./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme --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 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:11,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:11,155 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:59:11,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:11,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:11,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:11,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:11,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:11,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:11,214 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:11,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:11,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:11,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:11,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:11,218 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:11,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:11,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:59:11,220 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:59:11,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:59:11,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:59:11,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:11,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:59:11,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:11,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:59:11,225 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:59:11,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:59:11,226 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:11,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:11,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:11,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:11,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:11,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:11,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:11,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:11,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:59:11,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:59:11,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:59:11,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:11,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:11,233 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:59:11,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:11,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:11,234 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_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 [2023-11-26 11:59:11,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:11,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:11,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:11,648 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:11,649 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:11,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2023-11-26 11:59:14,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:59:15,040 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:59:15,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2023-11-26 11:59:15,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/data/b2422b4f4/46153152b83d4e14a80e3ae1330c5af5/FLAG2f9c380bf [2023-11-26 11:59:15,377 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/data/b2422b4f4/46153152b83d4e14a80e3ae1330c5af5 [2023-11-26 11:59:15,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:59:15,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:59:15,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:15,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:59:15,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:59:15,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:15,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326eab5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15, skipping insertion in model container [2023-11-26 11:59:15,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:15,425 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:59:15,581 WARN L240 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_ca858195-8ab3-4374-9805-c82a01f01588/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2023-11-26 11:59:15,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:15,662 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:59:15,677 WARN L240 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_ca858195-8ab3-4374-9805-c82a01f01588/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2023-11-26 11:59:15,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:15,784 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:59:15,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15 WrapperNode [2023-11-26 11:59:15,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:15,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:59:15,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:59:15,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:59:15,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:15,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:15,889 INFO L138 Inliner]: procedures = 29, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 429 [2023-11-26 11:59:15,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:59:15,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:59:15,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:59:15,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:59:15,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:15,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:15,930 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:15,969 INFO L175 MemorySlicer]: Split 115 memory accesses to 6 slices as follows [2, 6, 29, 22, 46, 10]. 40 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 3, 2, 3, 1]. The 13 writes are split as follows [0, 1, 4, 2, 4, 2]. [2023-11-26 11:59:15,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:15,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:16,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:16,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:16,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:16,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:16,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:59:16,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:59:16,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:59:16,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:59:16,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (1/1) ... [2023-11-26 11:59:16,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:16,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:16,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:59:16,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:59:16,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:59:16,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 11:59:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 11:59:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-26 11:59:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-26 11:59:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-26 11:59:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-26 11:59:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:59:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:59:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:59:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:59:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:59:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:59:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-26 11:59:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-26 11:59:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-26 11:59:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-26 11:59:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-26 11:59:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-26 11:59:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:59:16,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:59:16,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:59:16,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:59:16,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:59:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:59:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-11-26 11:59:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-11-26 11:59:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-11-26 11:59:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-11-26 11:59:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-11-26 11:59:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-11-26 11:59:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:59:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:59:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:59:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:59:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:59:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:59:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:59:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:59:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:59:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:59:16,377 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:59:16,379 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:59:16,940 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:59:16,988 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:59:16,988 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:59:16,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:16 BoogieIcfgContainer [2023-11-26 11:59:16,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:59:16,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:59:16,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:59:16,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:59:16,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:59:15" (1/3) ... [2023-11-26 11:59:16,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4b1c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:16, skipping insertion in model container [2023-11-26 11:59:16,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:15" (2/3) ... [2023-11-26 11:59:16,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4b1c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:16, skipping insertion in model container [2023-11-26 11:59:16,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:16" (3/3) ... [2023-11-26 11:59:16,999 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-18.i [2023-11-26 11:59:17,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:59:17,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:59:17,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:59:17,075 INFO L357 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, mHoare=true, 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;@57721e6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:59:17,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:59:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 82 states have (on average 1.524390243902439) internal successors, (125), 83 states have internal predecessors, (125), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-26 11:59:17,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:17,096 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:17,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:17,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1981640658, now seen corresponding path program 1 times [2023-11-26 11:59:17,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:17,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118412221] [2023-11-26 11:59:17,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:17,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:17,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:17,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118412221] [2023-11-26 11:59:17,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:59:17,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467630221] [2023-11-26 11:59:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:17,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:17,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:17,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:17,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:59:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:17,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:59:17,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:17,809 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-26 11:59:17,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:17,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467630221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:17,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:17,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:17,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117227977] [2023-11-26 11:59:17,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:17,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:59:17,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:17,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:59:17,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:59:17,855 INFO L87 Difference]: Start difference. First operand has 97 states, 82 states have (on average 1.524390243902439) internal successors, (125), 83 states have internal predecessors, (125), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:59:17,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:17,930 INFO L93 Difference]: Finished difference Result 191 states and 308 transitions. [2023-11-26 11:59:17,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:59:17,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2023-11-26 11:59:17,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:17,946 INFO L225 Difference]: With dead ends: 191 [2023-11-26 11:59:17,947 INFO L226 Difference]: Without dead ends: 95 [2023-11-26 11:59:17,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:59:17,955 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:17,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-26 11:59:18,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-11-26 11:59:18,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 81 states have (on average 1.4814814814814814) internal successors, (120), 81 states have internal predecessors, (120), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 144 transitions. [2023-11-26 11:59:18,026 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 144 transitions. Word has length 102 [2023-11-26 11:59:18,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:18,027 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 144 transitions. [2023-11-26 11:59:18,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:59:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 144 transitions. [2023-11-26 11:59:18,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-26 11:59:18,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:18,043 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:18,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:18,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 11:59:18,250 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:18,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:18,251 INFO L85 PathProgramCache]: Analyzing trace with hash 709675134, now seen corresponding path program 1 times [2023-11-26 11:59:18,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:18,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971574924] [2023-11-26 11:59:18,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:18,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:18,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:18,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971574924] [2023-11-26 