,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:18:51,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:18:51,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:18:49" (1/3) ... [2024-11-08 19:18:51,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d364f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:51, skipping insertion in model container [2024-11-08 19:18:51,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:49" (2/3) ... [2024-11-08 19:18:51,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d364f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:51, skipping insertion in model container [2024-11-08 19:18:51,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:51" (3/3) ... [2024-11-08 19:18:51,727 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-79.i [2024-11-08 19:18:51,745 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:18:51,745 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:18:51,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:18:51,816 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;@4ccddc6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:18:51,816 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:18:51,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:51,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 19:18:51,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:51,833 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:51,833 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:51,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:51,838 INFO L85 PathProgramCache]: Analyzing trace with hash -579281556, now seen corresponding path program 1 times [2024-11-08 19:18:51,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:51,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621853710] [2024-11-08 19:18:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:51,854 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 19:18:51,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:51,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:51,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:52,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 19:18:52,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-08 19:18:52,306 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:52,307 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:52,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621853710] [2024-11-08 19:18:52,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621853710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:52,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:52,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:18:52,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033847741] [2024-11-08 19:18:52,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:52,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:18:52,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:52,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:18:52,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:18:52,348 INFO L87 Difference]: Start difference. First operand has 91 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:52,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:52,379 INFO L93 Difference]: Finished difference Result 175 states and 269 transitions. [2024-11-08 19:18:52,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:18:52,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-11-08 19:18:52,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:52,389 INFO L225 Difference]: With dead ends: 175 [2024-11-08 19:18:52,389 INFO L226 Difference]: Without dead ends: 87 [2024-11-08 19:18:52,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 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 19:18:52,398 INFO L432 NwaCegarLoop]: 125 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, 125 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 19:18:52,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:18:52,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-08 19:18:52,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-08 19:18:52,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:52,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 125 transitions. [2024-11-08 19:18:52,454 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 125 transitions. Word has length 100 [2024-11-08 19:18:52,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:52,455 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-11-08 19:18:52,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:18:52,455 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions. [2024-11-08 19:18:52,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 19:18:52,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:52,460 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:52,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:52,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:52,661 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:52,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:52,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1056744162, now seen corresponding path program 1 times [2024-11-08 19:18:52,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:52,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143535789] [2024-11-08 19:18:52,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:52,664 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 19:18:52,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:52,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:52,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:53,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:18:53,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:53,757 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 24 treesize of output 12 [2024-11-08 19:18:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-08 19:18:53,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:18:54,449 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:54,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143535789] [2024-11-08 19:18:54,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143535789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:18:54,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:18:54,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-08 19:18:54,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392999110] [2024-11-08 19:18:54,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:54,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:18:54,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:54,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:18:54,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:18:54,455 INFO L87 Difference]: Start difference. First operand 87 states and 125 transitions. Second operand has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:18:55,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:55,012 INFO L93 Difference]: Finished difference Result 177 states and 252 transitions. [2024-11-08 19:18:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:18:55,013 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 100 [2024-11-08 19:18:55,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:55,016 INFO L225 Difference]: With dead ends: 177 [2024-11-08 19:18:55,016 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 19:18:55,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:18:55,019 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 211 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:55,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 492 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:18:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 19:18:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-08 19:18:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:55,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-11-08 19:18:55,040 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 100 [2024-11-08 19:18:55,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:55,040 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-11-08 19:18:55,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:18:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-11-08 19:18:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 19:18:55,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:55,044 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:55,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-08 19:18:55,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:55,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:55,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:55,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2137202420, now seen corresponding path program 1 times [2024-11-08 19:18:55,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:55,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669769448] [2024-11-08 19:18:55,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:55,248 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 19:18:55,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:55,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:55,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:55,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:18:55,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:56,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-08 19:18:56,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:18:56,297 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 35 treesize of output 15 [2024-11-08 19:18:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-08 19:18:56,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:57,006 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:18:57,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:57,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669769448] [2024-11-08 19:18:57,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669769448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:18:57,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:18:57,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-08 19:18:57,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088698499] [2024-11-08 19:18:57,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:57,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:18:57,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:57,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:18:57,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:18:57,011 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:18:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:57,842 INFO L93 Difference]: Finished difference Result 181 states and 253 transitions. [2024-11-08 19:18:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:18:57,844 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 101 [2024-11-08 19:18:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:57,846 INFO L225 Difference]: With dead ends: 181 [2024-11-08 19:18:57,846 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 19:18:57,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:18:57,849 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 347 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:57,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 533 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:18:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 19:18:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-08 19:18:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2024-11-08 19:18:57,870 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 126 transitions. Word has length 101 [2024-11-08 19:18:57,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:57,871 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 126 transitions. [2024-11-08 19:18:57,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:18:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 126 transitions. [2024-11-08 19:18:57,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 19:18:57,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:57,875 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:57,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-08 19:18:58,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,076 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:58,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash -2103656985, now seen corresponding path program 1 times [2024-11-08 19:18:58,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:58,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553557231] [2024-11-08 19:18:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:58,080 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 19:18:58,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:58,084 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:58,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:18:58,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:18:58,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:18:58,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:18:58,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553557231] [2024-11-08 19:18:58,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553557231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:18:58,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:18:58,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:18:58,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078772552] [2024-11-08 19:18:58,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:58,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:18:58,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:58,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:18:58,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:18:58,561 INFO L87 Difference]: Start difference. First operand 91 states and 126 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:58,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:58,651 INFO L93 Difference]: Finished difference Result 184 states and 256 transitions. [2024-11-08 19:18:58,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:18:58,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-08 19:18:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:58,654 INFO L225 Difference]: With dead ends: 184 [2024-11-08 19:18:58,654 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 19:18:58,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 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 19:18:58,660 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 1 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:58,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 459 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:18:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 19:18:58,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-08 19:18:58,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 81 states have internal predecessors, (108), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:18:58,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 130 transitions. [2024-11-08 19:18:58,694 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 130 transitions. Word has length 103 [2024-11-08 19:18:58,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:58,696 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 130 transitions. [2024-11-08 19:18:58,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:18:58,697 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 130 transitions. [2024-11-08 19:18:58,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 19:18:58,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:58,702 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:58,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-08 19:18:58,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,903 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:18:58,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:58,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2101809943, now seen corresponding path program 1 times [2024-11-08 19:18:58,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:18:58,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823078917] [2024-11-08 19:18:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:58,905 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 19:18:58,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:18:58,909 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:58,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:18:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:59,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 19:18:59,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:59,419 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 14 treesize of output 10 [2024-11-08 19:19:00,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 39 [2024-11-08 19:19:00,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:00,416 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 83 treesize of output 47 [2024-11-08 19:19:00,553 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 19:19:00,553 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:00,553 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:00,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823078917] [2024-11-08 