./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl --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 81c7729345d5d6e6cfdedd64c331a4f8f6005773af2c566c0c24cc964b2ec390 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:20:26,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:20:26,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:20:26,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:20:26,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:20:26,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:20:26,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:20:26,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:20:26,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:20:26,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:20:26,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:20:26,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:20:26,202 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:20:26,204 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:20:26,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:20:26,204 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:20:26,205 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:20:26,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:20:26,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:20:26,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:20:26,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:20:26,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:20:26,208 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:20:26,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:20:26,208 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:20:26,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:20:26,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:20:26,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:20:26,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:26,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:20:26,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:20:26,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:20:26,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:20:26,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:20:26,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:20:26,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:20:26,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:20:26,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:20:26,215 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:20:26,215 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_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81c7729345d5d6e6cfdedd64c331a4f8f6005773af2c566c0c24cc964b2ec390 [2023-11-12 02:20:26,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:20:26,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:20:26,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:20:26,543 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:20:26,544 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:20:26,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i [2023-11-12 02:20:29,629 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:20:29,846 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:20:29,847 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i [2023-11-12 02:20:29,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/data/0bed4bfe6/f8ccdf9190a9455f85adb597bd736ff1/FLAGb518b08b7 [2023-11-12 02:20:29,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/data/0bed4bfe6/f8ccdf9190a9455f85adb597bd736ff1 [2023-11-12 02:20:29,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:20:29,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:20:29,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:29,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:20:29,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:20:29,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:29" (1/1) ... [2023-11-12 02:20:29,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532516a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:29, skipping insertion in model container [2023-11-12 02:20:29,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:29" (1/1) ... [2023-11-12 02:20:29,921 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:20:30,056 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_0cc7fbd2-2940-4927-b072-e2f530737df7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i[916,929] [2023-11-12 02:20:30,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:30,131 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:20:30,142 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_0cc7fbd2-2940-4927-b072-e2f530737df7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i[916,929] [2023-11-12 02:20:30,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:30,204 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:20:30,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30 WrapperNode [2023-11-12 02:20:30,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:30,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:30,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:20:30,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:20:30,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,283 INFO L138 Inliner]: procedures = 26, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 407 [2023-11-12 02:20:30,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:30,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:20:30,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:20:30,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:20:30,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:20:30,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:20:30,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:20:30,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:20:30,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (1/1) ... [2023-11-12 02:20:30,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:30,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:30,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:20:30,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:20:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:20:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:20:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:20:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:20:30,427 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:20:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:20:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:20:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:20:30,590 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:20:30,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:20:31,230 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:20:31,238 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:20:31,238 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:20:31,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:31 BoogieIcfgContainer [2023-11-12 02:20:31,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:20:31,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:20:31,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:20:31,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:20:31,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:20:29" (1/3) ... [2023-11-12 02:20:31,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cae97c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:31, skipping insertion in model container [2023-11-12 02:20:31,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:30" (2/3) ... [2023-11-12 02:20:31,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cae97c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:31, skipping insertion in model container [2023-11-12 02:20:31,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:31" (3/3) ... [2023-11-12 02:20:31,257 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-19.i [2023-11-12 02:20:31,280 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:20:31,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:20:31,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:20:31,359 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;@6a2ae058, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:20:31,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:20:31,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 80 states have (on average 1.4) internal successors, (112), 81 states have internal predecessors, (112), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:20:31,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-12 02:20:31,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:31,380 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:31,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:31,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash 504218985, now seen corresponding path program 1 times [2023-11-12 02:20:31,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:31,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432903570] [2023-11-12 02:20:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:31,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:31,649 