11:59:18,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:59:18,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684966595] [2023-11-26 11:59:18,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:18,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:18,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:18,376 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:18,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:59:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:18,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:18,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-26 11:59:18,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:18,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684966595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:18,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:18,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:18,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423581198] [2023-11-26 11:59:18,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:18,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:18,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:18,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:18,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:18,691 INFO L87 Difference]: Start difference. First operand 95 states and 144 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:59:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:18,787 INFO L93 Difference]: Finished difference Result 195 states and 296 transitions. [2023-11-26 11:59:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:18,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2023-11-26 11:59:18,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:18,795 INFO L225 Difference]: With dead ends: 195 [2023-11-26 11:59:18,796 INFO L226 Difference]: Without dead ends: 101 [2023-11-26 11:59:18,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:18,800 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 10 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:18,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 409 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:18,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-26 11:59:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2023-11-26 11:59:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 83 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 146 transitions. [2023-11-26 11:59:18,828 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 146 transitions. Word has length 102 [2023-11-26 11:59:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:18,829 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 146 transitions. [2023-11-26 11:59:18,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:59:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 146 transitions. [2023-11-26 11:59:18,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-26 11:59:18,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:18,834 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:18,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:19,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:19,042 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:19,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1704368832, now seen corresponding path program 1 times [2023-11-26 11:59:19,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:19,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778312561] [2023-11-26 11:59:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:19,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:19,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:19,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37414714] [2023-11-26 11:59:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:19,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:19,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:19,172 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:19,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:59:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:19,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:59:19,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:19,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-26 11:59:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:19,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:19,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778312561] [2023-11-26 11:59:19,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37414714] [2023-11-26 11:59:19,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37414714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:19,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:19,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:19,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126669750] [2023-11-26 11:59:19,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:19,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:19,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:19,565 INFO L87 Difference]: Start difference. First operand 97 states and 146 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:19,887 INFO L93 Difference]: Finished difference Result 287 states and 432 transitions. [2023-11-26 11:59:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:19,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 102 [2023-11-26 11:59:19,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:19,891 INFO L225 Difference]: With dead ends: 287 [2023-11-26 11:59:19,891 INFO L226 Difference]: Without dead ends: 191 [2023-11-26 11:59:19,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:19,894 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 181 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:19,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 632 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:59:19,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-26 11:59:19,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 186. [2023-11-26 11:59:19,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 159 states have (on average 1.4528301886792452) internal successors, (231), 159 states have internal predecessors, (231), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:19,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 279 transitions. [2023-11-26 11:59:19,919 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 279 transitions. Word has length 102 [2023-11-26 11:59:19,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:19,921 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 279 transitions. [2023-11-26 11:59:19,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:19,921 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 279 transitions. [2023-11-26 11:59:19,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-26 11:59:19,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:19,923 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:19,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:20,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:20,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:20,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:20,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1889533886, now seen corresponding path program 1 times [2023-11-26 11:59:20,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:20,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505109082] [2023-11-26 11:59:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:20,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:20,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:20,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552591990] [2023-11-26 11:59:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:20,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:20,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:20,206 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:20,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:59:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:20,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:59:20,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:20,935 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 23 treesize of output 11 [2023-11-26 11:59:21,016 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 23 treesize of output 11 [2023-11-26 11:59:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:21,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:21,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:21,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505109082] [2023-11-26 11:59:21,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:21,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552591990] [2023-11-26 11:59:21,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552591990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:21,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:21,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:59:21,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036868021] [2023-11-26 11:59:21,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:21,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:21,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:21,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:21,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:21,152 INFO L87 Difference]: Start difference. First operand 186 states and 279 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:21,347 INFO L93 Difference]: Finished difference Result 467 states and 702 transitions. [2023-11-26 11:59:21,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:21,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 102 [2023-11-26 11:59:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:21,357 INFO L225 Difference]: With dead ends: 467 [2023-11-26 11:59:21,358 INFO L226 Difference]: Without dead ends: 282 [2023-11-26 11:59:21,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:21,367 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 95 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:21,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 337 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-26 11:59:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 277. [2023-11-26 11:59:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 237 states have (on average 1.4556962025316456) internal successors, (345), 237 states have internal predecessors, (345), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 11:59:21,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 417 transitions. [2023-11-26 11:59:21,439 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 417 transitions. Word has length 102 [2023-11-26 11:59:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:21,441 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 417 transitions. [2023-11-26 11:59:21,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:21,442 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 417 transitions. [2023-11-26 11:59:21,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:59:21,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:21,445 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:21,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:21,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:21,653 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:21,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:21,653 INFO L85 PathProgramCache]: Analyzing trace with hash 47503436, now seen corresponding path program 1 times [2023-11-26 11:59:21,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:21,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337371959] [2023-11-26 11:59:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:21,719 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:21,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90975063] [2023-11-26 11:59:21,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:21,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:21,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:21,725 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:21,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:59:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:21,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:59:21,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:22,008 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 10 [2023-11-26 11:59:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:22,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:22,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337371959] [2023-11-26 11:59:22,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:22,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90975063] [2023-11-26 11:59:22,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90975063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:22,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:22,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:22,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178285918] [2023-11-26 11:59:22,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:22,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:22,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:22,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:22,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:22,029 INFO L87 Difference]: Start difference. First operand 277 states and 417 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:22,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:22,375 INFO L93 Difference]: Finished difference Result 593 states and 894 transitions. [2023-11-26 11:59:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:22,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-26 11:59:22,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:22,384 INFO L225 Difference]: With dead ends: 593 [2023-11-26 11:59:22,384 INFO L226 Difference]: Without dead ends: 317 [2023-11-26 11:59:22,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:22,389 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 226 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:22,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 511 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:59:22,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-26 11:59:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 196. [2023-11-26 11:59:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 169 states have (on average 1.455621301775148) internal successors, (246), 169 states have internal predecessors, (246), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 294 transitions. [2023-11-26 11:59:22,432 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 294 transitions. Word has length 103 [2023-11-26 11:59:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:22,433 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 294 transitions. [2023-11-26 11:59:22,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 294 transitions. [2023-11-26 11:59:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:59:22,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:22,438 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:22,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-26 11:59:22,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:22,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:22,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:22,647 INFO L85 PathProgramCache]: Analyzing trace with hash 421811575, now seen corresponding path program 1 times [2023-11-26 11:59:22,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:22,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737726349] [2023-11-26 11:59:22,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:22,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:22,710 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:22,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231928286] [2023-11-26 