./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu --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 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:58,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:58,140 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:58:58,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:58,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:58,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:58,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:58,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:58,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:58,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:58,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:58,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:58,184 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:58,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:58,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:58,187 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:58,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:58,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:58,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:58,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:58,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:58,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:58,195 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:58,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:58,196 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:58,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:58,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:58,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:58,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:58,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:58,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:58,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:58,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:58,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:58,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:58,202 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:58,202 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:58,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:58,202 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:58,203 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_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab [2023-11-19 07:58:58,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:58,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:58,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:58,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:58,497 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:58,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-11-19 07:59:01,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:02,010 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:02,010 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-11-19 07:59:02,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/data/5022c03a0/6f21c463a9b449e29b2e01a079adb2a5/FLAG4a9069abd [2023-11-19 07:59:02,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/data/5022c03a0/6f21c463a9b449e29b2e01a079adb2a5 [2023-11-19 07:59:02,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:02,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:02,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:02,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:02,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:02,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@afe9c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02, skipping insertion in model container [2023-11-19 07:59:02,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,080 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:02,232 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_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2023-11-19 07:59:02,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:02,303 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:02,316 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_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2023-11-19 07:59:02,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:02,380 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:02,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02 WrapperNode [2023-11-19 07:59:02,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:02,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:02,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:02,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:02,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,466 INFO L138 Inliner]: procedures = 26, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 391 [2023-11-19 07:59:02,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:02,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:02,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:02,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:02,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,520 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:02,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:02,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:02,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:02,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:02,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:02,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:02,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:59:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:02,810 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:02,813 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:03,502 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:03,519 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:03,519 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:59:03,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:03 BoogieIcfgContainer [2023-11-19 07:59:03,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:03,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:03,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:03,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:03,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:02" (1/3) ... [2023-11-19 07:59:03,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51aac3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:03, skipping insertion in model container [2023-11-19 07:59:03,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (2/3) ... [2023-11-19 07:59:03,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51aac3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:03, skipping insertion in model container [2023-11-19 07:59:03,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:03" (3/3) ... [2023-11-19 07:59:03,543 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-89.i [2023-11-19 07:59:03,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:03,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:59:03,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:03,631 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;@401d2b7a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:03,631 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:59:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:03,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:03,651 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:03,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:03,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:03,658 INFO L85 PathProgramCache]: Analyzing trace with hash 983671971, now seen corresponding path program 1 times [2023-11-19 07:59:03,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:03,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949054440] [2023-11-19 07:59:03,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:03,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:03,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:03,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949054440] [2023-11-19 07:59:03,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:59:03,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396315404] [2023-11-19 07:59:03,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:03,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:03,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:03,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:03,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:59:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:04,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:59:04,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-19 07:59:04,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:04,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396315404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:04,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:04,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:04,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836201026] [2023-11-19 07:59:04,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:04,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:59:04,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:04,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:59:04,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:04,402 