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:31,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262651699] [2023-11-12 02:20:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:31,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:31,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:31,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:31,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:20:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:31,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:20:31,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:20:32,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:32,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:32,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432903570] [2023-11-12 02:20:32,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:32,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262651699] [2023-11-12 02:20:32,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262651699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:32,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:32,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:32,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898864204] [2023-11-12 02:20:32,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:32,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:20:32,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:32,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:20:32,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:20:32,128 INFO L87 Difference]: Start difference. First operand has 100 states, 80 states have (on average 1.4) internal successors, (112), 81 states have internal predecessors, (112), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:20:32,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:32,208 INFO L93 Difference]: Finished difference Result 197 states and 308 transitions. [2023-11-12 02:20:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:20:32,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-11-12 02:20:32,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:32,222 INFO L225 Difference]: With dead ends: 197 [2023-11-12 02:20:32,222 INFO L226 Difference]: Without dead ends: 100 [2023-11-12 02:20:32,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:32,231 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 3 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:32,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 394 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:20:32,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-12 02:20:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2023-11-12 02:20:32,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:20:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions. [2023-11-12 02:20:32,290 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 132 [2023-11-12 02:20:32,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:32,292 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 139 transitions. [2023-11-12 02:20:32,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:20:32,292 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions. [2023-11-12 02:20:32,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-12 02:20:32,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:32,296 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:32,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 02:20:32,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:20:32,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:32,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:32,503 INFO L85 PathProgramCache]: Analyzing trace with hash 506066027, now seen corresponding path program 1 times [2023-11-12 02:20:32,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:32,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395398366] [2023-11-12 02:20:32,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:32,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:32,597 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:32,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039697216] [2023-11-12 02:20:32,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:32,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:32,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:32,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:32,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:20:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:32,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-12 02:20:32,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:33,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:33,491 INFO L351 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 73 treesize of output 45 [2023-11-12 02:20:33,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:33,764 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 83 [2023-11-12 02:20:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-12 02:20:33,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:34,077 INFO L351 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 232 treesize of output 196 [2023-11-12 02:20:34,253 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:20:34,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:34,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395398366] [2023-11-12 02:20:34,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:34,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039697216] [2023-11-12 02:20:34,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039697216] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 02:20:34,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:20:34,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-12 02:20:34,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308775211] [2023-11-12 02:20:34,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:34,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:20:34,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:20:34,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:20:34,259 INFO L87 Difference]: Start difference. First operand 98 states and 139 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:20:34,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:34,802 INFO L93 Difference]: Finished difference Result 275 states and 387 transitions. [2023-11-12 02:20:34,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:20:34,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-11-12 02:20:34,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:34,807 INFO L225 Difference]: With dead ends: 275 [2023-11-12 02:20:34,807 INFO L226 Difference]: Without dead ends: 180 [2023-11-12 02:20:34,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:20:34,810 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 182 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:34,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 627 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:20:34,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-12 02:20:34,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 106. [2023-11-12 02:20:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3333333333333333) internal successors, (116), 87 states have internal predecessors, (116), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:20:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 150 transitions. [2023-11-12 02:20:34,827 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 150 transitions. Word has length 132 [2023-11-12 02:20:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:34,828 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 150 transitions. [2023-11-12 02:20:34,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:20:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 150 transitions. [2023-11-12 02:20:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-12 02:20:34,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:34,832 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:34,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:35,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:35,039 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:35,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:35,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1082281875, now seen corresponding path program 1 times [2023-11-12 02:20:35,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:35,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879967190] [2023-11-12 02:20:35,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:35,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:35,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:35,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922319065] [2023-11-12 02:20:35,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:35,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:35,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:35,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:35,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:20:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:35,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:20:35,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:35,387 INFO L351 