./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 cf1a7837 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_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/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_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:18:55,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:18:56,042 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:18:56,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:18:56,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:18:56,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:18:56,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:18:56,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:18:56,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:18:56,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:18:56,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:18:56,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:18:56,118 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:18:56,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:18:56,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:18:56,119 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:18:56,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:18:56,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:18:56,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:18:56,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:18:56,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:18:56,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:18:56,123 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:18:56,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:18:56,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:18:56,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:18:56,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:18:56,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:18:56,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:56,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:18:56,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:18:56,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:18:56,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:18:56,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:18:56,129 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:18:56,129 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:18:56,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:18:56,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:18:56,130 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:18:56,130 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_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab [2023-11-12 02:18:56,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:18:56,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:18:56,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:18:56,465 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:18:56,466 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:18:56,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-11-12 02:18:59,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:18:59,976 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:18:59,977 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-11-12 02:18:59,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/data/be348ae17/c9933119bb774b4ab97054db95ba631c/FLAG2db405aa4 [2023-11-12 02:19:00,003 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/data/be348ae17/c9933119bb774b4ab97054db95ba631c [2023-11-12 02:19:00,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:19:00,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:19:00,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:00,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:19:00,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:19:00,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af4f285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00, skipping insertion in model container [2023-11-12 02:19:00,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,056 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:19:00,223 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_84c63aff-d8f6-4496-806a-05c67734ab44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2023-11-12 02:19:00,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:00,336 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:19:00,359 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_84c63aff-d8f6-4496-806a-05c67734ab44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2023-11-12 02:19:00,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:00,410 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:19:00,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00 WrapperNode [2023-11-12 02:19:00,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:00,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:00,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:19:00,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:19:00,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,480 INFO L138 Inliner]: procedures = 26, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 391 [2023-11-12 02:19:00,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:00,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:19:00,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:19:00,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:19:00,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:19:00,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:19:00,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:19:00,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:19:00,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (1/1) ... [2023-11-12 02:19:00,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:00,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:00,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:19:00,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:19:00,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:19:00,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:19:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:19:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:19:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:19:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:19:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:19:00,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:19:00,784 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:19:00,786 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:19:01,458 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:19:01,477 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:19:01,479 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:19:01,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:01 BoogieIcfgContainer [2023-11-12 02:19:01,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:19:01,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:19:01,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:19:01,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:19:01,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:19:00" (1/3) ... [2023-11-12 02:19:01,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686f2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:01, skipping insertion in model container [2023-11-12 02:19:01,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:00" (2/3) ... [2023-11-12 02:19:01,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686f2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:01, skipping insertion in model container [2023-11-12 02:19:01,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:01" (3/3) ... [2023-11-12 02:19:01,501 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-89.i [2023-11-12 02:19:01,523 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:19:01,524 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:19:01,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:19:01,598 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;@41d46570, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:19:01,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:19:01,603 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) [2023-11-12 02:19:01,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:01,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:01,620 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] [2023-11-12 02:19:01,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:01,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:01,627 INFO L85 PathProgramCache]: Analyzing trace with hash 983671971, now seen corresponding path program 1 times [2023-11-12 02:19:01,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:01,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305077093] [2023-11-12 02:19:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:01,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:01,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:01,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305077093] [2023-11-12 02:19:01,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:19:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561956675] [2023-11-12 02:19:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:01,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:01,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:01,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:19:01,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:19:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:02,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:19:02,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-12 