INFO L87 Difference]: Start difference. First operand has 100 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:59:04,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:04,478 INFO L93 Difference]: Finished difference Result 193 states and 303 transitions. [2023-11-19 07:59:04,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:59:04,480 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2023-11-19 07:59:04,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:04,491 INFO L225 Difference]: With dead ends: 193 [2023-11-19 07:59:04,492 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 07:59:04,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:04,503 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:04,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 07:59:04,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-19 07:59:04,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 81 states have (on average 1.3950617283950617) internal successors, (113), 81 states have internal predecessors, (113), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-11-19 07:59:04,561 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 109 [2023-11-19 07:59:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:04,562 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-11-19 07:59:04,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:59:04,562 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-11-19 07:59:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:04,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:04,567 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:04,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:04,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:59:04,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:04,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:04,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1135548361, now seen corresponding path program 1 times [2023-11-19 07:59:04,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:04,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744715382] [2023-11-19 07:59:04,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:04,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:04,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:59:04,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265842190] [2023-11-19 07:59:04,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:04,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:04,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:04,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:04,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:59:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:05,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:59:05,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-19 07:59:05,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:05,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:05,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744715382] [2023-11-19 07:59:05,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:59:05,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265842190] [2023-11-19 07:59:05,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265842190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:05,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:05,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:59:05,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974161052] [2023-11-19 07:59:05,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:05,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:05,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:05,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:05,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:05,249 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:59:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:05,338 INFO L93 Difference]: Finished difference Result 201 states and 292 transitions. [2023-11-19 07:59:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:59:05,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2023-11-19 07:59:05,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:05,347 INFO L225 Difference]: With dead ends: 201 [2023-11-19 07:59:05,348 INFO L226 Difference]: Without dead ends: 108 [2023-11-19 07:59:05,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:05,351 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 21 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:05,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 404 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:05,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-19 07:59:05,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 98. [2023-11-19 07:59:05,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 83 states have internal predecessors, (115), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:05,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-11-19 07:59:05,370 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 109 [2023-11-19 07:59:05,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:05,372 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-11-19 07:59:05,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:59:05,373 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-11-19 07:59:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:05,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:05,375 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:05,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:05,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:05,576 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:05,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:05,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1815606731, now seen corresponding path program 1 times [2023-11-19 07:59:05,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:05,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821186605] [2023-11-19 07:59:05,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:05,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:05,623 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:59:05,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839099256] [2023-11-19 07:59:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:05,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:05,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:05,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:05,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:59:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:05,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:59:05,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:05,817 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-19 07:59:05,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:05,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:05,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821186605] [2023-11-19 07:59:05,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:59:05,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839099256] [2023-11-19 07:59:05,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839099256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:05,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:05,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:59:05,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214495635] [2023-11-19 07:59:05,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:05,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:05,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:05,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:05,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:05,821 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:59:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:05,854 INFO L93 Difference]: Finished difference Result 201 states and 290 transitions. [2023-11-19 07:59:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:59:05,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2023-11-19 07:59:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:05,857 INFO L225 Difference]: With dead ends: 201 [2023-11-19 07:59:05,857 INFO L226 Difference]: Without dead ends: 106 [2023-11-19 07:59:05,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:05,860 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 12 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:05,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 402 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-19 07:59:05,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2023-11-19 07:59:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2023-11-19 07:59:05,880 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 109 [2023-11-19 07:59:05,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:05,881 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2023-11-19 07:59:05,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:59:05,882 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-11-19 07:59:05,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:05,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:05,888 