19:19:00,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823078917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:00,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:00,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 19:19:00,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234007972] [2024-11-08 19:19:00,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:00,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 19:19:00,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 19:19:00,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:19:00,558 INFO L87 Difference]: Start difference. First operand 95 states and 130 transitions. Second operand has 15 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 19:19:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:04,922 INFO L93 Difference]: Finished difference Result 277 states and 372 transitions. [2024-11-08 19:19:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 19:19:04,924 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-11-08 19:19:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:04,926 INFO L225 Difference]: With dead ends: 277 [2024-11-08 19:19:04,926 INFO L226 Difference]: Without dead ends: 185 [2024-11-08 19:19:04,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2024-11-08 19:19:04,932 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 342 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:04,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1093 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 19:19:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-08 19:19:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 109. [2024-11-08 19:19:04,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 93 states have internal predecessors, (121), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:19:04,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 143 transitions. [2024-11-08 19:19:04,989 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 143 transitions. Word has length 103 [2024-11-08 19:19:04,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:04,990 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 143 transitions. [2024-11-08 19:19:04,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 19:19:04,991 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 143 transitions. [2024-11-08 19:19:04,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 19:19:04,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:04,998 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:05,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:05,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:05,200 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:05,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:05,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1582146467, now seen corresponding path program 1 times [2024-11-08 19:19:05,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:05,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487880310] [2024-11-08 19:19:05,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:05,202 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 19:19:05,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:05,206 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:05,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:05,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:19:05,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:06,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-08 19:19:06,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:06,186 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 35 treesize of output 15 [2024-11-08 19:19:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-08 19:19:06,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:19:06,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:06,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487880310] [2024-11-08 19:19:06,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487880310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:19:06,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:19:06,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-08 19:19:06,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896280752] [2024-11-08 19:19:06,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:06,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:19:06,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:19:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:19:06,826 INFO L87 Difference]: Start difference. First operand 109 states and 143 transitions. Second operand has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:19:07,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:07,660 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2024-11-08 19:19:07,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:19:07,662 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 105 [2024-11-08 19:19:07,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:07,664 INFO L225 Difference]: With dead ends: 215 [2024-11-08 19:19:07,664 INFO L226 Difference]: Without dead ends: 109 [2024-11-08 19:19:07,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:19:07,666 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 118 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:07,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 510 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:19:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-08 19:19:07,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2024-11-08 19:19:07,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:19:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 138 transitions. [2024-11-08 19:19:07,709 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 138 transitions. Word has length 105 [2024-11-08 19:19:07,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:07,710 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 138 transitions. [2024-11-08 19:19:07,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:19:07,710 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 138 transitions. [2024-11-08 19:19:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 19:19:07,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:07,713 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:07,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:07,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:07,914 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:07,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:07,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2053107567, now seen corresponding path program 1 times [2024-11-08 19:19:07,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:07,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573166750] [2024-11-08 19:19:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:07,916 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 19:19:07,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:07,917 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:07,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:08,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:19:08,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:08,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-08 19:19:08,747 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:08,748 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 35 treesize of output 15 [2024-11-08 19:19:08,800 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-08 19:19:08,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:09,322 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:19:09,323 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:09,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573166750] [2024-11-08 19:19:09,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573166750] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:19:09,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:19:09,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-08 19:19:09,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192840988] [2024-11-08 19:19:09,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:09,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:19:09,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:09,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:19:09,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:19:09,327 INFO L87 Difference]: Start difference. First operand 107 states and 138 transitions. Second operand has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:19:10,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:10,106 INFO L93 Difference]: Finished difference Result 203 states and 263 transitions. [2024-11-08 19:19:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:19:10,108 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 105 [2024-11-08 19:19:10,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:10,109 INFO L225 Difference]: With dead ends: 203 [2024-11-08 19:19:10,110 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 19:19:10,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:19:10,112 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 198 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:10,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 484 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:19:10,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 19:19:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-11-08 19:19:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.271604938271605) internal successors, (103), 81 states have internal predecessors, (103), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 19:19:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 125 transitions. [2024-11-08 19:19:10,132 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 125 transitions. Word has length 105 [2024-11-08 19:19:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:10,132 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 125 transitions. [2024-11-08 19:19:10,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-08 19:19:10,133 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions. [2024-11-08 19:19:10,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 19:19:10,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:10,135 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:10,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:10,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:10,336 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:10,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:10,337 INFO L85 PathProgramCache]: Analyzing trace with hash -95735208, now seen corresponding path program 1 times [2024-11-08 19:19:10,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:10,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224727960] [2024-11-08 19:19:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:10,337 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 19:19:10,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:10,341 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:10,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-08 19:19:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:10,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:19:10,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:10,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:19:10,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:19:10,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:19:10,970 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 19:19:11,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 19:19:11,131 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:19:11,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:19:11,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:11,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224727960] [2024-11-08 19:19:11,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224727960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:19:11,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:19:11,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:19:11,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135408182] [2024-11-08 19:19:11,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:11,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:19:11,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:11,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:19:11,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:19:11,135 INFO L87 Difference]: Start difference. First operand 97 states and 125 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:11,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:11,832 INFO L93 Difference]: Finished difference Result 263 states and 341 transitions. [2024-11-08 19:19:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:19:11,833 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-08 19:19:11,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:11,835 INFO L225 Difference]: With dead ends: 263 [2024-11-08 19:19:11,835 INFO L226 Difference]: Without dead ends: 169 [2024-11-08 19:19:11,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:19:11,837 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 74 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:11,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 656 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:19:11,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-08 19:19:11,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2024-11-08 19:19:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 143 states have (on average 1.2867132867132867) internal successors, (184), 144 states have internal predecessors, (184), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 19:19:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 216 transitions. [2024-11-08 19:19:11,872 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 216 transitions. Word has length 107 [2024-11-08 19:19:11,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:11,872 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 216 transitions. [2024-11-08 19:19:11,873 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2024-11-08 19:19:11,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 19:19:11,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:11,875 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:11,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-08 19:19:12,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:12,076 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:12,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:12,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1416928843, now seen corresponding path program 1 times [2024-11-08 19:19:12,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:12,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342534537] [2024-11-08 19:19:12,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:12,077 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 19:19:12,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:12,081 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:12,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:12,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 19:19:12,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:12,669 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 19:19:12,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:19:13,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 19:19:13,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 19:19:13,841 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:13,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 45 [2024-11-08 19:19:14,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:14,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 34 [2024-11-08 19:19:25,605 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-08 19:19:25,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:19:28,052 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:28,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342534537] [2024-11-08 19:19:28,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342534537] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:28,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:28,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 20 [2024-11-08 19:19:28,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070842163] [2024-11-08 19:19:28,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:28,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:19:28,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:28,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:19:28,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:19:28,055 INFO L87 Difference]: Start difference. First operand 166 states and 216 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:33,424 INFO L93 Difference]: Finished difference Result 436 states and 569 transitions. [2024-11-08 19:19:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:19:33,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-08 19:19:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:33,432 INFO L225 Difference]: With dead ends: 436 [2024-11-08 19:19:33,432 INFO L226 Difference]: Without dead ends: 273 [2024-11-08 19:19:33,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:19:33,434 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 60 