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 [2023-11-12 02:20:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:20:35,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:35,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:35,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879967190] [2023-11-12 02:20:35,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:35,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922319065] [2023-11-12 02:20:35,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922319065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:35,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:35,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:20:35,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670435573] [2023-11-12 02:20:35,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:35,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:20:35,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:35,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:20:35,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:35,408 INFO L87 Difference]: Start difference. First operand 106 states and 150 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:20:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:35,712 INFO L93 Difference]: Finished difference Result 291 states and 407 transitions. [2023-11-12 02:20:35,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:20:35,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-11-12 02:20:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:35,716 INFO L225 Difference]: With dead ends: 291 [2023-11-12 02:20:35,716 INFO L226 Difference]: Without dead ends: 188 [2023-11-12 02:20:35,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:20:35,718 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 85 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:35,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 553 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:20:35,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-12 02:20:35,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 111. [2023-11-12 02:20:35,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 92 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:20:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 157 transitions. [2023-11-12 02:20:35,746 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 157 transitions. Word has length 132 [2023-11-12 02:20:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:35,747 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 157 transitions. [2023-11-12 02:20:35,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:20:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2023-11-12 02:20:35,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-12 02:20:35,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:35,750 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:35,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:35,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:35,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:35,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:35,959 INFO L85 PathProgramCache]: Analyzing trace with hash -253394688, now seen corresponding path program 1 times [2023-11-12 02:20:35,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:35,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778300947] [2023-11-12 02:20:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:35,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:36,031 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:36,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2007743248] [2023-11-12 02:20:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:36,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:36,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:36,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:36,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:20:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:36,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-12 02:20:36,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:36,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:36,919 INFO L351 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 19 treesize of output 19 [2023-11-12 02:20:37,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:37,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:37,157 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 02:20:37,157 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 42 [2023-11-12 02:20:37,165 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 9 [2023-11-12 02:20:37,386 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:20:37,386 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 51 [2023-11-12 02:20:37,458 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:20:37,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:37,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:37,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778300947] [2023-11-12 02:20:37,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:37,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007743248] [2023-11-12 02:20:37,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007743248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:37,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:37,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 02:20:37,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340781471] [2023-11-12 02:20:37,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:37,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:20:37,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:37,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:20:37,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:20:37,462 INFO L87 Difference]: Start difference. First operand 111 states and 157 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:20:41,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:41,030 INFO L93 Difference]: Finished difference Result 339 states and 471 transitions. [2023-11-12 02:20:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:20:41,032 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2023-11-12 02:20:41,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:41,034 INFO L225 Difference]: With dead ends: 339 [2023-11-12 02:20:41,035 INFO L226 Difference]: Without dead ends: 231 [2023-11-12 02:20:41,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:20:41,037 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 353 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:41,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 623 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-12 02:20:41,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-12 02:20:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 123. [2023-11-12 02:20:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.3461538461538463) internal successors, (140), 104 states have internal predecessors, (140), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:20:41,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 174 transitions. [2023-11-12 02:20:41,067 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 174 transitions. Word has length 133 [2023-11-12 02:20:41,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:41,068 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 174 transitions. [2023-11-12 02:20:41,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:20:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 174 transitions. [2023-11-12 02:20:41,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-12 02:20:41,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:41,071 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:41,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:41,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:41,278 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:41,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1071043138, now seen corresponding path program 1 times [2023-11-12 02:20:41,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:41,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109275207] [2023-11-12 02:20:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:41,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:41,339 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:41,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558549613] [2023-11-12 02:20:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:41,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:41,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:41,345 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:41,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:20:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:41,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-12 02:20:41,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:41,910 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-12 02:20:42,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:42,056 INFO L351 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 16 treesize of output 11 [2023-11-12 02:20:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:42,274 