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:05,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:06,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:06,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:06,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:06,105 INFO L85 PathProgramCache]: Analyzing trace with hash -704353203, now seen corresponding path program 1 times [2023-11-19 07:59:06,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:06,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495477884] [2023-11-19 07:59:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:06,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:06,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:59:06,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858371607] [2023-11-19 07:59:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:06,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:06,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:06,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:06,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:59:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:06,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-19 07:59:06,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:06,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-19 07:59:07,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-19 07:59:07,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:07,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-19 07:59:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:07,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-19 07:59:07,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:07,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-19 07:59:07,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:07,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-19 07:59:07,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-19 07:59:08,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:08,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-11-19 07:59:08,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:08,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:08,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2023-11-19 07:59:08,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:59:08,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 26 [2023-11-19 07:59:08,201 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 12 proven. 220 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-19 07:59:08,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:08,435 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 4 |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (and (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (mod (select .cse0 .cse1) 256) 0) (not (= (mod (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0))))) (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse2 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (mod (select .cse2 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0) (= (mod (select .cse2 .cse1) 256) 1)))))) is different from false [2023-11-19 07:59:08,518 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base|)) (.cse1 (+ 4 |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (and (or (let ((.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse4 .cse1 1)))) (and (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse0 (select (store (store .cse2 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= (mod (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0)) (= (mod (select .cse0 .cse1) 256) 0)))) (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse3 (select (store (store .cse2 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (mod (select .cse3 .cse1) 256) 1) (= (mod (select .cse3 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0)))))) (not |c_ULTIMATE.start_step_#t~short18#1|)) (or (let ((.cse6 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse4 .cse1 0)))) (and (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse5 (select (store (store .cse6 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= (mod (select .cse5 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0)) (= (mod (select .cse5 .cse1) 256) 0)))) (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse7 (select (store (store .cse6 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (mod (select .cse7 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0) (= (mod (select .cse7 .cse1) 256) 1)))))) |c_ULTIMATE.start_step_#t~short18#1|))) is different from false [2023-11-19 07:59:08,933 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 4 |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (and (forall ((v_ArrVal_168 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_168) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= 0 (mod (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256)) (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse0 .cse2 1)) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (mod (select .cse1 .cse2) 256) 1) (= (mod (select .cse1 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0))))))) (forall ((v_ArrVal_168 (Array Int Int))) (let ((.cse3 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_168) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= 0 (mod (select .cse3 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256))) (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse4 (select (store (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse3 .cse2 0)) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (mod (select .cse4 .cse2) 256) 0) (not (= (mod (select .cse4 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0)))))))) (forall ((v_ArrVal_168 (Array Int Int))) (let ((.cse6 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_168) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse5 (select (store (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse6 .cse2 1)) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (mod (select .cse5 .cse2) 256) 0) (not (= (mod (select .cse5 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0))))) (= 0 (mod (select .cse6 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256))))) (forall ((v_ArrVal_168 (Array Int Int))) (let ((.cse7 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_168) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= 0 (mod (select .cse7 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256))) (forall ((v_ArrVal_171 (Array Int Int)) (v_ArrVal_172 (Array Int Int))) (let ((.cse8 (select (store (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse7 .cse2 0)) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_172) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_171) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (mod (select .cse8 .cse2) 256) 1) (= (mod (select .cse8 |c_~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0))))))))) is different from false [2023-11-19 07:59:09,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:09,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495477884] [2023-11-19 07:59:09,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:59:09,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858371607] [2023-11-19 07:59:09,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858371607] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:09,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:59:09,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-19 07:59:09,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793749281] [2023-11-19 07:59:09,304 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:09,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-19 07:59:09,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:09,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-19 07:59:09,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=358, Unknown=3, NotChecked=120, Total=552 [2023-11-19 07:59:09,306 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-19 07:59:10,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:10,859 INFO L93 Difference]: Finished difference Result 295 states and 421 transitions. [2023-11-19 07:59:10,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:59:10,860 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 109 [2023-11-19 07:59:10,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:10,863 INFO L225 Difference]: With dead ends: 295 [2023-11-19 07:59:10,863 INFO L226 Difference]: Without dead ends: 198 [2023-11-19 07:59:10,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=908, Unknown=3, NotChecked=198, Total=1332 [2023-11-19 07:59:10,866 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 412 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:10,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 772 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:59:10,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-19 07:59:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 121. [2023-11-19 07:59:10,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 105 states have (on average 1.4) internal successors, (147), 105 states have internal predecessors, (147), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 173 transitions. [2023-11-19 07:59:10,908 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 