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:33,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 692 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-08 19:19:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-08 19:19:33,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 199. [2024-11-08 19:19:33,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 176 states have (on average 1.2784090909090908) internal successors, (225), 177 states have internal predecessors, (225), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 19:19:33,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 257 transitions. [2024-11-08 19:19:33,463 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 257 transitions. Word has length 108 [2024-11-08 19:19:33,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:33,464 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 257 transitions. [2024-11-08 19:19:33,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:33,464 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 257 transitions. [2024-11-08 19:19:33,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 19:19:33,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:33,466 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:33,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:33,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:33,671 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:33,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1158763405, now seen corresponding path program 1 times [2024-11-08 19:19:33,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:33,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830920207] [2024-11-08 19:19:33,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:33,672 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 19:19:33,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:33,673 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:33,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:34,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 19:19:34,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:34,235 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 19:19:34,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:19:34,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-08 19:19:34,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:34,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-08 19:19:36,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:36,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 50 [2024-11-08 19:19:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-08 19:19:36,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:19:39,585 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:39,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830920207] [2024-11-08 19:19:39,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830920207] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:39,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:39,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2024-11-08 19:19:39,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048466358] [2024-11-08 19:19:39,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:39,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:19:39,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:39,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:19:39,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:19:39,587 INFO L87 Difference]: Start difference. First operand 199 states and 257 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:44,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:44,847 INFO L93 Difference]: Finished difference Result 466 states and 603 transitions. [2024-11-08 19:19:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:19:44,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-08 19:19:44,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:44,856 INFO L225 Difference]: With dead ends: 466 [2024-11-08 19:19:44,856 INFO L226 Difference]: Without dead ends: 270 [2024-11-08 19:19:44,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-11-08 19:19:44,860 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 55 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:44,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 772 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 19:19:44,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-08 19:19:44,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 212. [2024-11-08 19:19:44,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 189 states have (on average 1.2751322751322751) internal successors, (241), 190 states have internal predecessors, (241), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 19:19:44,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 273 transitions. [2024-11-08 19:19:44,893 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 273 transitions. Word has length 108 [2024-11-08 19:19:44,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:44,894 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 273 transitions. [2024-11-08 19:19:44,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:44,894 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 273 transitions. [2024-11-08 19:19:44,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 19:19:44,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:44,896 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:44,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:45,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:45,096 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:45,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:45,097 INFO L85 PathProgramCache]: Analyzing trace with hash 506299191, now seen corresponding path program 1 times [2024-11-08 19:19:45,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:45,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182492806] [2024-11-08 19:19:45,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:45,098 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 19:19:45,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:45,099 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:45,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:45,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:19:45,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:45,492 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 19:19:45,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:19:45,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-08 19:19:45,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:45,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-08 19:19:46,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:46,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 33 [2024-11-08 19:19:46,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:46,574 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 39 treesize of output 21 [2024-11-08 19:19:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-08 19:19:46,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:19:46,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:46,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182492806] [2024-11-08 19:19:46,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182492806] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:46,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:46,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-11-08 19:19:46,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759482606] [2024-11-08 19:19:46,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:46,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:19:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:19:46,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:19:46,872 INFO L87 Difference]: Start difference. First operand 212 states and 273 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:47,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:47,542 INFO L93 Difference]: Finished difference Result 479 states and 615 transitions. [2024-11-08 19:19:47,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:19:47,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-08 19:19:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:47,545 INFO L225 Difference]: With dead ends: 479 [2024-11-08 19:19:47,546 INFO L226 Difference]: Without dead ends: 270 [2024-11-08 19:19:47,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:19:47,547 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 64 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:47,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 341 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:19:47,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-08 19:19:47,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 223. [2024-11-08 19:19:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 200 states have (on average 1.255) internal successors, (251), 201 states have internal predecessors, (251), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 19:19:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 283 transitions. [2024-11-08 19:19:47,570 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 283 transitions. Word has length 108 [2024-11-08 19:19:47,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:47,570 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 283 transitions. [2024-11-08 19:19:47,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 283 transitions. [2024-11-08 19:19:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:19:47,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:47,572 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:47,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:47,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:47,773 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:47,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:47,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1350483459, now seen corresponding path program 1 times [2024-11-08 19:19:47,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:47,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402795436] [2024-11-08 19:19:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:47,774 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 19:19:47,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:47,775 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:47,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:48,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-08 19:19:48,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:48,228 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 19:19:48,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:19:48,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-08 19:19:49,000 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:49,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-11-08 19:19:50,031 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 19:19:50,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:19:50,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 69 [2024-11-08 19:19:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 150 proven. 21 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 19:19:52,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:55,464 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:19:55,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:19:55,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402795436] [2024-11-08 19:19:55,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402795436] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:55,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:55,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [20] total 27 [2024-11-08 19:19:55,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229223650] [2024-11-08 19:19:55,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:19:55,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:19:55,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:19:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:19:55,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=565, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:19:55,467 INFO L87 Difference]: Start difference. First operand 223 states and 283 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:58,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:58,816 INFO L93 Difference]: Finished difference Result 475 states and 604 transitions. [2024-11-08 19:19:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:19:58,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-08 19:19:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:58,821 INFO L225 Difference]: With dead ends: 475 [2024-11-08 19:19:58,822 INFO L226 Difference]: Without dead ends: 255 [2024-11-08 19:19:58,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2024-11-08 19:19:58,823 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 107 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:58,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 504 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 19:19:58,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-08 19:19:58,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 225. [2024-11-08 19:19:58,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 202 states have (on average 1.2524752475247525) internal successors, (253), 203 states have internal predecessors, (253), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 19:19:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 285 transitions. [2024-11-08 19:19:58,850 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 285 transitions. Word has length 109 [2024-11-08 19:19:58,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:58,851 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 285 transitions. [2024-11-08 19:19:58,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:19:58,851 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 285 transitions. [2024-11-08 19:19:58,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:19:58,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:58,853 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:58,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:59,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:59,053 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:59,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:59,054 INFO L85 PathProgramCache]: Analyzing trace with hash -128371224, now seen corresponding path program 1 times [2024-11-08 19:19:59,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:59,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598372539] [2024-11-08 19:19:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:59,055 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 19:19:59,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:59,056 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:59,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:19:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:59,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:19:59,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:59,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:19:59,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-08 19:20:00,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:00,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 19:20:00,160 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-08 19:20:00,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:00,430 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:20:00,431 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:00,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598372539] [2024-11-08 19:20:00,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598372539] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:00,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:00,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2024-11-08 19:20:00,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760320339] [2024-11-08 19:20:00,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:00,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:20:00,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:00,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:20:00,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:20:00,433 INFO L87 Difference]: Start difference. First operand 225 states and 285 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:00,659 INFO L93 Difference]: Finished difference Result 233 states and 294 transitions. [2024-11-08 19:20:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:20:00,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-08 19:20:00,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:00,662 INFO L225 Difference]: With dead ends: 233 [2024-11-08 19:20:00,662 INFO L226 Difference]: Without dead ends: 231 [2024-11-08 19:20:00,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:20:00,663 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 24 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:00,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 492 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:20:00,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-08 19:20:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-11-08 19:20:00,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 208 states have (on average 1.2451923076923077) internal