11:59:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:22,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:22,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:22,712 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:22,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:59:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:22,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-26 11:59:22,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:22,979 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 [2023-11-26 11:59:23,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2023-11-26 11:59:23,275 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 [2023-11-26 11:59:23,304 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 10 [2023-11-26 11:59:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-26 11:59:23,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:23,807 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-26 11:59:23,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:23,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737726349] [2023-11-26 11:59:23,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:23,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231928286] [2023-11-26 11:59:23,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231928286] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:23,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:23,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-11-26 11:59:23,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746283387] [2023-11-26 11:59:23,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:23,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-26 11:59:23,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:23,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-26 11:59:23,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-11-26 11:59:23,814 INFO L87 Difference]: Start difference. First operand 196 states and 294 transitions. Second operand has 19 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 5 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-26 11:59:25,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:25,508 INFO L93 Difference]: Finished difference Result 634 states and 936 transitions. [2023-11-26 11:59:25,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-26 11:59:25,510 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 5 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 103 [2023-11-26 11:59:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:25,514 INFO L225 Difference]: With dead ends: 634 [2023-11-26 11:59:25,514 INFO L226 Difference]: Without dead ends: 439 [2023-11-26 11:59:25,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=371, Invalid=1435, Unknown=0, NotChecked=0, Total=1806 [2023-11-26 11:59:25,517 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 819 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:25,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 1458 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:59:25,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-11-26 11:59:25,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 211. [2023-11-26 11:59:25,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 182 states have (on average 1.4285714285714286) internal successors, (260), 182 states have internal predecessors, (260), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:25,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 308 transitions. [2023-11-26 11:59:25,562 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 308 transitions. Word has length 103 [2023-11-26 11:59:25,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:25,563 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 308 transitions. [2023-11-26 11:59:25,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 5 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-26 11:59:25,563 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 308 transitions. [2023-11-26 11:59:25,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:59:25,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:25,565 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:25,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:25,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 11:59:25,773 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:25,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1442879929, now seen corresponding path program 1 times [2023-11-26 11:59:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:25,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417266418] [2023-11-26 11:59:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:25,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:25,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1070423856] [2023-11-26 11:59:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:25,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:25,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:25,816 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:25,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:59:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:26,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:59:26,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:26,085 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 7 [2023-11-26 11:59:26,103 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:26,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:26,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:26,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417266418] [2023-11-26 11:59:26,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:26,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070423856] [2023-11-26 11:59:26,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070423856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:26,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:26,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:26,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330452919] [2023-11-26 11:59:26,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:26,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:26,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:26,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:26,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:26,108 INFO L87 Difference]: Start difference. First operand 211 states and 308 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:26,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:26,175 INFO L93 Difference]: Finished difference Result 419 states and 612 transitions. [2023-11-26 11:59:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:26,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-26 11:59:26,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:26,178 INFO L225 Difference]: With dead ends: 419 [2023-11-26 11:59:26,179 INFO L226 Difference]: Without dead ends: 208 [2023-11-26 11:59:26,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:26,181 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 12 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:26,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 391 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:26,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-26 11:59:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2023-11-26 11:59:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 178 states have (on average 1.4213483146067416) internal successors, (253), 178 states have internal predecessors, (253), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 301 transitions. [2023-11-26 11:59:26,209 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 301 transitions. Word has length 103 [2023-11-26 11:59:26,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:26,210 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 301 transitions. [2023-11-26 11:59:26,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:26,210 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 301 transitions. [2023-11-26 11:59:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-26 11:59:26,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:26,213 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:26,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:26,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 11:59:26,427 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:26,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:26,428 INFO L85 PathProgramCache]: Analyzing trace with hash 739606141, now seen corresponding path program 1 times [2023-11-26 11:59:26,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:26,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549035419] [2023-11-26 11:59:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:26,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:26,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:26,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493511891] [2023-11-26 11:59:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:26,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:26,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:26,496 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:26,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:59:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:26,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-26 11:59:26,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:26,834 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:26,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:26,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:26,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549035419] [2023-11-26 11:59:26,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:26,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493511891] [2023-11-26 11:59:26,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493511891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:26,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:26,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:26,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784022454] [2023-11-26 11:59:26,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:26,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:26,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:26,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:26,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:26,839 INFO L87 Difference]: Start difference. First operand 207 states and 301 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:26,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:26,951 INFO L93 Difference]: Finished difference Result 414 states and 602 transitions. [2023-11-26 11:59:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:26,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-26 11:59:26,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:26,955 INFO L225 Difference]: With dead ends: 414 [2023-11-26 11:59:26,955 INFO L226 Difference]: Without dead ends: 208 [2023-11-26 11:59:26,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:26,957 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 10 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:26,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 241 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:26,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-26 11:59:26,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2023-11-26 11:59:26,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 178 states have (on average 1.4101123595505618) internal successors, (251), 178 states have internal predecessors, (251), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 299 transitions. [2023-11-26 11:59:26,985 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 299 transitions. Word has length 104 [2023-11-26 11:59:26,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:26,986 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 299 transitions. [2023-11-26 11:59:26,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 299 transitions. [2023-11-26 11:59:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-26 11:59:26,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:26,989 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:27,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:27,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:27,197 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:27,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:27,198 INFO L85 PathProgramCache]: Analyzing trace with hash 453499166, now seen corresponding path program 1 times [2023-11-26 11:59:27,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:27,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23078742] [2023-11-26 11:59:27,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:27,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:27,264 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:27,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846547064] [2023-11-26 11:59:27,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:27,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:27,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:27,266 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:27,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:59:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-26 11:59:27,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:27,700 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 26 treesize of output 18 [2023-11-26 11:59:27,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 17 [2023-11-26 11:59:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:27,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:27,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:27,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23078742] [2023-11-26 11:59:27,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:27,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846547064] [2023-11-26 11:59:27,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846547064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:27,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:27,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:59:27,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447655184] [2023-11-26 11:59:27,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:27,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:59:27,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:27,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:59:27,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:59:27,818 INFO L87 Difference]: Start difference. First operand 207 states and 299 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:28,993 INFO L93 Difference]: Finished difference Result 449 states and 647 transitions. [2023-11-26 11:59:28,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:59:28,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-26 11:59:28,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:28,997 INFO L225 Difference]: With dead ends: 449 [2023-11-26 11:59:28,997 INFO L226 Difference]: Without dead ends: 243 [2023-11-26 11:59:28,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:59:28,999 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 319 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:28,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1504 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:59:29,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-26 11:59:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 209. [2023-11-26 11:59:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 180 states have (on average 1.4) internal successors, (252), 180 states have internal predecessors, (252), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 300 transitions. [2023-11-26 11:59:29,025 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 300 transitions. Word has length 