02:19:02,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:19:02,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561956675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:02,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:02,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:02,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96127512] [2023-11-12 02:19:02,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:02,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:19:02,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:02,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:19:02,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:19:02,255 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) [2023-11-12 02:19:02,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:02,289 INFO L93 Difference]: Finished difference Result 193 states and 303 transitions. [2023-11-12 02:19:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:19:02,291 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 [2023-11-12 02:19:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:02,300 INFO L225 Difference]: With dead ends: 193 [2023-11-12 02:19:02,300 INFO L226 Difference]: Without dead ends: 96 [2023-11-12 02:19:02,304 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 [2023-11-12 02:19:02,308 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 [2023-11-12 02:19:02,309 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] [2023-11-12 02:19:02,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-12 02:19:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-12 02:19:02,357 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) [2023-11-12 02:19:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-11-12 02:19:02,375 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 109 [2023-11-12 02:19:02,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:02,377 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-11-12 02:19:02,378 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) [2023-11-12 02:19:02,378 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-11-12 02:19:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:02,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:02,384 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] [2023-11-12 02:19:02,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:19:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:19:02,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:02,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:02,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1135548361, now seen corresponding path program 1 times [2023-11-12 02:19:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:02,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922919030] [2023-11-12 02:19:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:02,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:02,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:19:02,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285161051] [2023-11-12 02:19:02,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:02,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:02,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:02,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:19:02,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:19:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:02,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:19:02,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-12 02:19:02,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:19:02,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922919030] [2023-11-12 02:19:02,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:19:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285161051] [2023-11-12 02:19:02,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285161051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:02,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:02,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:19:02,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355418457] [2023-11-12 02:19:02,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:02,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:19:02,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:02,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:19:02,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:19:02,980 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) [2023-11-12 02:19:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:03,037 INFO L93 Difference]: Finished difference Result 201 states and 292 transitions. [2023-11-12 02:19:03,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:19:03,039 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 [2023-11-12 02:19:03,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:03,042 INFO L225 Difference]: With dead ends: 201 [2023-11-12 02:19:03,042 INFO L226 Difference]: Without dead ends: 108 [2023-11-12 02:19:03,043 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 [2023-11-12 02:19:03,048 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 [2023-11-12 02:19:03,049 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] [2023-11-12 02:19:03,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-12 02:19:03,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 98. [2023-11-12 02:19:03,077 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) [2023-11-12 02:19:03,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-11-12 02:19:03,086 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 109 [2023-11-12 02:19:03,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:03,090 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-11-12 02:19:03,090 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) [2023-11-12 02:19:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-11-12 02:19:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:03,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:03,096 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] [2023-11-12 02:19:03,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:19:03,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:03,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:03,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:03,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1815606731, now seen corresponding path program 1 times [2023-11-12 02:19:03,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:03,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020457052] [2023-11-12 02:19:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:03,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:03,393 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:19:03,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554042967] [2023-11-12 02:19:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:03,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:03,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:03,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:19:03,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:19:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:03,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:19:03,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-12 02:19:03,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:19:03,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:03,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020457052] [2023-11-12 02:19:03,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:19:03,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554042967] [2023-11-12 02:19:03,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554042967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:03,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:03,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:19:03,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364054932] [2023-11-12 02:19:03,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:03,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:19:03,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:03,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:19:03,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:19:03,631 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) [2023-11-12 02:19:03,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:03,695 INFO L93 Difference]: Finished difference Result 201 states and 290 transitions. [2023-11-12 02:19:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:19:03,700 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 [2023-11-12 02:19:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:03,702 INFO L225 Difference]: With dead ends: 201 [2023-11-12 02:19:03,703 INFO L226 Difference]: Without dead ends: 106 [2023-11-12 02:19:03,704 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 [2023-11-12 02:19:03,705 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 [2023-11-12 02:19:03,706 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] [2023-11-12 02:19:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-12 02:19:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2023-11-12 02:19:03,717 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) [2023-11-12 02:19:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2023-11-12 02:19:03,718 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 109 [2023-11-12 