successors, (259), 209 states have internal predecessors, (259), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 19:20:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 291 transitions. [2024-11-08 19:20:00,690 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 291 transitions. Word has length 109 [2024-11-08 19:20:00,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:00,691 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 291 transitions. [2024-11-08 19:20:00,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:00,691 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 291 transitions. [2024-11-08 19:20:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:20:00,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:00,693 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:00,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:00,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:00,893 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:00,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:00,894 INFO L85 PathProgramCache]: Analyzing trace with hash -126524182, now seen corresponding path program 1 times [2024-11-08 19:20:00,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:00,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147911086] [2024-11-08 19:20:00,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:00,895 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 19:20:00,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:00,896 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:00,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:01,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:20:01,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:20:01,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:01,305 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:01,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147911086] [2024-11-08 19:20:01,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147911086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:01,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:01,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:20:01,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786663085] [2024-11-08 19:20:01,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:01,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:01,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:01,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:01,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:20:01,308 INFO L87 Difference]: Start difference. First operand 231 states and 291 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:01,384 INFO L93 Difference]: Finished difference Result 465 states and 587 transitions. [2024-11-08 19:20:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:01,385 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-08 19:20:01,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:01,387 INFO L225 Difference]: With dead ends: 465 [2024-11-08 19:20:01,387 INFO L226 Difference]: Without dead ends: 237 [2024-11-08 19:20:01,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 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 19:20:01,388 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 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 19:20:01,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:20:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-08 19:20:01,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-11-08 19:20:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 214 states have (on average 1.2383177570093458) internal successors, (265), 215 states have internal predecessors, (265), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 19:20:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 297 transitions. [2024-11-08 19:20:01,410 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 297 transitions. Word has length 109 [2024-11-08 19:20:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:01,411 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 297 transitions. [2024-11-08 19:20:01,411 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:01,411 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 297 transitions. [2024-11-08 19:20:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:20:01,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:01,412 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:01,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:01,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:01,613 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:01,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:01,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1933366587, now seen corresponding path program 1 times [2024-11-08 19:20:01,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:01,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716034019] [2024-11-08 19:20:01,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:01,615 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 19:20:01,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:01,619 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:01,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:02,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:20:02,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:02,057 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 19:20:02,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:20:02,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 19:20:02,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-08 19:20:03,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:03,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-08 19:20:03,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:03,164 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 29 treesize of output 15 [2024-11-08 19:20:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 144 proven. 15 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-08 19:20:03,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:20:03,491 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:03,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716034019] [2024-11-08 19:20:03,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716034019] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:03,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:03,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-11-08 19:20:03,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722383529] [2024-11-08 19:20:03,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:03,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:03,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:03,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:03,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:20:03,493 INFO L87 Difference]: Start difference. First operand 237 states and 297 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:03,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:03,988 INFO L93 Difference]: Finished difference Result 528 states and 659 transitions. [2024-11-08 19:20:03,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:03,989 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-08 19:20:03,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:03,991 INFO L225 Difference]: With dead ends: 528 [2024-11-08 19:20:03,991 INFO L226 Difference]: Without dead ends: 294 [2024-11-08 19:20:03,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:20:03,993 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 70 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:03,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 272 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:20:03,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-08 19:20:04,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 237. [2024-11-08 19:20:04,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 214 states have (on average 1.2242990654205608) internal successors, (262), 215 states have internal predecessors, (262), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 19:20:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 294 transitions. [2024-11-08 19:20:04,019 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 294 transitions. Word has length 109 [2024-11-08 19:20:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:04,020 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 294 transitions. [2024-11-08 19:20:04,020 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 294 transitions. [2024-11-08 19:20:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:20:04,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:04,022 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:04,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:04,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:04,223 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:04,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:04,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1423893497, now seen corresponding path program 1 times [2024-11-08 19:20:04,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:04,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368127853] [2024-11-08 19:20:04,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:04,225 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 19:20:04,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:04,228 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:04,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-08 19:20:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:04,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 19:20:04,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:04,718 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 19:20:04,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:20:04,893 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 14 treesize of output 10 [2024-11-08 19:20:05,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:05,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 37 [2024-11-08 19:20:05,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:05,819 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 57 treesize of output 27 [2024-11-08 19:20:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:20:05,962 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:05,962 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:05,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368127853] [2024-11-08 19:20:05,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368127853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:05,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:05,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:20:05,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979519523] [2024-11-08 19:20:05,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:05,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:20:05,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:05,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:20:05,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:20:05,965 INFO L87 Difference]: Start difference. First operand 237 states and 294 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:20:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:10,099 INFO L93 Difference]: Finished difference Result 912 states and 1114 transitions. [2024-11-08 19:20:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:20:10,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-08 19:20:10,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:10,103 INFO L225 Difference]: With dead ends: 912 [2024-11-08 19:20:10,103 INFO L226 Difference]: Without dead ends: 678 [2024-11-08 19:20:10,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:20:10,105 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 278 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:10,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 954 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 19:20:10,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-08 19:20:10,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 535. [2024-11-08 19:20:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 480 states have (on average 1.2145833333333333) internal successors, (583), 483 states have internal predecessors, (583), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-08 19:20:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 661 transitions. [2024-11-08 19:20:10,170 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 661 transitions. Word has length 109 [2024-11-08 19:20:10,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:10,171 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 661 transitions. [2024-11-08 19:20:10,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:20:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 661 transitions. [2024-11-08 19:20:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:20:10,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:10,173 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:10,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-08 19:20:10,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:10,374 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:10,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:10,375 INFO L85 PathProgramCache]: Analyzing trace with hash 292752922, now seen corresponding path program 1 times [2024-11-08 19:20:10,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:10,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968770455] [2024-11-08 19:20:10,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:10,376 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 19:20:10,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:10,377 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:10,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:10,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:20:10,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:10,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:20:10,854 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 14 treesize of output 10 [2024-11-08 19:20:10,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-08 19:20:11,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:11,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 32 [2024-11-08 19:20:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:20:11,269 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:11,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:11,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968770455] [2024-11-08 19:20:11,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968770455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:11,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:11,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:20:11,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238902790] [2024-11-08 19:20:11,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:11,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:20:11,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:11,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:20:11,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:20:11,273 INFO L87 Difference]: Start difference. First operand 535 states and 661 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:20:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:12,845 INFO L93 Difference]: Finished difference Result 1125 states and 1393 transitions. [2024-11-08 19:20:12,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:20:12,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-08 19:20:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:12,850 INFO L225 Difference]: With dead ends: 1125 [2024-11-08 19:20:12,850 INFO L226 Difference]: Without dead ends: 593 [2024-11-08 19:20:12,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:20:12,853 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 181 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:12,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 783 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 19:20:12,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-08 19:20:12,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 589. [2024-11-08 19:20:12,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 522 states have (on average 1.21455938697318) internal successors, (634), 526 states have internal predecessors, (634), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 19:20:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 730 transitions. [2024-11-08 19:20:12,934 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 730 transitions. Word has length 110 [2024-11-08 19:20:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:12,934 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 730 transitions. [2024-11-08 19:20:12,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:20:12,935 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 730 transitions. [2024-11-08 19:20:12,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:20:12,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:12,937 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:12,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:13,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:13,138 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:13,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:13,138 