173 transitions. Word has length 109 [2023-11-19 07:59:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:10,909 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 173 transitions. [2023-11-19 07:59:10,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-19 07:59:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 173 transitions. [2023-11-19 07:59:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:10,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:10,914 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:10,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:11,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:11,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:11,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash -382462684, now seen corresponding path program 1 times [2023-11-19 07:59:11,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:11,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32649232] [2023-11-19 07:59:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:11,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:11,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:59:11,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [477617029] [2023-11-19 07:59:11,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:11,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:11,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:11,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:11,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:59:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 07:59:11,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:11,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 07:59:12,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 07:59:12,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:12,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:12,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:12,271 INFO L378 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 34 treesize of output 30 [2023-11-19 07:59:12,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:12,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:12,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:12,377 INFO L349 Elim1Store]: treesize reduction 81, result has 18.2 percent of original size [2023-11-19 07:59:12,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 93 [2023-11-19 07:59:12,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:12,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32649232] [2023-11-19 07:59:12,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:59:12,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477617029] [2023-11-19 07:59:12,485 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-19 07:59:12,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:12,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:12,709 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-19 07:59:12,713 INFO L158 Benchmark]: Toolchain (without parser) took 10672.74ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 129.7MB in the beginning and 90.8MB in the end (delta: 38.9MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. [2023-11-19 07:59:12,713 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory was 57.4MB in the beginning and 57.3MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:12,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.32ms. Allocated memory is still 167.8MB. Free memory was 129.7MB in the beginning and 115.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:59:12,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.20ms. Allocated memory is still 167.8MB. Free memory was 115.3MB in the beginning and 111.3MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:12,714 INFO L158 Benchmark]: Boogie Preprocessor took 89.38ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 108.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:12,714 INFO L158 Benchmark]: RCFGBuilder took 970.22ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 132.4MB in the end (delta: -24.4MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-19 07:59:12,715 INFO L158 Benchmark]: TraceAbstraction took 9178.80ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 132.4MB in the beginning and 90.8MB in the end (delta: 41.6MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. [2023-11-19 07:59:12,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory was 57.4MB in the beginning and 57.3MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.32ms. Allocated memory is still 167.8MB. Free memory was 129.7MB in the beginning and 115.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.20ms. Allocated memory is still 167.8MB. Free memory was 115.3MB in the beginning and 111.3MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.38ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 108.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 970.22ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 132.4MB in the end (delta: -24.4MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9178.80ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 132.4MB in the beginning and 90.8MB in the end (delta: 41.6MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 07:59:12,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu --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 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:15,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:15,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:59:15,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:15,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:15,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:15,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:15,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:15,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:15,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:15,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:15,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:15,705 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:15,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:15,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:15,708 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:15,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:15,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:15,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:15,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:15,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:15,712 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:59:15,712 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:59:15,713 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:59:15,713 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:15,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:15,714 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:15,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:15,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:15,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:15,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:15,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:15,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:15,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:15,719 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:59:15,719 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:59:15,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:15,720 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:15,720 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:15,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:15,721 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:59:15,722 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:15,722 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_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab [2023-11-19 07:59:16,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:16,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:16,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:16,186 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:16,187 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:16,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-11-19 07:59:19,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:19,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:19,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-11-19 07:59:19,552 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/data/ef9400c00/776788da9490456c972bfff1855678ea/FLAG80c14b4dc [2023-11-19 07:59:19,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/data/ef9400c00/776788da9490456c972bfff1855678ea [2023-11-19 07:59:19,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:19,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:19,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:19,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:19,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:19,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:19" (1/1) ... [2023-11-19 07:59:19,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319a2d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19, skipping insertion in model container [2023-11-19 07:59:19,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:19" (1/1) ... [2023-11-19 07:59:19,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:19,799 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_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2023-11-19 07:59:19,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:19,891 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:19,907 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_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2023-11-19 07:59:19,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:20,062 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:20,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20 WrapperNode [2023-11-19 07:59:20,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:20,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:20,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:20,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:20,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,159 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 360 [2023-11-19 07:59:20,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:20,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:20,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:20,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:20,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:20,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:20,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:20,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:20,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:20,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:59:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-19 07:59:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:59:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:59:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:59:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 07:59:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:59:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:59:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 07:59:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 07:59:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:59:20,595 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:20,600 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:21,546 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:21,561 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:21,561 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:59:21,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:21 BoogieIcfgContainer [2023-11-19 07:59:21,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:21,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:21,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:21,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:21,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:19" (1/3) ... [2023-11-19 07:59:21,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcaecc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:21, skipping insertion in model container [2023-11-19 07:59:21,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (2/3) ... [2023-11-19 07:59:21,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcaecc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:21, skipping insertion in model container [2023-11-19 07:59:21,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:21" (3/3) ... [2023-11-19 07:59:21,588 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-89.i [2023-11-19 07:59:21,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:21,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:59:21,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:21,692 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;@7e04416b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:21,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:59:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 79 states have internal predecessors, (110), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:21,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:21,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:21,725 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:21,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:21,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1982624221, now seen corresponding path program 1 times [2023-11-19 07:59:21,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:21,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401082034] [2023-11-19 07:59:21,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:21,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:21,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:21,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:21,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:59:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:59:22,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-19 07:59:22,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:22,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:22,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401082034] [2023-11-19 07:59:22,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401082034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:22,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:22,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612452659] [2023-11-19 07:59:22,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:22,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:59:22,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:22,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:59:22,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:22,230 INFO L87 Difference]: Start difference. First operand has 94 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 79 states have internal predecessors, (110), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:59:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:22,262 INFO L93 Difference]: Finished difference Result 181 states and 279 transitions. [2023-11-19 07:59:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:59:22,264 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2023-11-19 07:59:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:22,272 INFO L225 Difference]: With dead ends: 181 [2023-11-19 07:59:22,273 INFO L226 Difference]: Without dead ends: 90 [2023-11-19 07:59:22,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:22,280 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:22,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-19 07:59:22,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-11-19 07:59:22,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2023-11-19 07:59:22,330 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 109 [2023-11-19 07:59:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:22,331 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2023-11-19 07:59:22,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:59:22,332 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2023-11-19 07:59:22,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:22,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:22,335 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:22,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:22,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:22,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:22,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:22,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1830747831, now seen corresponding path program 1 times [2023-11-19 07:59:22,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:22,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971723435] [2023-11-19 07:59:22,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:22,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:22,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:22,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:22,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:59:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:22,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:23,013 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-19 07:59:23,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:23,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:23,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971723435] [2023-11-19 07:59:23,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971723435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:23,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:23,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:59:23,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758719928] [2023-11-19 07:59:23,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:23,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:23,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:23,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:23,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:23,027 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:59:23,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:23,188 INFO L93 Difference]: Finished difference Result 198 states and 285 transitions. [2023-11-19 