02:19:03,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:03,719 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2023-11-12 02:19:03,719 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) [2023-11-12 02:19:03,720 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-11-12 02:19:03,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:03,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:03,722 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] [2023-11-12 02:19:03,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:19:03,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:03,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:03,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:03,930 INFO L85 PathProgramCache]: Analyzing trace with hash -704353203, now seen corresponding path program 1 times [2023-11-12 02:19:03,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:03,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126289311] [2023-11-12 02:19:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:03,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:03,971 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:19:03,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068362524] [2023-11-12 02:19:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:03,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:03,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:03,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:19:03,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:19:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:04,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-12 02:19:04,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:04,651 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-12 02:19:04,898 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-12 02:19:05,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:05,131 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-12 02:19:05,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:05,375 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-12 02:19:05,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:05,637 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-12 02:19:05,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:05,903 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-12 02:19:05,990 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-12 02:19:06,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:06,051 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-11-12 02:19:06,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:06,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:06,074 INFO L351 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 [2023-11-12 02:19:06,193 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:19:06,193 INFO L351 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 [2023-11-12 02:19:06,251 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 12 proven. 220 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-12 02:19:06,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:19:06,532 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 [2023-11-12 02:19:06,620 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 [2023-11-12 02:19:07,117 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 [2023-11-12 02:19:07,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:07,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126289311] [2023-11-12 02:19:07,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:19:07,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068362524] [2023-11-12 02:19:07,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068362524] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:19:07,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:19:07,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-12 02:19:07,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312368013] [2023-11-12 02:19:07,618 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:19:07,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 02:19:07,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:07,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 02:19:07,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=357, Unknown=4, NotChecked=120, Total=552 [2023-11-12 02:19:07,621 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) [2023-11-12 02:19:09,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:09,376 INFO L93 Difference]: Finished difference Result 295 states and 421 transitions. [2023-11-12 02:19:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-12 02:19:09,379 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 [2023-11-12 02:19:09,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:09,382 INFO L225 Difference]: With dead ends: 295 [2023-11-12 02:19:09,382 INFO L226 Difference]: Without dead ends: 198 [2023-11-12 02:19:09,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=223, Invalid=907, Unknown=4, NotChecked=198, Total=1332 [2023-11-12 02:19:09,387 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 412 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:09,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 772 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 02:19:09,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-12 02:19:09,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 121. [2023-11-12 02:19:09,417 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) [2023-11-12 02:19:09,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 173 transitions. [2023-11-12 02:19:09,426 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 173 transitions. Word has length 109 [2023-11-12 02:19:09,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:09,428 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 173 transitions. [2023-11-12 02:19:09,429 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) [2023-11-12 02:19:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 173 transitions. [2023-11-12 02:19:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:09,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:09,434 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] [2023-11-12 02:19:09,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:19:09,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-12 02:19:09,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:09,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash -382462684, now seen corresponding path program 1 times [2023-11-12 02:19:09,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:09,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961586146] [2023-11-12 02:19:09,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:09,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:09,702 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:19:09,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008665671] [2023-11-12 02:19:09,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:09,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:09,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:09,711 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:19:09,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:19:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:09,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-12 02:19:09,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:10,432 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:19:10,631 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:19:10,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:10,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:10,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:10,733 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2023-11-12 02:19:10,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:10,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:10,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:10,838 INFO L322 Elim1Store]: treesize reduction 81, result has 18.2 percent of original size [2023-11-12 02:19:10,839 INFO L351 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 [2023-11-12 02:19:10,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:10,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961586146] [2023-11-12 02:19:10,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:19:10,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008665671] [2023-11-12 02:19:10,955 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-12 02:19:10,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:19:11,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:11,162 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:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) 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) [2023-11-12 02:19:11,167 INFO L158 Benchmark]: Toolchain (without parser) took 11159.83ms. Allocated memory was 138.4MB in the beginning and 220.2MB in the end (delta: 81.8MB). Free memory was 106.6MB in the beginning and 151.4MB in the end (delta: -44.9MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2023-11-12 02:19:11,167 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 100.7MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:11,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.62ms. Allocated memory is still 138.4MB. Free memory was 106.6MB in the beginning and 92.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:19:11,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.76ms. Allocated memory is still 138.4MB. Free memory was 92.3MB in the beginning and 88.