INFO L85 PathProgramCache]: Analyzing trace with hash 993817500, now seen corresponding path program 1 times [2024-11-08 19:20:13,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:13,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592250074] [2024-11-08 19:20:13,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:13,139 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 19:20:13,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:13,143 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:13,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:20:13,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:15,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:15,743 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 303 treesize of output 99 [2024-11-08 19:20:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-08 19:20:15,931 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:20:16,680 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:16,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592250074] [2024-11-08 19:20:16,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592250074] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:16,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:16,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 19:20:16,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209201956] [2024-11-08 19:20:16,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:16,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:16,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:16,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:16,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:20:16,683 INFO L87 Difference]: Start difference. First operand 589 states and 730 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:17,305 INFO L93 Difference]: Finished difference Result 1135 states and 1401 transitions. [2024-11-08 19:20:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:17,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-08 19:20:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:17,311 INFO L225 Difference]: With dead ends: 1135 [2024-11-08 19:20:17,311 INFO L226 Difference]: Without dead ends: 579 [2024-11-08 19:20:17,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:20:17,314 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 66 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:17,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 396 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:20:17,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-08 19:20:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 577. [2024-11-08 19:20:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 510 states have (on average 1.2117647058823529) internal successors, (618), 514 states have internal predecessors, (618), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 19:20:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 714 transitions. [2024-11-08 19:20:17,401 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 714 transitions. Word has length 110 [2024-11-08 19:20:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:17,402 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 714 transitions. [2024-11-08 19:20:17,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 714 transitions. [2024-11-08 19:20:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:20:17,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:17,404 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:17,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:17,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:17,606 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:17,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:17,606 INFO L85 PathProgramCache]: Analyzing trace with hash 354792536, now seen corresponding path program 1 times [2024-11-08 19:20:17,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:17,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735144367] [2024-11-08 19:20:17,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:17,608 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 19:20:17,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:17,612 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:17,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:18,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:20:18,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:19,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:19,942 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 304 treesize of output 100 [2024-11-08 19:20:20,133 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-08 19:20:20,134 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:20:20,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:20,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735144367] [2024-11-08 19:20:20,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735144367] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:20,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:20,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 19:20:20,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410672097] [2024-11-08 19:20:20,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:20,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:20,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:20,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:20,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:20:20,885 INFO L87 Difference]: Start difference. First operand 577 states and 714 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:21,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:21,529 INFO L93 Difference]: Finished difference Result 1182 states and 1454 transitions. [2024-11-08 19:20:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:21,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-08 19:20:21,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:21,536 INFO L225 Difference]: With dead ends: 1182 [2024-11-08 19:20:21,537 INFO L226 Difference]: Without dead ends: 638 [2024-11-08 19:20:21,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:20:21,539 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:21,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 369 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:20:21,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-08 19:20:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 578. [2024-11-08 19:20:21,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 511 states have (on average 1.2093933463796478) internal successors, (618), 515 states have internal predecessors, (618), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 19:20:21,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 714 transitions. [2024-11-08 19:20:21,646 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 714 transitions. Word has length 110 [2024-11-08 19:20:21,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:21,647 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 714 transitions. [2024-11-08 19:20:21,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:21,647 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 714 transitions. [2024-11-08 19:20:21,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 19:20:21,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:21,649 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:21,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-08 19:20:21,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:21,850 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:21,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:21,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1055857114, now seen corresponding path program 1 times [2024-11-08 19:20:21,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:21,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601989898] [2024-11-08 19:20:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:21,852 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 19:20:21,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:21,853 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:21,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:22,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:20:22,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:22,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 19:20:22,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:20:22,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 19:20:22,373 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 19:20:22,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 19:20:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:20:22,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:22,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:22,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601989898] [2024-11-08 19:20:22,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601989898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:22,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:22,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:20:22,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70063697] [2024-11-08 19:20:22,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:22,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:20:22,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:22,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:20:22,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:20:22,533 INFO L87 Difference]: Start difference. First operand 578 states and 714 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:23,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:23,509 INFO L93 Difference]: Finished difference Result 1128 states and 1387 transitions. [2024-11-08 19:20:23,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:20:23,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-08 19:20:23,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:23,513 INFO L225 Difference]: With dead ends: 1128 [2024-11-08 19:20:23,513 INFO L226 Difference]: Without dead ends: 583 [2024-11-08 19:20:23,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 104 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 19:20:23,516 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 74 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:23,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 771 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:20:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-08 19:20:23,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 574. [2024-11-08 19:20:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 507 states have (on average 1.2090729783037475) internal successors, (613), 511 states have internal predecessors, (613), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 19:20:23,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 709 transitions. [2024-11-08 19:20:23,611 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 709 transitions. Word has length 110 [2024-11-08 19:20:23,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:23,611 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 709 transitions. [2024-11-08 19:20:23,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 709 transitions. [2024-11-08 19:20:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:20:23,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:23,613 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:23,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:23,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:23,813 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:23,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1353277231, now seen corresponding path program 1 times [2024-11-08 19:20:23,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:23,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105919384] [2024-11-08 19:20:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:23,815 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 19:20:23,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:23,819 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:23,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:24,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 19:20:24,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:24,309 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 28 treesize of output 20 [2024-11-08 19:20:24,315 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 19:20:24,683 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 24 treesize of output 12 [2024-11-08 19:20:24,690 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 19:20:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:20:24,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:24,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:24,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105919384] [2024-11-08 19:20:24,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105919384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:24,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:24,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:20:24,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60469610] [2024-11-08 19:20:24,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:24,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:20:24,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:24,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:20:24,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:20:24,783 INFO L87 Difference]: Start difference. First operand 574 states and 709 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:27,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:27,354 INFO L93 Difference]: Finished difference Result 1285 states and 1580 transitions. [2024-11-08 19:20:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:20:27,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-08 19:20:27,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:27,359 INFO L225 Difference]: With dead ends: 1285 [2024-11-08 19:20:27,359 INFO L226 Difference]: Without dead ends: 744 [2024-11-08 19:20:27,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:20:27,362 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 175 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:27,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 862 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 19:20:27,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-08 19:20:27,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 594. [2024-11-08 19:20:27,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 527 states have (on average 1.2049335863377608) internal successors, (635), 531 states have internal predecessors, (635), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 19:20:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 731 transitions. [2024-11-08 19:20:27,473 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 731 transitions. Word has length 111 [2024-11-08 19:20:27,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:27,474 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 731 transitions. [2024-11-08 19:20:27,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 731 transitions. [2024-11-08 19:20:27,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:20:27,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:27,476 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:27,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:27,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:27,677 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:27,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:27,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2033335601, now seen corresponding path program 1 times [2024-11-08 19:20:27,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:27,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717894851] [2024-11-08 19:20:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:27,679 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 19:20:27,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:27,682 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:27,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:28,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:20:28,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:38,043 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 136 treesize of output 88 [2024-11-08 19:20:38,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:20:38,068 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 100 treesize of output 40 [2024-11-08 19:20:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-08 19:20:39,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:39,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:39,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717894851] [2024-11-08 19:20:39,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717894851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:39,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:39,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:20:39,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778479931] [2024-11-08 19:20:39,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:39,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:20:39,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:39,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:20:39,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:20:39,553 