INFO L351 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 16 treesize of output 11 [2023-11-12 02:20:42,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:42,428 INFO L351 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 16 treesize of output 11 [2023-11-12 02:20:42,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:42,562 INFO L351 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 16 treesize of output 11 [2023-11-12 02:20:42,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:42,678 INFO L351 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 16 treesize of output 11 [2023-11-12 02:20:42,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:42,799 INFO L351 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 16 treesize of output 11 [2023-11-12 02:20:42,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:42,815 INFO L351 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 16 treesize of output 11 [2023-11-12 02:20:42,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:42,827 INFO L351 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 16 treesize of output 11 [2023-11-12 02:20:42,861 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-12 02:20:42,880 INFO L351 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 15 treesize of output 7 [2023-11-12 02:20:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 78 proven. 320 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-12 02:20:42,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:42,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:42,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109275207] [2023-11-12 02:20:42,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:42,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558549613] [2023-11-12 02:20:42,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558549613] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:20:42,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:20:42,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-12 02:20:42,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703321744] [2023-11-12 02:20:42,979 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:42,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:20:42,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:42,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:20:42,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=112, Unknown=4, NotChecked=0, Total=156 [2023-11-12 02:20:42,981 INFO L87 Difference]: Start difference. First operand 123 states and 174 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-12 02:20:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:43,673 INFO L93 Difference]: Finished difference Result 272 states and 381 transitions. [2023-11-12 02:20:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:20:43,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 133 [2023-11-12 02:20:43,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:43,676 INFO L225 Difference]: With dead ends: 272 [2023-11-12 02:20:43,676 INFO L226 Difference]: Without dead ends: 152 [2023-11-12 02:20:43,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=239, Unknown=4, NotChecked=0, Total=342 [2023-11-12 02:20:43,678 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 485 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:43,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 250 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:20:43,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-12 02:20:43,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 127. [2023-11-12 02:20:43,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 107 states have internal predecessors, (142), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:20:43,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 176 transitions. [2023-11-12 02:20:43,694 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 176 transitions. Word has length 133 [2023-11-12 02:20:43,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:43,694 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 176 transitions. [2023-11-12 02:20:43,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-12 02:20:43,695 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 176 transitions. [2023-11-12 02:20:43,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-12 02:20:43,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:43,697 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:43,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:43,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:43,917 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:43,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:43,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1657849152, now seen corresponding path program 1 times [2023-11-12 02:20:43,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:43,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26301593] [2023-11-12 02:20:43,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:43,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:43,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:43,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609818145] [2023-11-12 02:20:43,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:43,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:43,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:43,964 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:43,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:20:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:44,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-12 02:20:44,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:44,868 INFO L351 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 29 treesize of output 13 [2023-11-12 02:20:45,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:45,200 INFO L351 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 29 treesize of output 22 [2023-11-12 02:20:45,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:45,428 INFO L351 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 29 treesize of output 22 [2023-11-12 02:20:45,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:45,728 INFO L351 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 29 treesize of output 22 [2023-11-12 02:20:45,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:45,759 INFO L351 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 29 treesize of output 22 [2023-11-12 02:20:45,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:45,808 INFO L351 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 29 treesize of output 22 [2023-11-12 02:20:46,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:46,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:46,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:46,071 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 55 [2023-11-12 02:20:46,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:46,142 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:20:46,142 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 39 [2023-11-12 02:20:46,189 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 30 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-12 02:20:46,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:20:46,303 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_307 (Array Int Int))) (not (let ((.cse0 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_307) |c_~#unsigned_char_Array_0~0.base|))) (= (mod (select .cse0 (+ |c_~#unsigned_char_Array_0~0.offset| 1)) 256) (mod (select .cse0 |c_~#unsigned_char_Array_0~0.offset|) 256))))) (forall ((v_ArrVal_307 (Array Int Int))) (not (= (mod (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_307) |c_~#unsigned_long_int_Array_0~0.base|))) (+ (select .cse1 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse1 (+ |c_~#unsigned_long_int_Array_0~0.offset| 4)))) 4294967296) 0)))) is different from false [2023-11-12 02:20:46,463 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_~#unsigned_char_Array_0~0.offset| 1))) (or (let ((.cse0 (select |c_#memory_int| |c_~#unsigned_char_Array_0~0.base|))) (= (mod (select .cse0 .cse1) 256) (mod (select .cse0 |c_~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse2 (select |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base|))) (and (forall ((|~#unsigned_long_int_Array_0~0.offset| Int)) (let ((.cse3 (+ |~#unsigned_long_int_Array_0~0.offset| 4))) (or (= 0 (mod (+ (select .cse2 |~#unsigned_long_int_Array_0~0.offset|) (select .cse2 .cse3)) 4294967296)) (forall ((v_ArrVal_307 (Array Int Int))) (not (= (mod (let ((.cse4 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_307) |c_~#unsigned_long_int_Array_0~0.base|))) (+ (select .cse4 .cse3) (select .cse4 |~#unsigned_long_int_Array_0~0.offset|))) 4294967296) 0)))))) (or (forall ((|~#unsigned_long_int_Array_0~0.offset| Int)) (= 0 (mod (+ (select .cse2 |~#unsigned_long_int_Array_0~0.offset|) (select .cse2 (+ |~#unsigned_long_int_Array_0~0.offset| 4))) 4294967296))) (forall ((v_ArrVal_307 (Array Int Int))) (not (let ((.cse5 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_307) |c_~#unsigned_char_Array_0~0.base|))) (= (mod (select .cse5 .cse1) 256) (mod (select .cse5 |c_~#unsigned_char_Array_0~0.offset|) 256)))))))))) is different from false [2023-11-12 02:20:46,519 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_~#unsigned_char_Array_0~0.offset| 1))) (and (forall ((v_ArrVal_306 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_306))) (or (let ((.cse0 (select .cse2 |c_~#unsigned_char_Array_0~0.base|))) (= (mod (select .cse0 |c_~#unsigned_char_Array_0~0.offset|) 256) (mod (select .cse0 .cse1) 256))) (forall ((v_ArrVal_307 (Array Int Int))) (not (let ((.cse3 (select (store .cse2 |c_~#signed_char_Array_0~0.base| v_ArrVal_307) |c_~#unsigned_char_Array_0~0.base|))) (= (mod (select .cse3 .cse1) 256) (mod (select .cse3 |c_~#unsigned_char_Array_0~0.offset|) 256))))) (forall ((|~#unsigned_long_int_Array_0~0.offset| Int)) (= (mod (let ((.cse4 (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|))) (+ (select .cse4 (+ |~#unsigned_long_int_Array_0~0.offset| 4)) (select .cse4 |~#unsigned_long_int_Array_0~0.offset|))) 4294967296) 0))))) (forall ((v_ArrVal_306 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_306))) (or (let ((.cse5 (select .cse6 |c_~#unsigned_char_Array_0~0.base|))) (= (mod (select .cse5 |c_~#unsigned_char_Array_0~0.offset|) 256) (mod (select .cse5 .cse1) 256))) (forall ((|~#unsigned_long_int_Array_0~0.offset| Int)) (let ((.cse8 (+ |~#unsigned_long_int_Array_0~0.offset| 4))) (or (forall ((v_ArrVal_307 (Array Int Int))) (not (= (mod (let ((.cse7 (select (store .cse6 |c_~#signed_char_Array_0~0.base| v_ArrVal_307) |c_~#unsigned_long_int_Array_0~0.base|))) (+ (select .cse7 |~#unsigned_long_int_Array_0~0.offset|) (select .cse7 .cse8))) 4294967296) 0))) (= (mod (let ((.cse9 (select .cse6 |c_~#unsigned_long_int_Array_0~0.base|))) (+ (select .cse9 .cse8) (select .cse9 |~#unsigned_long_int_Array_0~0.offset|))) 4294967296) 0))))))))) is different from false [2023-11-12 02:20:46,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:46,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26301593] [2023-11-12 02:20:46,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:20:46,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609818145] [2023-11-12 02:20:46,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609818145] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:20:46,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:20:46,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-12 02:20:46,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618585981] [2023-11-12 02:20:46,787 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:20:46,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 02:20:46,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:46,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 02:20:46,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=284, Unknown=6, NotChecked=108, Total=462 [2023-11-12 02:20:46,789 INFO L87 Difference]: Start difference. First operand 127 states and 176 transitions. Second operand has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-12 02:20:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:48,559 INFO L93 Difference]: Finished difference Result 324 states and 443 transitions. [2023-11-12 02:20:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-12 02:20:48,560 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 133 [2023-11-12 02:20:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:48,562 INFO L225 Difference]: With dead ends: 324 [2023-11-12 02:20:48,562 INFO L226 Difference]: Without dead ends: 200 [2023-11-12 02:20:48,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=164, Invalid=712, Unknown=6, NotChecked=174, Total=1056 [2023-11-12 02:20:48,564 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 266 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:48,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 442 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 02:20:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-12 02:20:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 148. [2023-11-12 02:20:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 126 states have (on average 1.3174603174603174) internal successors, (166), 126 states have internal predecessors, (166), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:20:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 200 transitions. [2023-11-12 02:20:48,581 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 200 transitions. Word has length 133 [2023-11-12 02:20:48,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:48,582 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 200 transitions. [2023-11-12 02:20:48,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-12 02:20:48,582 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 200 transitions. [2023-11-12 02:20:48,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-12 02:20:48,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:48,584 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:48,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:48,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:20:48,801 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:48,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:48,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1616049790, now seen corresponding path program 1 times [2023-11-12 02:20:48,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:48,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301298746] [2023-11-12 02:20:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:48,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:48,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639214927] [2023-11-12 02:20:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:48,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:48,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:48,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:48,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc7fbd2-2940-4927-b072-e2f530737df7/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:20:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:56,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 113 conjunts are in the unsatisfiable core [2023-11-12 02:20:56,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:56,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:56,480 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:20:56,481 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 13 [2023-11-12 02:20:56,737 INFO L351 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 [2023-11-12 02:20:57,140 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-12 02:20:57,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:57,368 INFO L351 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 [2023-11-12 02:20:57,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:57,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:57,898 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-11-12 02:20:58,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:58,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:58,381 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2023-11-12 02:20:59,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:59,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:59,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:59,113 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2023-11-12 02:20:59,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:59,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:20:59,550 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:20:59,551 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 48 [2023-11-12 02:21:00,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:00,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:00,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:00,626 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:21:00,627 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 85 [2023-11-12 02:21:00,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:00,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:00,790 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 95 [2023-11-12 02:21:01,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:01,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:01,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:01,092 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:21:01,093 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 122 [2023-11-12 02:21:01,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:01,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:01,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:01,787 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:21:01,787 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 125 [2023-11-12 02:21:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:08,342 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:21:08,343 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 2 case distinctions, treesize of input 202 treesize of output 84 [2023-11-12 02:21:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 416 proven. 66 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-12 02:21:10,307 INFO L327 TraceCheckSpWp]: Computing backward predicates...