07:59:23,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:59:23,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2023-11-19 07:59:23,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:23,195 INFO L225 Difference]: With dead ends: 198 [2023-11-19 07:59:23,195 INFO L226 Difference]: Without dead ends: 111 [2023-11-19 07:59:23,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:23,202 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 46 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:23,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 488 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:59:23,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-19 07:59:23,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 94. [2023-11-19 07:59:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 79 states have internal predecessors, (107), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:23,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 133 transitions. [2023-11-19 07:59:23,218 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 133 transitions. Word has length 109 [2023-11-19 07:59:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:23,221 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 133 transitions. [2023-11-19 07:59:23,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:59:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 133 transitions. [2023-11-19 07:59:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:23,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:23,224 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:23,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:23,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:23,433 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:23,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:23,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1150689461, now seen corresponding path program 1 times [2023-11-19 07:59:23,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:23,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406266426] [2023-11-19 07:59:23,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:23,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:23,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:23,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:23,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:59:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:23,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:59:23,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-19 07:59:23,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:23,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:23,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406266426] [2023-11-19 07:59:23,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406266426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:23,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:23,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:59:23,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806815675] [2023-11-19 07:59:23,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:23,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:59:23,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:23,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:59:23,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:59:23,887 INFO L87 Difference]: Start difference. First operand 94 states and 133 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:59:24,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:24,047 INFO L93 Difference]: Finished difference Result 205 states and 290 transitions. [2023-11-19 07:59:24,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:59:24,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2023-11-19 07:59:24,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:24,062 INFO L225 Difference]: With dead ends: 205 [2023-11-19 07:59:24,062 INFO L226 Difference]: Without dead ends: 114 [2023-11-19 07:59:24,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:59:24,069 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 49 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:24,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 603 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:59:24,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-19 07:59:24,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2023-11-19 07:59:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 81 states have (on average 1.345679012345679) internal successors, (109), 81 states have internal predecessors, (109), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:24,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 135 transitions. [2023-11-19 07:59:24,090 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 135 transitions. Word has length 109 [2023-11-19 07:59:24,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:24,091 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 135 transitions. [2023-11-19 07:59:24,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:59:24,092 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 135 transitions. [2023-11-19 07:59:24,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:24,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:24,095 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:24,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:24,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:24,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:24,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:24,302 INFO L85 PathProgramCache]: Analyzing trace with hash 624317901, now seen corresponding path program 1 times [2023-11-19 07:59:24,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433138216] [2023-11-19 07:59:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:24,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:24,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:24,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:24,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 07:59:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:24,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-19 07:59:24,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:24,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-19 07:59:25,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2023-11-19 07:59:26,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:59:26,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2023-11-19 07:59:26,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-19 07:59:27,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-19 07:59:27,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-19 07:59:28,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-19 07:59:28,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:59:28,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 49 [2023-11-19 07:59:28,957 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:59:28,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 67 [2023-11-19 07:59:28,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2023-11-19 07:59:29,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:59:29,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 37 [2023-11-19 07:59:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 65 proven. 202 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 07:59:29,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:29,670 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (.cse2 (select |c_#memory_int| |c_~#signed_long_int_Array_0~0.base|))) (and (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| (store .cse2 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= ((_ extract 7 0) (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse1))))))) (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse3 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| (store .cse2 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse3 .cse1)))) (= ((_ extract 7 0) (select .cse3 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))))) is different from false [2023-11-19 07:59:29,867 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base|)) (.cse1 (bvadd (_ bv4 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (and (or (not |c_ULTIMATE.start_step_#t~short18#1|) (let ((.