INFO L87 Difference]: Start difference. First operand 594 states and 731 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:20:51,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:51,976 INFO L93 Difference]: Finished difference Result 1813 states and 2189 transitions. [2024-11-08 19:20:51,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:20:51,978 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-08 19:20:51,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:51,982 INFO L225 Difference]: With dead ends: 1813 [2024-11-08 19:20:51,982 INFO L226 Difference]: Without dead ends: 1252 [2024-11-08 19:20:51,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:20:51,984 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 232 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:51,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 719 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-08 19:20:51,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-11-08 19:20:52,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1188. [2024-11-08 19:20:52,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1060 states have (on average 1.1773584905660377) internal successors, (1248), 1073 states have internal predecessors, (1248), 92 states have call successors, (92), 35 states have call predecessors, (92), 35 states have return successors, (92), 79 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:20:52,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1432 transitions. [2024-11-08 19:20:52,143 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1432 transitions. Word has length 111 [2024-11-08 19:20:52,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:52,143 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 1432 transitions. [2024-11-08 19:20:52,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:20:52,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1432 transitions. [2024-11-08 19:20:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:20:52,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:52,146 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:52,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-08 19:20:52,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:52,347 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:52,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:52,347 INFO L85 PathProgramCache]: Analyzing trace with hash -44001297, now seen corresponding path program 1 times [2024-11-08 19:20:52,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:52,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283954510] [2024-11-08 19:20:52,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:52,348 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 19:20:52,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:52,349 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:52,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:52,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:20:52,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-08 19:20:52,787 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:52,787 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:52,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283954510] [2024-11-08 19:20:52,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283954510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:52,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:52,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:20:52,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807227328] [2024-11-08 19:20:52,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:52,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:20:52,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:52,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:20:52,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:20:52,790 INFO L87 Difference]: Start difference. First operand 1188 states and 1432 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:20:53,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:53,014 INFO L93 Difference]: Finished difference Result 2341 states and 2815 transitions. [2024-11-08 19:20:53,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:20:53,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-08 19:20:53,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:53,020 INFO L225 Difference]: With dead ends: 2341 [2024-11-08 19:20:53,021 INFO L226 Difference]: Without dead ends: 1188 [2024-11-08 19:20:53,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 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 19:20:53,025 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:53,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:20:53,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2024-11-08 19:20:53,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1188. [2024-11-08 19:20:53,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1060 states have (on average 1.1716981132075472) internal successors, (1242), 1073 states have internal predecessors, (1242), 92 states have call successors, (92), 35 states have call predecessors, (92), 35 states have return successors, (92), 79 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-08 19:20:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1426 transitions. [2024-11-08 19:20:53,237 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1426 transitions. Word has length 111 [2024-11-08 19:20:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:53,238 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 1426 transitions. [2024-11-08 19:20:53,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 19:20:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1426 transitions. [2024-11-08 19:20:53,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:20:53,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:53,242 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:53,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-08 19:20:53,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:53,443 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:53,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:53,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1463001001, now seen corresponding path program 1 times [2024-11-08 19:20:53,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:53,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850170811] [2024-11-08 19:20:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:53,444 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 19:20:53,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:53,445 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:53,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:53,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 19:20:53,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:53,863 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 19:20:53,917 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 39 treesize of output 27 [2024-11-08 19:20:54,198 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 28 treesize of output 16 [2024-11-08 19:20:54,530 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:20:54,531 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:20:54,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:54,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850170811] [2024-11-08 19:20:54,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850170811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:54,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:54,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:20:54,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165468409] [2024-11-08 19:20:54,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:54,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:20:54,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:20:54,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:20:54,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:20:54,533 INFO L87 Difference]: Start difference. First operand 1188 states and 1426 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:59,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:59,158 INFO L93 Difference]: Finished difference Result 2208 states and 2656 transitions. [2024-11-08 19:20:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:20:59,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-08 19:20:59,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:59,164 INFO L225 Difference]: With dead ends: 2208 [2024-11-08 19:20:59,164 INFO L226 Difference]: Without dead ends: 1631 [2024-11-08 19:20:59,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:20:59,166 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 169 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:59,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 696 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 19:20:59,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-11-08 19:20:59,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1416. [2024-11-08 19:20:59,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1258 states have (on average 1.1748807631160572) internal successors, (1478), 1277 states have internal predecessors, (1478), 112 states have call successors, (112), 45 states have call predecessors, (112), 45 states have return successors, (112), 93 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-08 19:20:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1702 transitions. [2024-11-08 19:20:59,419 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1702 transitions. Word has length 112 [2024-11-08 19:20:59,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:59,420 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 1702 transitions. [2024-11-08 19:20:59,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:20:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1702 transitions. [2024-11-08 19:20:59,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:20:59,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:59,422 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:59,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:59,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:59,623 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:20:59,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:59,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1400961387, now seen corresponding path program 1 times [2024-11-08 19:20:59,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:20:59,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877605345] [2024-11-08 19:20:59,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:59,626 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 19:20:59,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:20:59,630 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:20:59,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:00,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 19:21:00,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:21:00,878 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 19:21:00,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-08 19:21:00,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-08 19:21:01,463 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 46 treesize of output 34 [2024-11-08 19:21:02,095 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 53 treesize of output 41 [2024-11-08 19:21:02,100 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 64 treesize of output 48 [2024-11-08 19:21:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:21:02,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:21:02,390 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:21:02,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877605345] [2024-11-08 19:21:02,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877605345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:02,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:02,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 19:21:02,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883205105] [2024-11-08 19:21:02,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:02,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 19:21:02,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:21:02,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 19:21:02,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:21:02,393 INFO L87 Difference]: Start difference. First operand 1416 states and 1702 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:21:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:10,665 INFO L93 Difference]: Finished difference Result 2508 states and 3009 transitions. [2024-11-08 19:21:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-08 19:21:10,665 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-08 19:21:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:10,672 INFO L225 Difference]: With dead ends: 2508 [2024-11-08 19:21:10,673 INFO L226 Difference]: Without dead ends: 1813 [2024-11-08 19:21:10,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=193, Invalid=1367, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 19:21:10,675 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 642 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:10,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1954 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-08 19:21:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2024-11-08 19:21:10,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1526. [2024-11-08 19:21:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1368 states have (on average 1.1666666666666667) internal successors, (1596), 1387 states have internal predecessors, (1596), 112 states have call successors, (112), 45 states have call predecessors, (112), 45 states have return successors, (112), 93 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-08 19:21:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1820 transitions. [2024-11-08 19:21:10,902 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1820 transitions. Word has length 112 [2024-11-08 19:21:10,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:10,903 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 1820 transitions. [2024-11-08 19:21:10,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:21:10,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1820 transitions. [2024-11-08 19:21:10,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:21:10,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:10,908 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:10,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:11,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:11,109 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:11,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1832439445, now seen corresponding path program 1 times [2024-11-08 19:21:11,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:21:11,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775925628] [2024-11-08 19:21:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:11,110 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 19:21:11,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:21:11,113 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:11,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:11,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:21:11,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:21:11,570 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 19:21:11,695 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 54 treesize of output 42 [2024-11-08 19:21:11,707 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 14 treesize of output 10 [2024-11-08 19:21:12,068 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 64 treesize of output 44 [2024-11-08 19:21:12,867 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 53 treesize of output 41 [2024-11-08 19:21:12,875 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 52 treesize of output 40 [2024-11-08 19:21:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:21:13,151 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:21:13,151 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:21:13,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775925628] [2024-11-08 19:21:13,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775925628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:13,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:13,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 19:21:13,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026840905] [2024-11-08 19:21:13,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:13,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:21:13,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:21:13,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:21:13,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:21:13,153 INFO L87 Difference]: Start difference. First operand 1526 states and 1820 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:21:18,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:18,561 INFO L93 Difference]: Finished difference Result 2519 states and 2999 transitions. [2024-11-08 19:21:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 