104 [2023-11-26 11:59:29,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:29,026 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 300 transitions. [2023-11-26 11:59:29,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 300 transitions. [2023-11-26 11:59:29,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:59:29,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:29,028 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:29,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:29,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:29,236 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:29,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash 651910752, now seen corresponding path program 1 times [2023-11-26 11:59:29,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:29,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979870718] [2023-11-26 11:59:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:29,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:29,268 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:29,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161760023] [2023-11-26 11:59:29,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:29,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:29,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:29,270 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:29,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:59:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:29,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-26 11:59:29,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:29,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:29,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:29,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979870718] [2023-11-26 11:59:29,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:29,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161760023] [2023-11-26 11:59:29,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161760023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:29,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:29,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:59:29,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016484709] [2023-11-26 11:59:29,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:29,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:29,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:29,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:29,607 INFO L87 Difference]: Start difference. First operand 209 states and 300 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:29,876 INFO L93 Difference]: Finished difference Result 451 states and 649 transitions. [2023-11-26 11:59:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:29,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-11-26 11:59:29,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:29,879 INFO L225 Difference]: With dead ends: 451 [2023-11-26 11:59:29,880 INFO L226 Difference]: Without dead ends: 243 [2023-11-26 11:59:29,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:29,881 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 223 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:29,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 453 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:29,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-26 11:59:29,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 212. [2023-11-26 11:59:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 183 states have (on average 1.3934426229508197) internal successors, (255), 183 states have internal predecessors, (255), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 303 transitions. [2023-11-26 11:59:29,905 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 303 transitions. Word has length 105 [2023-11-26 11:59:29,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:29,905 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 303 transitions. [2023-11-26 11:59:29,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:29,906 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 303 transitions. [2023-11-26 11:59:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:59:29,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:29,907 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:29,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:30,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:30,115 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:30,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:30,116 INFO L85 PathProgramCache]: Analyzing trace with hash 910076190, now seen corresponding path program 1 times [2023-11-26 11:59:30,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:30,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204113059] [2023-11-26 11:59:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:30,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:30,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:30,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937079434] [2023-11-26 11:59:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:30,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:30,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:30,151 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:30,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:59:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:59:30,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:30,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-26 11:59:30,437 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:30,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:30,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:30,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204113059] [2023-11-26 11:59:30,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:30,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937079434] [2023-11-26 11:59:30,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937079434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:30,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:30,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:30,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646630395] [2023-11-26 11:59:30,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:30,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:30,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:30,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:30,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:30,441 INFO L87 Difference]: Start difference. First operand 212 states and 303 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:30,630 INFO L93 Difference]: Finished difference Result 682 states and 980 transitions. [2023-11-26 11:59:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:30,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-11-26 11:59:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:30,634 INFO L225 Difference]: With dead ends: 682 [2023-11-26 11:59:30,634 INFO L226 Difference]: Without dead ends: 471 [2023-11-26 11:59:30,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:30,636 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 218 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:30,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 628 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:30,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-11-26 11:59:30,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 418. [2023-11-26 11:59:30,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 361 states have (on average 1.3961218836565097) internal successors, (504), 361 states have internal predecessors, (504), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-26 11:59:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 600 transitions. [2023-11-26 11:59:30,707 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 600 transitions. Word has length 105 [2023-11-26 11:59:30,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:30,707 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 600 transitions. [2023-11-26 11:59:30,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 600 transitions. [2023-11-26 11:59:30,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:59:30,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:30,709 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:30,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:30,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:30,918 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:30,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:30,919 INFO L85 PathProgramCache]: Analyzing trace with hash -674879010, now seen corresponding path program 1 times [2023-11-26 11:59:30,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:30,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288086728] [2023-11-26 11:59:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:30,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:30,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:30,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104615850] [2023-11-26 11:59:30,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:30,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:30,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:30,953 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:30,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:59:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:31,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-26 11:59:31,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:31,237 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 [2023-11-26 11:59:31,242 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 [2023-11-26 11:59:31,349 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 10 [2023-11-26 11:59:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:31,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:31,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:31,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288086728] [2023-11-26 11:59:31,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:31,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104615850] [2023-11-26 11:59:31,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104615850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:31,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:31,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:59:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497441732] [2023-11-26 11:59:31,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:31,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:59:31,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:31,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:59:31,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:31,374 INFO L87 Difference]: Start difference. First operand 418 states and 600 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:34,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-26 11:59:34,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:34,913 INFO L93 Difference]: Finished difference Result 1791 states and 2567 transitions. [2023-11-26 11:59:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-26 11:59:34,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-11-26 11:59:34,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:34,924 INFO L225 Difference]: With dead ends: 1791 [2023-11-26 11:59:34,924 INFO L226 Difference]: Without dead ends: 1368 [2023-11-26 11:59:34,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2023-11-26 11:59:34,927 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 796 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:34,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1064 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-26 11:59:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2023-11-26 11:59:35,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1332. [2023-11-26 11:59:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1175 states have (on average 1.4025531914893616) internal successors, (1648), 1181 states have internal predecessors, (1648), 132 states have call successors, (132), 24 states have call predecessors, (132), 24 states have return successors, (132), 126 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-26 11:59:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1912 transitions. [2023-11-26 11:59:35,067 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1912 transitions. Word has length 105 [2023-11-26 11:59:35,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:35,068 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 1912 transitions. [2023-11-26 11:59:35,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1912 transitions. [2023-11-26 11:59:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:59:35,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:35,072 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:35,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:35,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:35,286 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:35,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:35,286 INFO L85 PathProgramCache]: Analyzing trace with hash -680348478, now seen corresponding path program 1 times [2023-11-26 11:59:35,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:35,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512997905] [2023-11-26 11:59:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:35,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:35,319 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:35,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737772405] [2023-11-26 11:59:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:35,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:35,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:35,321 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:35,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 11:59:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:35,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:59:35,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:35,651 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 [2023-11-26 11:59:35,655 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 [2023-11-26 11:59:35,668 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:35,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:35,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:35,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512997905] [2023-11-26 11:59:35,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:35,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737772405] [2023-11-26 11:59:35,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737772405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:35,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:35,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:35,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061390599] [2023-11-26 11:59:35,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:35,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:35,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:35,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:35,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:35,674 INFO L87 Difference]: Start difference. First operand 1332 states and 1912 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:36,082 INFO L93 Difference]: Finished difference Result 3200 states and 4619 transitions. [2023-11-26 11:59:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-26 11:59:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:36,097 INFO L225 Difference]: With dead ends: 3200 [2023-11-26 11:59:36,097 INFO L226 Difference]: Without dead ends: 1869 [2023-11-26 11:59:36,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:36,101 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 