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse5 .cse1 ((_ sign_extend 24) (_ bv1 8)))))) (let ((.cse3 (select .cse2 |c_~#signed_long_int_Array_0~0.base|))) (and (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse0 (select (store (store .cse2 |c_~#signed_long_int_Array_0~0.base| (store .cse3 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse1))) (_ bv1 32)) (= ((_ extract 7 0) (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))) (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse4 (select (store (store .cse2 |c_~#signed_long_int_Array_0~0.base| (store .cse3 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= ((_ extract 7 0) (select .cse4 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse4 .cse1))) (_ bv0 32))))))))) (or (let ((.cse7 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse5 .cse1 ((_ sign_extend 24) (_ bv0 8)))))) (let ((.cse8 (select .cse7 |c_~#signed_long_int_Array_0~0.base|))) (and (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse6 (select (store (store .cse7 |c_~#signed_long_int_Array_0~0.base| (store .cse8 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ extract 7 0) (select .cse6 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse6 .cse1))) (_ bv1 32))))) (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse9 (select (store (store .cse7 |c_~#signed_long_int_Array_0~0.base| (store .cse8 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= ((_ extract 7 0) (select .cse9 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse9 .cse1))) (_ bv0 32)))))))) |c_ULTIMATE.start_step_#t~short18#1|))) is different from false [2023-11-19 07:59:30,102 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base|))) (let ((.cse2 (bvadd (_ bv4 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (.cse0 (= ((_ extract 7 0) (select .cse6 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))) (and (or .cse0 (let ((.cse3 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse6 .cse2 ((_ sign_extend 24) (_ bv1 8)))))) (let ((.cse4 (select .cse3 |c_~#signed_long_int_Array_0~0.base|))) (and (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse1 (select (store (store .cse3 |c_~#signed_long_int_Array_0~0.base| (store .cse4 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 .cse2))) (_ bv1 32)) (= ((_ extract 7 0) (select .cse1 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))) (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse5 (select (store (store .cse3 |c_~#signed_long_int_Array_0~0.base| (store .cse4 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= ((_ extract 7 0) (select .cse5 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse5 .cse2))) (_ bv0 32))))))))) (or (let ((.cse8 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse6 .cse2 ((_ sign_extend 24) (_ bv0 8)))))) (let ((.cse9 (select .cse8 |c_~#signed_long_int_Array_0~0.base|))) (and (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse7 (select (store (store .cse8 |c_~#signed_long_int_Array_0~0.base| (store .cse9 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ extract 7 0) (select .cse7 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse7 .cse2))) (_ bv1 32))))) (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse10 (select (store (store .cse8 |c_~#signed_long_int_Array_0~0.base| (store .cse9 |~#signed_long_int_Array_0~0.offset| v_ArrVal_91)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= ((_ extract 7 0) (select .cse10 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse10 .cse2))) (_ bv0 32)))))))) (not .cse0))))) is different from false [2023-11-19 07:59:30,572 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ sign_extend 24) (_ bv1 8))) (.cse1 (bvadd (_ bv4 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (.cse5 ((_ sign_extend 24) (_ bv0 8)))) (and (forall ((v_ArrVal_87 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_87))) (let ((.cse4 (select .cse3 |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse0 (select (store (let ((.cse2 (store .cse4 .cse1 .cse5))) (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| .cse2) |c_~#signed_long_int_Array_0~0.base| (store (select (store .cse3 |c_~#BOOL_unsigned_char_Array_0~0.base| .cse2) |c_~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset| v_ArrVal_91))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (_ bv0 8) ((_ extract 7 0) (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse1))) (_ bv1 32))))) (not (= ((_ extract 7 0) (select .cse4 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))))) (forall ((v_ArrVal_87 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_87))) (let ((.cse6 (select .cse9 |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ extract 7 0) (select .cse6 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)) (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse7 (select (store (let ((.cse8 (store .cse6 .cse1 .cse10))) (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| .cse8) |c_~#signed_long_int_Array_0~0.base| (store (select (store .cse9 |c_~#BOOL_unsigned_char_Array_0~0.base| .cse8) |c_~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset| v_ArrVal_91))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse7 .cse1))) (_ bv0 32)) (not (= ((_ extract 7 0) (select .cse7 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))))))))) (forall ((v_ArrVal_87 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse13 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_87))) (let ((.cse14 (select .cse13 |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse11 (select (store (let ((.cse12 (store .cse14 .cse1 .cse10))) (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| .cse12) |c_~#signed_long_int_Array_0~0.base| (store (select (store .cse13 |c_~#BOOL_unsigned_char_Array_0~0.base| .cse12) |c_~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset| v_ArrVal_91))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ extract 7 0) (select .cse11 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)) (= (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse11 .cse1))))))) (= ((_ extract 7 0) (select .cse14 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))))) (forall ((v_ArrVal_87 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse17 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_87))) (let ((.cse18 (select .cse17 |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (forall ((v_ArrVal_92 (Array (_ BitVec 32) (_ BitVec 32))) (|~#signed_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_91 (_ BitVec 32))) (let ((.cse15 (select (store (let ((.cse16 (store .cse18 .cse1 .cse5))) (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| .cse16) |c_~#signed_long_int_Array_0~0.base| (store (select (store .cse17 |c_~#BOOL_unsigned_char_Array_0~0.base| .cse16) |c_~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset| v_ArrVal_91))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_92) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= (_ bv0 8) ((_ extract 7 0) (select .cse15 |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse15 .cse1))) (_ bv0 32))))) (not (= ((_ extract 7 0) (select .cse18 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))))))) is different from false [2023-11-19 07:59:31,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:31,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433138216] [2023-11-19 07:59:31,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433138216] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:31,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1479853836] [2023-11-19 07:59:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:31,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 07:59:31,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/cvc4 [2023-11-19 07:59:31,625 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 07:59:31,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 07:59:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:32,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 07:59:32,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:32,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 07:59:33,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 07:59:33,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-19 07:59:34,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-19 07:59:34,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-19 07:59:35,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-19 07:59:35,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-19 07:59:35,894 INFO L378 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 47 treesize of output 34 [2023-11-19 07:59:36,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 40 [2023-11-19 07:59:36,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 44 [2023-11-19 07:59:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 64 proven. 184 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 07:59:36,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:36,891 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (and (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse1))) (_ bv1 32)) (= ((_ extract 7 0) (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))) (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= ((_ extract 7 0) (select .cse2 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse2 .cse1))) (_ bv0 32))))))) is different from false [2023-11-19 07:59:37,026 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base|)) (.cse1 (bvadd (_ bv4 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (and (or (let ((.