19:21:18,563 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-08 19:21:18,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:18,569 INFO L225 Difference]: With dead ends: 2519 [2024-11-08 19:21:18,569 INFO L226 Difference]: Without dead ends: 1824 [2024-11-08 19:21:18,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:21:18,570 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 248 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:18,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 2175 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 19:21:18,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2024-11-08 19:21:18,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1622. [2024-11-08 19:21:18,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1464 states have (on average 1.1625683060109289) internal successors, (1702), 1483 states have internal predecessors, (1702), 112 states have call successors, (112), 45 states have call predecessors, (112), 45 states have return successors, (112), 93 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-08 19:21:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 1926 transitions. [2024-11-08 19:21:18,817 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 1926 transitions. Word has length 112 [2024-11-08 19:21:18,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:18,818 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 1926 transitions. [2024-11-08 19:21:18,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:21:18,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 1926 transitions. [2024-11-08 19:21:18,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:21:18,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:18,821 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:18,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:21:19,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:19,022 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:19,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:19,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1894479059, now seen corresponding path program 1 times [2024-11-08 19:21:19,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:21:19,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853398645] [2024-11-08 19:21:19,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:19,023 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 19:21:19,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:21:19,024 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:19,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:19,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:21:19,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:21:19,382 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 19:21:19,399 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 29 treesize of output 21 [2024-11-08 19:21:20,292 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 19:21:20,299 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 52 treesize of output 28 [2024-11-08 19:21:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:21:20,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:21:20,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:21:20,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853398645] [2024-11-08 19:21:20,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853398645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:20,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:20,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 19:21:20,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568699970] [2024-11-08 19:21:20,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:20,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:21:20,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:21:20,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:21:20,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:21:20,443 INFO L87 Difference]: Start difference. First operand 1622 states and 1926 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:21:23,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:23,991 INFO L93 Difference]: Finished difference Result 2642 states and 3137 transitions. [2024-11-08 19:21:23,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:21:23,993 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-08 19:21:23,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:24,001 INFO L225 Difference]: With dead ends: 2642 [2024-11-08 19:21:24,001 INFO L226 Difference]: Without dead ends: 1873 [2024-11-08 19:21:24,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:21:24,003 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 195 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:24,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1381 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 19:21:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2024-11-08 19:21:24,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1636. [2024-11-08 19:21:24,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1478 states have (on average 1.1617050067658998) internal successors, (1717), 1497 states have internal predecessors, (1717), 112 states have call successors, (112), 45 states have call predecessors, (112), 45 states have return successors, (112), 93 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-08 19:21:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 1941 transitions. [2024-11-08 19:21:24,257 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 1941 transitions. Word has length 112 [2024-11-08 19:21:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:24,257 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 1941 transitions. [2024-11-08 19:21:24,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:21:24,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 1941 transitions. [2024-11-08 19:21:24,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:21:24,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:24,260 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:24,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:24,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:24,461 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:24,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:24,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1720429867, now seen corresponding path program 1 times [2024-11-08 19:21:24,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:21:24,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48830698] [2024-11-08 19:21:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:24,462 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 19:21:24,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:21:24,463 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:24,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-08 19:21:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:24,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:21:24,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:21:25,732 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 19:21:25,974 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 71 treesize of output 55 [2024-11-08 19:21:25,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-11-08 19:21:26,544 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 65 treesize of output 45 [2024-11-08 19:21:27,405 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 53 treesize of output 41 [2024-11-08 19:21:27,421 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 52 treesize of output 40 [2024-11-08 19:21:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:21:27,755 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:21:27,755 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:21:27,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48830698] [2024-11-08 19:21:27,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48830698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:27,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:27,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 19:21:27,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176058434] [2024-11-08 19:21:27,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:27,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 19:21:27,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:21:27,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 19:21:27,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:21:27,757 INFO L87 Difference]: Start difference. First operand 1636 states and 1941 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:21:38,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:38,553 INFO L93 Difference]: Finished difference Result 2750 states and 3266 transitions. [2024-11-08 19:21:38,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-08 19:21:38,554 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-08 19:21:38,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:38,561 INFO L225 Difference]: With dead ends: 2750 [2024-11-08 19:21:38,562 INFO L226 Difference]: Without dead ends: 1963 [2024-11-08 19:21:38,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 19:21:38,565 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 480 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:38,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 2456 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1434 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2024-11-08 19:21:38,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2024-11-08 19:21:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1454. [2024-11-08 19:21:38,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1328 states have (on average 1.1528614457831325) internal successors, (1531), 1341 states have internal predecessors, (1531), 88 states have call successors, (88), 37 states have call predecessors, (88), 37 states have return successors, (88), 75 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-08 19:21:38,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1707 transitions. [2024-11-08 19:21:38,775 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1707 transitions. Word has length 112 [2024-11-08 19:21:38,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:38,775 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 1707 transitions. [2024-11-08 19:21:38,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:21:38,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1707 transitions. [2024-11-08 19:21:38,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 19:21:38,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:38,778 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:38,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-08 19:21:38,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:38,979 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:38,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:38,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1172486901, now seen corresponding path program 1 times [2024-11-08 19:21:38,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:21:38,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436233345] [2024-11-08 19:21:38,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:38,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:21:38,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:21:38,982 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:38,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:21:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:39,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:21:39,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:21:48,895 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 134 treesize of output 86 [2024-11-08 19:21:48,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:21:48,919 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 100 treesize of output 40 [2024-11-08 19:21:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 118 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-08 19:21:50,606 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:22:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:22:03,496 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:22:03,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436233345] [2024-11-08 19:22:03,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436233345] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:22:03,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:22:03,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-08 19:22:03,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818425226] [2024-11-08 19:22:03,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:22:03,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:22:03,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:22:03,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:22:03,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:22:03,498 INFO L87 Difference]: Start difference. First operand 1454 states and 1707 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:22:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:22:19,088 INFO L93 Difference]: Finished difference Result 3026 states and 3523 transitions. [2024-11-08 19:22:19,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:22:19,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2024-11-08 19:22:19,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:22:19,108 INFO L225 Difference]: With dead ends: 3026 [2024-11-08 19:22:19,108 INFO L226 Difference]: Without dead ends: 1616 [2024-11-08 19:22:19,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:22:19,111 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 56 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:22:19,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 291 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2024-11-08 19:22:19,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-08 19:22:19,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 786. [2024-11-08 19:22:19,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 718 states have (on average 1.15041782729805) internal successors, (826), 723 states have internal predecessors, (826), 47 states have call successors, (47), 20 states have call predecessors, (47), 20 states have return successors, (47), 42 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-08 19:22:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 920 transitions. [2024-11-08 19:22:19,216 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 920 transitions. Word has length 113 [2024-11-08 19:22:19,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:22:19,217 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 920 transitions. [2024-11-08 19:22:19,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:22:19,217 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 920 transitions. [2024-11-08 19:22:19,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 19:22:19,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:22:19,219 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:22:19,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:19,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:19,420 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:22:19,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:22:19,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2027908999, now seen corresponding path program 1 times [2024-11-08 19:22:19,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:22:19,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906622693] [2024-11-08 19:22:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:22:19,421 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 19:22:19,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:22:19,422 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:19,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:22:19,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-08 19:22:19,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:22:20,382 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 12 treesize of output 8 [2024-11-08 19:22:20,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2024-11-08 19:22:21,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:22:21,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 35 [2024-11-08 19:22:22,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-08 19:22:23,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-11-08 19:22:23,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:22:23,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 72 [2024-11-08 19:22:25,453 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 52 treesize of output 32 [2024-11-08 19:22:25,748 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 57 treesize of output 45 [2024-11-08 19:22:25,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:22:25,757 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 115 treesize of output 65 [2024-11-08 19:22:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 146 proven. 