220 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:36,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 413 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2023-11-26 11:59:36,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1654. [2023-11-26 11:59:36,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1455 states have (on average 1.402061855670103) internal successors, (2040), 1463 states have internal predecessors, (2040), 168 states have call successors, (168), 30 states have call predecessors, (168), 30 states have return successors, (168), 160 states have call predecessors, (168), 168 states have call successors, (168) [2023-11-26 11:59:36,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2376 transitions. [2023-11-26 11:59:36,253 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2376 transitions. Word has length 106 [2023-11-26 11:59:36,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:36,254 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 2376 transitions. [2023-11-26 11:59:36,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:36,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2376 transitions. [2023-11-26 11:59:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:59:36,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:36,257 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:36,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:36,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:36,464 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:36,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1267154492, now seen corresponding path program 1 times [2023-11-26 11:59:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667400894] [2023-11-26 11:59:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:36,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:36,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006616565] [2023-11-26 11:59:36,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:36,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:36,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:36,499 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:36,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 11:59:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:36,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-26 11:59:36,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:36,852 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 [2023-11-26 11:59:36,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-26 11:59:36,902 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:36,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:36,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:36,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667400894] [2023-11-26 11:59:36,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:36,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006616565] [2023-11-26 11:59:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006616565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:36,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:36,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:59:36,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51624404] [2023-11-26 11:59:36,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:36,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:59:36,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:36,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:59:36,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:36,909 INFO L87 Difference]: Start difference. First operand 1654 states and 2376 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:37,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:37,669 INFO L93 Difference]: Finished difference Result 3802 states and 5488 transitions. [2023-11-26 11:59:37,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:59:37,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-26 11:59:37,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:37,684 INFO L225 Difference]: With dead ends: 3802 [2023-11-26 11:59:37,684 INFO L226 Difference]: Without dead ends: 2149 [2023-11-26 11:59:37,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:59:37,689 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 389 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:37,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 590 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:59:37,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2023-11-26 11:59:37,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1654. [2023-11-26 11:59:37,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1455 states have (on average 1.3993127147766322) internal successors, (2036), 1463 states have internal predecessors, (2036), 168 states have call successors, (168), 30 states have call predecessors, (168), 30 states have return successors, (168), 160 states have call predecessors, (168), 168 states have call successors, (168) [2023-11-26 11:59:37,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2372 transitions. [2023-11-26 11:59:37,897 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2372 transitions. Word has length 106 [2023-11-26 11:59:37,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:37,898 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 2372 transitions. [2023-11-26 11:59:37,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:37,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2372 transitions. [2023-11-26 11:59:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:59:37,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:37,901 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:37,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:38,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:38,109 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:38,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:38,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1660181502, now seen corresponding path program 1 times [2023-11-26 11:59:38,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:38,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466097558] [2023-11-26 11:59:38,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:38,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:38,143 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:38,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509950601] [2023-11-26 11:59:38,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:38,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:38,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:38,145 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:38,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-26 11:59:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:38,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 11:59:38,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:38,584 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 7 [2023-11-26 11:59:38,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-26 11:59:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-26 11:59:38,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-26 11:59:38,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:38,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466097558] [2023-11-26 11:59:38,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:38,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509950601] [2023-11-26 11:59:38,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509950601] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:38,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:38,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-11-26 11:59:38,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699203534] [2023-11-26 11:59:38,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:38,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:59:38,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:59:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:59:38,902 INFO L87 Difference]: Start difference. First operand 1654 states and 2372 transitions. Second operand has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-26 11:59:43,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-26 11:59:43,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:43,978 INFO L93 Difference]: Finished difference Result 2529 states and 3609 transitions. [2023-11-26 11:59:43,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 11:59:43,979 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 106 [2023-11-26 11:59:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:43,984 INFO L225 Difference]: With dead ends: 2529 [2023-11-26 11:59:43,984 INFO L226 Difference]: Without dead ends: 851 [2023-11-26 11:59:43,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2023-11-26 11:59:43,990 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 684 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 76 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:43,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 935 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 665 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-11-26 11:59:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2023-11-26 11:59:44,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 706. [2023-11-26 11:59:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 605 states have (on average 1.3603305785123967) internal successors, (823), 605 states have internal predecessors, (823), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-26 11:59:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 991 transitions. [2023-11-26 11:59:44,059 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 991 transitions. Word has length 106 [2023-11-26 11:59:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:44,060 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 991 transitions. [2023-11-26 11:59:44,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-26 11:59:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 991 transitions. [2023-11-26 11:59:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:59:44,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:44,062 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:44,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:44,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:44,270 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:44,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:44,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1840371839, now seen corresponding path program 1 times [2023-11-26 11:59:44,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:44,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427370035] [2023-11-26 11:59:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:44,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:44,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:44,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172635612] [2023-11-26 11:59:44,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:44,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:44,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:44,301 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:44,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-26 11:59:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:44,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:59:44,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:44,628 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 10 [2023-11-26 11:59:44,651 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 [2023-11-26 11:59:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:44,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:44,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:44,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427370035] [2023-11-26 11:59:44,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:44,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172635612] [2023-11-26 11:59:44,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172635612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:44,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:44,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:59:44,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266589619] [2023-11-26 11:59:44,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:44,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:44,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:44,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:44,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:44,668 INFO L87 Difference]: Start difference. First operand 706 states and 991 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:45,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:45,107 INFO L93 Difference]: Finished difference Result 1661 states and 2332 transitions. [2023-11-26 11:59:45,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:59:45,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-26 11:59:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:45,114 INFO L225 Difference]: With dead ends: 1661 [2023-11-26 11:59:45,114 INFO L226 Difference]: Without dead ends: 956 [2023-11-26 11:59:45,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:45,117 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 223 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:45,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 733 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:59:45,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-11-26 11:59:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 402. [2023-11-26 11:59:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 344 states have (on average 1.3546511627906976) internal successors, (466), 344 states have internal predecessors, (466), 48 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-26 11:59:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 562 transitions. [2023-11-26 11:59:45,175 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 562 transitions. Word has length 106 [2023-11-26 11:59:45,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:45,176 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 562 transitions. [2023-11-26 11:59:45,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:45,176 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 562 transitions. [2023-11-26 11:59:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:59:45,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:45,178 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:45,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:45,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 11:59:45,385 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:45,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:45,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2103920588, now seen corresponding path program 1 times [2023-11-26 11:59:45,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:45,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129958983] [2023-11-26 11:59:45,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:45,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:45,417 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:45,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [114211556] [2023-11-26 11:59:45,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:45,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:45,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:45,419 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:45,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-26 11:59:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:45,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:45,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:45,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:45,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:45,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129958983] [2023-11-26 