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse4 .cse1 ((_ sign_extend 24) (_ bv1 8)))))) (and (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store .cse2 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse1))) (_ bv1 32)) (= ((_ extract 7 0) (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))) (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store (store .cse2 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse3 .cse1))) (_ bv0 32)) (not (= ((_ extract 7 0) (select .cse3 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))))))) (not |c_ULTIMATE.start_step_#t~short18#1|)) (or (let ((.cse6 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse4 .cse1 ((_ sign_extend 24) (_ bv0 8)))))) (and (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (store (store .cse6 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= (_ bv0 8) ((_ extract 7 0) (select .cse5 |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse5 .cse1))) (_ bv0 32))))) (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (store (store .cse6 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (_ bv0 8) ((_ extract 7 0) (select .cse7 |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse7 .cse1))) (_ bv1 32))))))) |c_ULTIMATE.start_step_#t~short18#1|))) is different from false [2023-11-19 07:59:37,191 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base|))) (let ((.cse1 (bvadd (_ bv4 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (.cse5 (= ((_ extract 7 0) (select .cse4 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))) (and (or (let ((.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse4 .cse1 ((_ sign_extend 24) (_ bv1 8)))))) (and (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store .cse2 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse1))) (_ bv1 32)) (= ((_ extract 7 0) (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))) (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store (store .cse2 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse3 .cse1))) (_ bv0 32)) (not (= ((_ extract 7 0) (select .cse3 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))))))) .cse5) (or (let ((.cse7 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse4 .cse1 ((_ sign_extend 24) (_ bv0 8)))))) (and (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (store (store .cse7 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= (_ bv0 8) ((_ extract 7 0) (select .cse6 |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse6 .cse1))) (_ bv0 32))))) (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (select (store (store .cse7 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (_ bv0 8) ((_ extract 7 0) (select .cse8 |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse8 .cse1))) (_ bv1 32))))))) (not .cse5))))) is different from false [2023-11-19 07:59:37,456 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ sign_extend 24) (_ bv1 8))) (.cse2 (bvadd (_ bv4 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (.cse3 ((_ sign_extend 24) (_ bv0 8)))) (and (forall ((v_ArrVal_121 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_121) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= ((_ extract 7 0) (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))) (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse0 .cse2 .cse3)) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 .cse2)))) (not (= (_ bv0 8) ((_ extract 7 0) (select .cse1 |c_~#BOOL_unsigned_char_Array_0~0.offset|)))))))))) (forall ((v_ArrVal_121 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_121) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse5 .cse2 .cse6)) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ extract 7 0) (select .cse4 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)) (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse4 .cse2))) (_ bv1 32))))) (= ((_ extract 7 0) (select .cse5 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))) (forall ((v_ArrVal_121 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_121) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (store (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse8 .cse2 .cse6)) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse7 .cse2))) (_ bv0 32)) (not (= ((_ extract 7 0) (select .cse7 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))))) (= ((_ extract 7 0) (select .cse8 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))) (forall ((v_ArrVal_121 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse10 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_121) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (forall ((v_ArrVal_124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_125 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (select (store (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse10 .cse2 .cse3)) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_124) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_125) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (= (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse9 .cse2)))) (= (_ bv0 8) ((_ extract 7 0) (select .cse9 |c_~#BOOL_unsigned_char_Array_0~0.offset|)))))) (not (= ((_ extract 7 0) (select .cse10 |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))))))) is different from false [2023-11-19 07:59:37,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1479853836] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:37,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:59:37,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 26 [2023-11-19 07:59:37,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077770808] [2023-11-19 07:59:37,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:37,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-19 07:59:37,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:37,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-19 07:59:37,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=785, Unknown=8, NotChecked=504, Total=1406 [2023-11-19 07:59:37,990 INFO L87 Difference]: Start difference. First operand 96 states and 135 transitions. Second operand has 27 states, 26 states have (on average 4.0) internal successors, (104), 25 states have internal predecessors, (104), 10 states have call successors, (26), 9 states have call predecessors, (26), 10 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-19 07:59:44,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:44,245 INFO L93 Difference]: Finished difference Result 280 states and 392 transitions. [2023-11-19 07:59:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:59:44,249 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.0) internal successors, (104), 25 states have internal predecessors, (104), 10 states have call successors, (26), 9 states have call predecessors, (26), 10 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 109 [2023-11-19 07:59:44,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:44,251 INFO L225 Difference]: With dead ends: 280 [2023-11-19 07:59:44,252 INFO L226 Difference]: Without dead ends: 187 [2023-11-19 07:59:44,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=391, Invalid=1795, Unknown=8, NotChecked=776, Total=2970 [2023-11-19 07:59:44,255 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 1263 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:44,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 752 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-19 07:59:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-19 07:59:44,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 114. [2023-11-19 07:59:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 98 states have (on average 1.3673469387755102) internal successors, (134), 98 states have internal predecessors, (134), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:59:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2023-11-19 07:59:44,317 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 109 [2023-11-19 07:59:44,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:44,318 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2023-11-19 07:59:44,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.0) internal successors, (104), 25 states have internal predecessors, (104), 10 states have call successors, (26), 9 states have call predecessors, (26), 10 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-19 07:59:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2023-11-19 07:59:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:59:44,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:44,332 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:44,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:44,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:44,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:44,733 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:44,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:44,734 INFO L85 PathProgramCache]: Analyzing trace with hash 946208420, now seen corresponding path program 1 times [2023-11-19 07:59:44,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:44,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111640069] [2023-11-19 07:59:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:44,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:44,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:44,737 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:44,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fa1bd-4337-4993-9f18-7f619f68e1d8/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 07:59:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:45,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-19 07:59:45,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:45,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-19 07:59:45,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-19 07:59:46,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-19 07:59:46,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-19 07:59:46,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24