21 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 19:22:26,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:22:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:22:27,866 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:22:27,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906622693] [2024-11-08 19:22:27,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906622693] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:22:27,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:22:27,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [25] total 32 [2024-11-08 19:22:27,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456334781] [2024-11-08 19:22:27,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:22:27,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:22:27,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:22:27,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:22:27,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:22:27,869 INFO L87 Difference]: Start difference. First operand 786 states and 920 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:22:30,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:22:30,664 INFO L93 Difference]: Finished difference Result 1385 states and 1634 transitions. [2024-11-08 19:22:30,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:22:30,665 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-08 19:22:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:22:30,668 INFO L225 Difference]: With dead ends: 1385 [2024-11-08 19:22:30,668 INFO L226 Difference]: Without dead ends: 950 [2024-11-08 19:22:30,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 196 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=211, Invalid=1349, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 19:22:30,670 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:22:30,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 816 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 19:22:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-08 19:22:30,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 770. [2024-11-08 19:22:30,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 702 states have (on average 1.1481481481481481) internal successors, (806), 707 states have internal predecessors, (806), 47 states have call successors, (47), 20 states have call predecessors, (47), 20 states have return successors, (47), 42 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-08 19:22:30,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 900 transitions. [2024-11-08 19:22:30,822 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 900 transitions. Word has length 115 [2024-11-08 19:22:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:22:30,822 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 900 transitions. [2024-11-08 19:22:30,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:22:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 900 transitions. [2024-11-08 19:22:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 19:22:30,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:22:30,825 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:22:30,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 19:22:31,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:31,026 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:22:31,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:22:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1347850629, now seen corresponding path program 1 times [2024-11-08 19:22:31,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:22:31,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124711529] [2024-11-08 19:22:31,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:22:31,027 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 19:22:31,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:22:31,028 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:31,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:22:31,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:22:31,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:22:32,185 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 15 treesize of output 1 [2024-11-08 19:22:32,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-08 19:22:33,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:22:33,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-11-08 19:22:34,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2024-11-08 19:22:34,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:22:34,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 58 [2024-11-08 19:22:34,806 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 57 treesize of output 45 [2024-11-08 19:22:34,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:22:34,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 55 [2024-11-08 19:22:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 152 proven. 15 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 19:22:35,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:22:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 19:22:35,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:22:35,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124711529] [2024-11-08 19:22:35,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124711529] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:22:35,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:22:35,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 20 [2024-11-08 19:22:35,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703735066] [2024-11-08 19:22:35,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:22:35,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:22:35,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:22:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:22:35,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:22:35,475 INFO L87 Difference]: Start difference. First operand 770 states and 900 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:22:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:22:36,422 INFO L93 Difference]: Finished difference Result 1282 states and 1508 transitions. [2024-11-08 19:22:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:22:36,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-08 19:22:36,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:22:36,426 INFO L225 Difference]: With dead ends: 1282 [2024-11-08 19:22:36,426 INFO L226 Difference]: Without dead ends: 862 [2024-11-08 19:22:36,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:22:36,428 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 62 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:22:36,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 898 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:22:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-11-08 19:22:36,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 695. [2024-11-08 19:22:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 627 states have (on average 1.1531100478468899) internal successors, (723), 632 states have internal predecessors, (723), 47 states have call successors, (47), 20 states have call predecessors, (47), 20 states have return successors, (47), 42 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-08 19:22:36,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 817 transitions. [2024-11-08 19:22:36,518 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 817 transitions. Word has length 115 [2024-11-08 19:22:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:22:36,518 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 817 transitions. [2024-11-08 19:22:36,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:22:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 817 transitions. [2024-11-08 19:22:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-08 19:22:36,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:22:36,521 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 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] [2024-11-08 19:22:36,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Ended with exit code 0 [2024-11-08 19:22:36,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:36,722 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:22:36,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:22:36,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1644848189, now seen corresponding path program 1 times [2024-11-08 19:22:36,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:22:36,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732729761] [2024-11-08 19:22:36,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:22:36,723 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 19:22:36,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:22:36,725 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:36,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:22:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:22:37,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:22:37,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:22:47,525 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 135 treesize of output 87 [2024-11-08 19:22:47,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:22:47,549 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 99 treesize of output 39 [2024-11-08 19:22:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 650 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-08 19:22:49,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:22:49,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:22:49,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732729761] [2024-11-08 19:22:49,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732729761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:22:49,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:22:49,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:22:49,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163497209] [2024-11-08 19:22:49,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:22:49,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:22:49,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:22:49,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:22:49,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:22:49,048 INFO L87 Difference]: Start difference. First operand 695 states and 817 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-08 19:23:03,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:23:03,403 INFO L93 Difference]: Finished difference Result 1761 states and 2050 transitions. [2024-11-08 19:23:03,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:23:03,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 216 [2024-11-08 19:23:03,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:23:03,411 INFO L225 Difference]: With dead ends: 1761 [2024-11-08 19:23:03,411 INFO L226 Difference]: Without dead ends: 1352 [2024-11-08 19:23:03,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:23:03,413 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 186 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:23:03,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 891 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2024-11-08 19:23:03,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-08 19:23:03,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1304. [2024-11-08 19:23:03,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1178 states have (on average 1.1400679117147707) internal successors, (1343), 1191 states have internal predecessors, (1343), 88 states have call successors, (88), 37 states have call predecessors, (88), 37 states have return successors, (88), 75 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-08 19:23:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1519 transitions. [2024-11-08 19:23:03,604 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1519 transitions. Word has length 216 [2024-11-08 19:23:03,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:23:03,605 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1519 transitions. [2024-11-08 19:23:03,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-08 19:23:03,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1519 transitions. [2024-11-08 19:23:03,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-08 19:23:03,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:23:03,610 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 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] [2024-11-08 19:23:03,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:23:03,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:23:03,811 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:23:03,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:23:03,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1822985532, now seen corresponding path program 1 times [2024-11-08 19:23:03,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:23:03,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983068492] [2024-11-08 19:23:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:23:03,812 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 19:23:03,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:23:03,814 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:23:03,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:23:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:23:04,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-08 19:23:04,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:23:05,363 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 15 treesize of output 1 [2024-11-08 19:23:06,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-08 19:23:06,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-11-08 19:23:07,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:23:07,345 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 53 treesize of output 35 [2024-11-08 19:23:07,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2024-11-08 19:23:07,892 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 19:23:08,675 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 14 treesize of output 10 [2024-11-08 19:23:09,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-08 19:23:12,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:23:12,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 46 [2024-11-08 19:23:14,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 19:23:14,041 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 78 treesize of output 36 [2024-11-08 19:23:14,577 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 280 proven. 562 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-08 19:23:14,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:23:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2024-11-08 19:23:19,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:23:19,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983068492] [2024-11-08 19:23:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983068492] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:23:19,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:23:19,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [27] total 33 [2024-11-08 19:23:19,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732439268] [2024-11-08 19:23:19,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:23:19,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:23:19,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:23:19,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:23:19,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=915, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 19:23:19,318 INFO L87 Difference]: Start difference. First operand 1304 states and 1519 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:23:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:23:24,814 INFO L93 Difference]: Finished difference Result 2128 states and 2463 transitions. [2024-11-08 19:23:24,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:23:24,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 218 [2024-11-08 19:23:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:23:24,823 INFO L225 Difference]: With dead ends: 2128 [2024-11-08 19:23:24,824 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 19:23:24,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=156, Invalid=1034, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 19:23:24,831 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 22 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:23:24,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 563 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 19:23:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 19:23:24,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 19:23:24,832 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 19:23:24,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 19:23:24,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2024-11-08 19:23:24,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:23:24,834 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 19:23:24,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 19:23:24,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 19:23:24,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:23:24,838 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 19:23:24,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:23:25,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385123ae-a12f-4edf-94c8-aaeb0c333e24/bin/uautomizer-verify-jihMAELWvX/mathsat -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 19:23:25,043 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] [2024-11-08 19:23:25,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.