11:59:45,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:45,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114211556] [2023-11-26 11:59:45,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114211556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:45,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:45,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:45,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340695654] [2023-11-26 11:59:45,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:45,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:45,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:45,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:45,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:45,732 INFO L87 Difference]: Start difference. First operand 402 states and 562 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:45,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:45,817 INFO L93 Difference]: Finished difference Result 883 states and 1243 transitions. [2023-11-26 11:59:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:45,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-26 11:59:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:45,821 INFO L225 Difference]: With dead ends: 883 [2023-11-26 11:59:45,822 INFO L226 Difference]: Without dead ends: 482 [2023-11-26 11:59:45,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:45,824 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 72 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:45,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 553 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:45,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-26 11:59:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 414. [2023-11-26 11:59:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 356 states have (on average 1.3426966292134832) internal successors, (478), 356 states have internal predecessors, (478), 48 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-26 11:59:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 574 transitions. [2023-11-26 11:59:45,866 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 574 transitions. Word has length 106 [2023-11-26 11:59:45,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:45,867 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 574 transitions. [2023-11-26 11:59:45,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:45,867 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 574 transitions. [2023-11-26 11:59:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:59:45,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:45,869 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:45,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:46,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:46,082 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:46,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:46,083 INFO L85 PathProgramCache]: Analyzing trace with hash -330862567, now seen corresponding path program 1 times [2023-11-26 11:59:46,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:46,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172841181] [2023-11-26 11:59:46,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:46,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:46,109 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:46,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801418758] [2023-11-26 11:59:46,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:46,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:46,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:46,111 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:46,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-26 11:59:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:46,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:59:46,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:46,421 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 21 treesize of output 9 [2023-11-26 11:59:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:46,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:46,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:46,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172841181] [2023-11-26 11:59:46,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:46,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801418758] [2023-11-26 11:59:46,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801418758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:46,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:46,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:46,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403362261] [2023-11-26 11:59:46,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:46,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:46,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:46,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:46,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:46,438 INFO L87 Difference]: Start difference. First operand 414 states and 574 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:46,708 INFO L93 Difference]: Finished difference Result 831 states and 1151 transitions. [2023-11-26 11:59:46,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:46,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-26 11:59:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:46,711 INFO L225 Difference]: With dead ends: 831 [2023-11-26 11:59:46,712 INFO L226 Difference]: Without dead ends: 418 [2023-11-26 11:59:46,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:46,713 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 163 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:46,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 662 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:46,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-11-26 11:59:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 406. [2023-11-26 11:59:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 348 states have (on average 1.3333333333333333) internal successors, (464), 348 states have internal predecessors, (464), 48 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-26 11:59:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 560 transitions. [2023-11-26 11:59:46,755 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 560 transitions. Word has length 106 [2023-11-26 11:59:46,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:46,756 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 560 transitions. [2023-11-26 11:59:46,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:59:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 560 transitions. [2023-11-26 11:59:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-26 11:59:46,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:46,758 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:46,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:46,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 11:59:46,965 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:46,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:46,966 INFO L85 PathProgramCache]: Analyzing trace with hash 864246463, now seen corresponding path program 1 times [2023-11-26 11:59:46,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:46,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400239713] [2023-11-26 11:59:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:46,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:46,993 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:46,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1399774542] [2023-11-26 11:59:46,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:46,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:46,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:46,995 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:47,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-26 11:59:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:59:47,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:59:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:59:47,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:59:47,702 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:59:47,704 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:59:47,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:47,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:47,917 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:47,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:59:48,016 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-26 11:59:48,017 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-26 11:59:48,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-26 11:59:48,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-26 11:59:48,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-26 11:59:48,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-26 11:59:48,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated [2023-11-26 11:59:48,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-26 11:59:48,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-11-26 11:59:48,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated [2023-11-26 11:59:48,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-11-26 11:59:48,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-26 11:59:48,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-26 11:59:48,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-26 11:59:48,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-26 11:59:48,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-26 11:59:48,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-26 11:59:48,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-11-26 11:59:48,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-26 11:59:48,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-26 11:59:48,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-11-26 11:59:48,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-26 11:59:48,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-26 11:59:48,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-26 11:59:48,028 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-26 11:59:48,029 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-26 11:59:48,030 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-26 11:59:48,032 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-26 11:59:48,033 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-26 11:59:48,034 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-26 11:59:48,036 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated [2023-11-26 11:59:48,037 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-26 11:59:48,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 11:59:48,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-26 11:59:48,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-26 11:59:48,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-11-26 11:59:48,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem26 could not be translated [2023-11-26 11:59:48,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-26 11:59:48,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated [2023-11-26 11:59:48,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite30 could not be translated [2023-11-26 11:59:48,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite30 could not be translated [2023-11-26 11:59:48,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-11-26 11:59:48,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-26 11:59:48,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem26 could not be translated [2023-11-26 11:59:48,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-26 11:59:48,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated [2023-11-26 11:59:48,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated [2023-11-26 11:59:48,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-26 11:59:48,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-11-26 11:59:48,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-26 11:59:48,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-26 11:59:48,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-26 11:59:48,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated [2023-11-26 11:59:48,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-26 11:59:48,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet81 could not be translated [2023-11-26 11:59:48,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-11-26 11:59:48,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-26 11:59:48,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem94 could not be translated [2023-11-26 11:59:48,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated [2023-11-26 11:59:48,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-26 11:59:48,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet81 could not be translated [2023-11-26 11:59:48,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-11-26 11:59:48,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite95 could not be translated [2023-11-26 11:59:48,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-26 11:59:48,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-26 11:59:48,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated [2023-11-26 11:59:48,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite95 could not be translated [2023-11-26 11:59:48,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated [2023-11-26 11:59:48,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-26 11:59:48,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-26 11:59:48,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem94 could not be translated [2023-11-26 11:59:48,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated [2023-11-26 11:59:48,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-26 11:59:48,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-11-26 11:59:48,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short109 could not be translated [2023-11-26 11:59:48,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet81 could not be translated [2023-11-26 11:59:48,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-11-26 11:59:48,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short126 could not be translated [2023-11-26 11:59:48,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet81 could not be translated [2023-11-26 11:59:48,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem94 could not be translated [2023-11-26 11:59:48,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short109 could not be translated [2023-11-26 11:59:48,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated [2023-11-26 11:59:48,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-26 11:59:48,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-26 11:59:48,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite95 could not be translated [2023-11-26 11:59:48,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated [2023-11-26 11:59:48,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-26 11:59:48,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:59:48 BoogieIcfgContainer [2023-11-26 11:59:48,076 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:59:48,077 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:59:48,077 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:59:48,077 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:59:48,077 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:16" (3/4) ... [2023-11-26 11:59:48,085 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:59:48,086 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:59:48,087 INFO L158 Benchmark]: Toolchain (without parser) took 32706.01ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 113.3MB in the beginning and 144.2MB in the end (delta: -30.9MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. [2023-11-26 11:59:48,088 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:59:48,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.47ms. Allocated memory is still 146.8MB. Free memory was 113.3MB in the beginning and 99.