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:19:11,169 INFO L158 Benchmark]: Boogie Preprocessor took 59.19ms. Allocated memory is still 138.4MB. Free memory was 88.2MB in the beginning and 85.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:19:11,169 INFO L158 Benchmark]: RCFGBuilder took 944.49ms. Allocated memory is still 138.4MB. Free memory was 85.3MB in the beginning and 103.0MB in the end (delta: -17.8MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-12 02:19:11,169 INFO L158 Benchmark]: TraceAbstraction took 9678.14ms. Allocated memory was 138.4MB in the beginning and 220.2MB in the end (delta: 81.8MB). Free memory was 102.4MB in the beginning and 151.4MB in the end (delta: -49.0MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-11-12 02:19:11,171 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 100.7MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.62ms. Allocated memory is still 138.4MB. Free memory was 106.6MB in the beginning and 92.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.76ms. Allocated memory is still 138.4MB. Free memory was 92.3MB in the beginning and 88.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.19ms. Allocated memory is still 138.4MB. Free memory was 88.2MB in the beginning and 85.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 944.49ms. Allocated memory is still 138.4MB. Free memory was 85.3MB in the beginning and 103.0MB in the end (delta: -17.8MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9678.14ms. Allocated memory was 138.4MB in the beginning and 220.2MB in the end (delta: 81.8MB). Free memory was 102.4MB in the beginning and 151.4MB in the end (delta: -49.0MB). Peak memory consumption was 33.3MB. 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. [2023-11-12 02:19:11,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/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_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/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_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:19:13,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:19:14,102 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:19:14,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:19:14,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:19:14,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:19:14,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:19:14,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:19:14,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:19:14,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:19:14,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:19:14,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:19:14,166 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:19:14,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:19:14,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:19:14,169 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:19:14,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:19:14,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:19:14,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:19:14,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:19:14,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:19:14,176 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:19:14,177 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:19:14,177 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:19:14,178 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:19:14,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:19:14,178 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:19:14,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:19:14,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:19:14,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:19:14,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:14,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:19:14,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:19:14,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:19:14,182 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:19:14,183 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:19:14,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:19:14,183 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:19:14,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:19:14,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:19:14,185 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:19:14,185 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:19:14,185 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_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab [2023-11-12 02:19:14,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:19:14,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:19:14,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:19:14,676 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:19:14,676 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:19:14,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-11-12 02:19:17,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:19:18,145 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:19:18,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-11-12 02:19:18,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/data/42c9c660c/8e673992396e4fb286b00d25da2c10dd/FLAG1809bd3ac [2023-11-12 02:19:18,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/data/42c9c660c/8e673992396e4fb286b00d25da2c10dd [2023-11-12 02:19:18,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:19:18,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:19:18,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:18,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:19:18,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:19:18,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca6084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18, skipping insertion in model container [2023-11-12 02:19:18,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:19:18,432 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_84c63aff-d8f6-4496-806a-05c67734ab44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2023-11-12 02:19:18,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:18,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:19:18,575 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_84c63aff-d8f6-4496-806a-05c67734ab44/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2023-11-12 02:19:18,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:18,682 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:19:18,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18 WrapperNode [2023-11-12 02:19:18,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:18,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:18,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:19:18,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:19:18,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,783 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 360 [2023-11-12 02:19:18,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:18,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:19:18,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:19:18,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:19:18,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:19:18,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:19:18,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:19:18,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:19:18,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (1/1) ... [2023-11-12 02:19:18,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:18,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:18,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:19:18,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:19:18,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:19:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 02:19:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-12 02:19:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:19:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 02:19:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:19:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-12 02:19:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:19:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:19:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:19:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:19:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-12 02:19:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-12 02:19:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:19:19,113 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:19:19,115 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:19:20,052 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:19:20,065 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:19:20,065 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:19:20,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:20 BoogieIcfgContainer [2023-11-12 02:19:20,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:19:20,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:19:20,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:19:20,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:19:20,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:19:18" (1/3) ... [2023-11-12 02:19:20,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452a1dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:20, skipping insertion in