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 11:59:48,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.52ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 94.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:59:48,089 INFO L158 Benchmark]: Boogie Preprocessor took 192.64ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 111.9MB in the end (delta: -17.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:59:48,090 INFO L158 Benchmark]: RCFGBuilder took 903.87ms. Allocated memory is still 146.8MB. Free memory was 111.2MB in the beginning and 75.6MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-26 11:59:48,091 INFO L158 Benchmark]: TraceAbstraction took 31084.41ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 75.0MB in the beginning and 145.3MB in the end (delta: -70.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-26 11:59:48,092 INFO L158 Benchmark]: Witness Printer took 10.09ms. Allocated memory is still 255.9MB. Free memory was 145.3MB in the beginning and 144.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:59:48,101 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.47ms. Allocated memory is still 146.8MB. Free memory was 113.3MB in the beginning and 99.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.52ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 94.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 192.64ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 111.9MB in the end (delta: -17.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 903.87ms. Allocated memory is still 146.8MB. Free memory was 111.2MB in the beginning and 75.6MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 31084.41ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 75.0MB in the beginning and 145.3MB in the end (delta: -70.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 10.09ms. Allocated memory is still 255.9MB. Free memory was 145.3MB in the beginning and 144.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem94 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite95 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite95 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem94 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short109 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short126 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem94 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short109 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite95 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 someBinaryFLOATComparisonOperation at line 94, overapproximation of bitwiseOr at line 94, overapproximation of bitwiseAnd at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 5, 18477 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 5, 18477 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 5, 18477 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 256 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 256 }; [L37] unsigned char last_1_unsigned_char_Array_0_2_ = 16; [L38] unsigned long int last_1_unsigned_long_int_Array_0_0_ = 256; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] CALL updateLastVariables() [L90] EXPR unsigned_char_Array_0[2] [L90] last_1_unsigned_char_Array_0_2_ = unsigned_char_Array_0[2] [L91] EXPR unsigned_long_int_Array_0[0] [L91] last_1_unsigned_long_int_Array_0_0_ = unsigned_long_int_Array_0[0] [L101] RET updateLastVariables() [L102] CALL updateVariables() [L69] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L70] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L72] float_Array_0[0] = __VERIFIER_nondet_float() [L73] EXPR float_Array_0[0] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L73] EXPR float_Array_0[0] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L74] float_Array_0[1] = __VERIFIER_nondet_float() [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L76] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L77] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L77] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L79] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L80] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L83] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L85] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L86] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L86] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L86] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, cond=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L102] RET updateVariables() [L103] CALL step() [L42] EXPR signed_short_int_Array_0[0] [L42] signed short int stepLocal_3 = signed_short_int_Array_0[0]; [L43] unsigned long int stepLocal_2 = last_1_unsigned_long_int_Array_0_0_; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, stepLocal_2=256, stepLocal_3=256, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L44] COND FALSE !(last_1_unsigned_long_int_Array_0_0_ > stepLocal_3) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] EXPR unsigned_char_Array_0[2] [L51] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] EXPR unsigned_char_Array_0[2] & signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, stepLocal_2=256, stepLocal_3=256, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] EXPR unsigned_char_Array_0[0] [L51] EXPR unsigned_char_Array_0[2] [L51] EXPR unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] COND FALSE !((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) [L56] EXPR signed_short_int_Array_0[1] [L56] unsigned_long_int_Array_0[0] = signed_short_int_Array_0[1] [L58] EXPR unsigned_char_Array_0[2] [L58] unsigned char stepLocal_1 = unsigned_char_Array_0[2]; [L59] EXPR unsigned_char_Array_0[2] [L59] EXPR unsigned_char_Array_0[2] [L59] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L59] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L59] EXPR unsigned_long_int_Array_0[0] [L59] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L59] EXPR unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L59] unsigned long int stepLocal_0 = unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))); [L60] EXPR unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L60] COND FALSE !(stepLocal_0 != unsigned_char_Array_0[2]) [L65] float_Array_0[2] = 10.5f VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L103] RET step() [L104] CALL, EXPR property() [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L94] EXPR unsigned_long_int_Array_0[0] [L94] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR ((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f)) [L94] EXPR float_Array_0[2] [L94] EXPR ((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR (((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR (((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94-L95] return ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.9s, OverallIterations: 19, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 4668 SdHoareTripleChecker+Valid, 12.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4660 mSDsluCounter, 11654 SdHoareTripleChecker+Invalid, 11.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8873 mSDsCounter, 341 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4562 IncrementalHoareTripleChecker+Invalid, 4904 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 341 mSolverCounterUnsat, 2781 mSDtfsCounter, 4562 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2161 GetRequests, 1987 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1654occurred in iteration=13, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 2008 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 2187 NumberOfCodeBlocks, 2187 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2065 ConstructedInterpolants, 0 QuantifiedInterpolants, 5810 SizeOfPredicates, 139 NumberOfNonLiveVariables, 7123 ConjunctsInSsa, 249 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 5220/5280 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 [2023-11-26 11:59:48,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme --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 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:50,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:50,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:59:50,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:50,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:50,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:50,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:50,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:50,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:50,816 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:50,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:50,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:50,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:50,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:50,820 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:50,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:50,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:59:50,821 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:59:50,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:59:50,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:50,823 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:59:50,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:50,824 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:59:50,824 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:59:50,824 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:59:50,825 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:59:50,825 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:59:50,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:59:50,826 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:50,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:50,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:50,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:50,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:50,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:50,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:50,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:50,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:59:50,831 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:59:50,831 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:59:50,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:50,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:50,832 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:59:50,832 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:50,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:50,833 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:59:50,833 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_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 [2023-11-26 11:59:51,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:51,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:51,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:51,278 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:51,280 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:51,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2023-11-26 11:59:54,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:59:54,606 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:59:54,607 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2023-11-26 11:59:54,616 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/data/56654f506/883b2cc4f05b4f519c2a6f70035987cd/FLAGb2f8850b6 [2023-11-26 11:59:54,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/data/56654f506/883b2cc4f05b4f519c2a6f70035987cd [2023-11-26 11:59:54,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:59:54,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:59:54,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:54,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:59:54,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:59:54,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:54" (1/1) ... [2023-11-26 11:59:54,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761f72cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:54, skipping insertion in model container [2023-11-26 11:59:54,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:54" (1/1) ... [2023-11-26 11:59:54,677 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:59:54,850 WARN L240 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_ca858195-8ab3-4374-9805-c82a01f01588/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2023-11-26 11:59:54,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:55,000 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:59:55,020 WARN L240 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_ca858195-8ab3-4374-9805-c82a01f01588/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2023-11-26 11:59:55,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:55,117 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:59:55,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55 WrapperNode [2023-11-26 11:59:55,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:55,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:59:55,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:59:55,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:59:55,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,185 INFO L138 Inliner]: procedures = 36, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 390 [2023-11-26 11:59:55,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:59:55,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:59:55,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:59:55,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:59:55,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,232 INFO L175 MemorySlicer]: Split 115 memory accesses to 6 slices as follows [2, 6, 29, 22, 46, 10]. 40 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 3, 2, 3, 1]. The 13 writes are split as follows [0, 1, 4, 2, 4, 2]. [2023-11-26 11:59:55,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:59:55,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:59:55,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:59:55,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:59:55,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (1/1) ... [2023-11-26 11:59:55,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:55,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:55,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:59:55,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:59:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:59:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-26 11:59:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-26 11:59:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-26 11:59:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-26 11:59:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-26 11:59:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-11-26 11:59:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-11-26 11:59:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-11-26 11:59:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-11-26 11:59:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-11-26 11:59:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-11-26 11:59:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-11-26 11:59:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:59:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 11:59:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 11:59:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 11:59:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-26 11:59:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-26 11:59:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-11-26 11:59:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-11-26 11:59:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-11-26 11:59:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-11-26 11:59:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-11-26 11:59:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-11-26 11:59:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-26 11:59:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-26 11:59:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-26 11:59:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-26 11:59:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-11-26 11:59:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-11-26 11:59:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 11:59:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 11:59:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 11:59:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 11:59:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-26 11:59:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-26 11:59:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-11-26 11:59:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-11-26 11:59:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-11-26 11:59:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-11-26 11:59:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-11-26 11:59:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-11-26 11:59:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-26 11:59:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-26 11:59:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-26 11:59:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-26 11:59:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-11-26 11:59:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-11-26 11:59:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-11-26 11:59:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-11-26 11:59:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-11-26 11:59:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-11-26 11:59:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-11-26 11:59:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-11-26 11:59:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:59:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:59:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:59:55,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:59:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-11-26 11:59:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-11-26 11:59:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-11-26 11:59:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-11-26 11:59:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-11-26 11:59:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-11-26 11:59:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-11-26 11:59:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-11-26 11:59:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-11-26 11:59:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-11-26 11:59:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-11-26 11:59:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-11-26 11:59:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 11:59:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 11:59:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 11:59:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 11:59:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-26 11:59:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-26 11:59:55,728 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:59:55,731 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:59:56,980 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:59:57,048 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:59:57,048 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:59:57,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:57 BoogieIcfgContainer [2023-11-26 11:59:57,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:59:57,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:59:57,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:59:57,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:59:57,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:59:54" (1/3) ... [2023-11-26 11:59:57,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c2c8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:57, skipping insertion in model container [2023-11-26 11:59:57,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:55" (2/3) ... [2023-11-26 11:59:57,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c2c8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:57, skipping insertion in model container [2023-11-26 11:59:57,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:57" (3/3) ... [2023-11-26 11:59:57,058 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-18.i [2023-11-26 11:59:57,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:59:57,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:59:57,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:59:57,143 INFO L357 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, mHoare=true, 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;@17222849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:59:57,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:59:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-26 11:59:57,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:57,164 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:57,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:57,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:57,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1840276238, now seen corresponding path program 1 times [2023-11-26 11:59:57,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:59:57,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928742574] [2023-11-26 11:59:57,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:57,193 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 [2023-11-26 11:59:57,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:59:57,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 11:59:57,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:59:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:57,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:59:57,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-26 11:59:57,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:57,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:59:57,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928742574] [2023-11-26 11:59:57,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928742574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:57,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:57,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:57,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749823602] [2023-11-26 11:59:57,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:57,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:59:57,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:59:57,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:59:57,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:59:57,712 INFO L87 Difference]: Start difference. First operand has 85 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:59:57,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:57,792 INFO L93 Difference]: Finished difference Result 167 states and 264 transitions. [2023-11-26 11:59:57,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:59:57,796 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-11-26 11:59:57,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:57,806 INFO L225 Difference]: With dead ends: 167 [2023-11-26 11:59:57,807 INFO L226 Difference]: Without dead ends: 83 [2023-11-26 11:59:57,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:59:57,816 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:57,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-26 11:59:57,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-26 11:59:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 69 states have internal predecessors, (98), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 122 transitions. [2023-11-26 11:59:57,883 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 122 transitions. Word has length 98 [2023-11-26 11:59:57,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:57,889 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 122 transitions. [2023-11-26 11:59:57,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:59:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 122 transitions. [2023-11-26 11:59:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-26 11:59:57,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:57,900 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:57,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:58,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:59:58,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:58,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:58,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1929259934, now seen corresponding path program 1 times [2023-11-26 11:59:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:59:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279608422] [2023-11-26 11:59:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:58,111 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 [2023-11-26 11:59:58,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:59:58,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 11:59:58,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:59:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:58,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:58,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-26 11:59:58,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:58,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:59:58,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279608422] [2023-11-26 11:59:58,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279608422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:58,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:58,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:58,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474049188] [2023-11-26 11:59:58,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:58,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:58,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:59:58,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:58,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:58,520 INFO L87 Difference]: Start difference. First operand 83 states and 122 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:59:58,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:58,617 INFO L93 Difference]: Finished difference Result 171 states and 252 transitions. [2023-11-26 11:59:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:58,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-11-26 11:59:58,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:58,620 INFO L225 Difference]: With dead ends: 171 [2023-11-26 11:59:58,620 INFO L226 Difference]: Without dead ends: 89 [2023-11-26 11:59:58,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:58,623 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 10 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:58,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:58,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-26 11:59:58,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2023-11-26 11:59:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2023-11-26 11:59:58,636 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 98 [2023-11-26 11:59:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:58,637 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2023-11-26 11:59:58,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:59:58,637 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2023-11-26 11:59:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-26 11:59:58,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:58,640 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:58,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:58,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:59:58,846 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:58,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:58,847 INFO L85 PathProgramCache]: Analyzing trace with hash -486576416, now seen corresponding path program 1 times [2023-11-26 11:59:58,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:59:58,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699318345] [2023-11-26 11:59:58,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:58,848 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 [2023-11-26 11:59:58,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:59:58,851 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 11:59:58,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:59:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:59,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:59:59,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:59,521 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 31 treesize of output 19 [2023-11-26 11:59:59,533 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 [2023-11-26 11:59:59,621 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 [2023-11-26 11:59:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-26 11:59:59,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:59,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:59:59,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699318345] [2023-11-26 11:59:59,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699318345] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:59,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [592422700] [2023-11-26 11:59:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:59,947 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-26 11:59:59,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/cvc4 [2023-11-26 11:59:59,956 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-26 11:59:59,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca858195-8ab3-4374-9805-c82a01f01588/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-26 12:00:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:00,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 12:00:00,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:00,845 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 12 treesize of output 8 [2023-11-26 12:00:01,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-26 12:00:01,733 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 31 treesize of output 19 [2023-11-26 12:00:01,788 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 [2023-11-26 12:00:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-26 12:00:01,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:01,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [592422700] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:01,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:00:01,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2023-11-26 12:00:01,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567497619] [2023-11-26 12:00:01,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:01,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 12:00:01,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:01,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 12:00:01,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-11-26 12:00:01,851 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 14 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24)