model container [2023-11-12 02:19:20,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:18" (2/3) ... [2023-11-12 02:19:20,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452a1dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:20, skipping insertion in model container [2023-11-12 02:19:20,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:20" (3/3) ... [2023-11-12 02:19:20,083 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-89.i [2023-11-12 02:19:20,105 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:19:20,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:19:20,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:19:20,182 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;@3b349289, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:19:20,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:19:20,188 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) [2023-11-12 02:19:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:20,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:20,210 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] [2023-11-12 02:19:20,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:20,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:20,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1982624221, now seen corresponding path program 1 times [2023-11-12 02:19:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:20,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397509386] [2023-11-12 02:19:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:20,239 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 [2023-11-12 02:19:20,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:20,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:19:20,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:20,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:19:20,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-12 02:19:20,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:19:20,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:19:20,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397509386] [2023-11-12 02:19:20,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397509386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:20,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:20,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:20,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751626930] [2023-11-12 02:19:20,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:20,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:19:20,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:19:20,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:19:20,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:19:20,763 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) [2023-11-12 02:19:20,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:20,801 INFO L93 Difference]: Finished difference Result 181 states and 279 transitions. [2023-11-12 02:19:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:19:20,803 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 [2023-11-12 02:19:20,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:20,813 INFO L225 Difference]: With dead ends: 181 [2023-11-12 02:19:20,813 INFO L226 Difference]: Without dead ends: 90 [2023-11-12 02:19:20,817 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 [2023-11-12 02:19:20,821 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 [2023-11-12 02:19:20,822 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] [2023-11-12 02:19:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-12 02:19:20,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-11-12 02:19:20,866 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) [2023-11-12 02:19:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2023-11-12 02:19:20,870 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 109 [2023-11-12 02:19:20,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:20,871 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2023-11-12 02:19:20,871 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) [2023-11-12 02:19:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2023-11-12 02:19:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:20,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:20,876 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] [2023-11-12 02:19:20,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:21,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:19:21,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:21,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:21,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1830747831, now seen corresponding path program 1 times [2023-11-12 02:19:21,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:21,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483531005] [2023-11-12 02:19:21,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:21,082 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 [2023-11-12 02:19:21,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:21,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:19:21,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:21,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:19:21,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-12 02:19:21,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:19:21,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:19:21,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483531005] [2023-11-12 02:19:21,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483531005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:21,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:21,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:19:21,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435324760] [2023-11-12 02:19:21,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:21,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:19:21,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:19:21,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:19:21,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:19:21,556 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) [2023-11-12 02:19:21,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:21,674 INFO L93 Difference]: Finished difference Result 198 states and 285 transitions. [2023-11-12 02:19:21,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:19:21,675 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 [2023-11-12 02:19:21,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:21,680 INFO L225 Difference]: With dead ends: 198 [2023-11-12 02:19:21,682 INFO L226 Difference]: Without dead ends: 111 [2023-11-12 02:19:21,683 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 [2023-11-12 02:19:21,686 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, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:21,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 488 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:19:21,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-12 02:19:21,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 94. [2023-11-12 02:19:21,702 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) [2023-11-12 02:19:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 133 transitions. [2023-11-12 02:19:21,704 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 133 transitions. Word has length 109 [2023-11-12 02:19:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:21,706 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 133 transitions. [2023-11-12 02:19:21,706 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) [2023-11-12 02:19:21,706 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 133 transitions. [2023-11-12 02:19:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:21,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:21,709 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] [2023-11-12 02:19:21,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:21,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:19:21,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:21,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1150689461, now seen corresponding path program 1 times [2023-11-12 02:19:21,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:21,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426464114] [2023-11-12 02:19:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:21,921 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 [2023-11-12 02:19:21,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:21,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:19:21,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:22,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:19:22,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-12 02:19:22,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:19:22,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:19:22,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426464114] [2023-11-12 02:19:22,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426464114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:22,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:22,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:19:22,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689980008] [2023-11-12 02:19:22,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:22,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:19:22,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:19:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:19:22,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:19:22,264 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) [2023-11-12 02:19:22,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:22,442 INFO L93 Difference]: Finished difference Result 205 states and 290 transitions. [2023-11-12 02:19:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:19:22,444 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 [2023-11-12 02:19:22,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:22,454 INFO L225 Difference]: With dead ends: 205 [2023-11-12 02:19:22,454 INFO L226 Difference]: Without dead ends: 114 [2023-11-12 02:19:22,459 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 [2023-11-12 02:19:22,463 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 [2023-11-12 02:19:22,465 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] [2023-11-12 02:19:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-12 02:19:22,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2023-11-12 02:19:22,490 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) [2023-11-12 02:19:22,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 135 transitions. [2023-11-12 02:19:22,495 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 135 transitions. Word has length 109 [2023-11-12 02:19:22,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:22,497 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 135 transitions. [2023-11-12 02:19:22,498 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) [2023-11-12 02:19:22,498 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 135 transitions. [2023-11-12 02:19:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:22,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:22,504 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] [2023-11-12 02:19:22,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:22,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:19:22,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:22,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:22,722 INFO L85 PathProgramCache]: Analyzing trace with hash 624317901, now seen corresponding path program 1 times [2023-11-12 02:19:22,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:22,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713029760] [2023-11-12 02:19:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:22,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:19:22,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:22,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:19:22,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:23,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-12 02:19:23,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:23,437 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-12 02:19:24,005 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2023-11-12 02:19:24,625 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:19:24,625 INFO L351 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 [2023-11-12 02:19:25,339 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-12 02:19:25,945 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-12 02:19:26,482 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-12 02:19:27,225 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-12 02:19:27,434 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:19:27,435 INFO L351 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 [2023-11-12 02:19:27,584 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:19:27,585 INFO L351 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 [2023-11-12 02:19:27,594 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2023-11-12 02:19:27,909 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:19:27,910 INFO L351 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 [2023-11-12 02:19:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 65 proven. 202 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-12 02:19:28,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:19:28,450 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 [2023-11-12 02:19:28,617 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 [2023-11-12 02:19:28,905 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 [2023-11-12 02:19:29,456 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 [2023-11-12 02:19:30,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:19:30,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713029760] [2023-11-12 02:19:30,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713029760] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:19:30,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1362652462] [2023-11-12 02:19:30,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:30,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 02:19:30,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/cvc4 [2023-11-12 02:19:30,658 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 02:19:30,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-12 02:19:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:31,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-12 02:19:31,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:31,618 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:19:31,953 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:19:32,235 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-12 02:19:32,726 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-12 02:19:33,089 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-12 02:19:33,484 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-12 02:19:33,961 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-12 02:19:34,229 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2023-11-12 02:19:34,427 INFO L351 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 [2023-11-12 02:19:34,820 INFO L351 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 [2023-11-12 02:19:34,923 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 64 proven. 184 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-12 02:19:34,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:19:35,065 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 [2023-11-12 02:19:35,162 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 [2023-11-12 02:19:35,294 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 [2023-11-12 02:19:35,535 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 [2023-11-12 02:19:35,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1362652462] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:19:35,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:19:35,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 26 [2023-11-12 02:19:35,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321903033] [2023-11-12 02:19:35,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:19:35,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-12 02:19:35,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:19:36,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-12 02:19:36,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=785, Unknown=8, NotChecked=504, Total=1406 [2023-11-12 02:19:36,008 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) [2023-11-12 02:19:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:41,744 INFO L93 Difference]: Finished difference Result 280 states and 392 transitions. [2023-11-12 02:19:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-12 02:19:41,745 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 [2023-11-12 02:19:41,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:41,748 INFO L225 Difference]: With dead ends: 280 [2023-11-12 02:19:41,748 INFO L226 Difference]: Without dead ends: 187 [2023-11-12 02:19:41,750 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 [2023-11-12 02:19:41,751 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 1263 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:41,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 752 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-12 02:19:41,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-12 02:19:41,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 114. [2023-11-12 02:19:41,774 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) [2023-11-12 02:19:41,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2023-11-12 02:19:41,776 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 109 [2023-11-12 02:19:41,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:41,777 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2023-11-12 02:19:41,777 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) [2023-11-12 02:19:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2023-11-12 02:19:41,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:19:41,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:41,780 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] [2023-11-12 02:19:41,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-12 02:19:41,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:42,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:19:42,186 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:42,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash 946208420, now seen corresponding path program 1 times [2023-11-12 02:19:42,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:42,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862767794] [2023-11-12 02:19:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:42,187 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 [2023-11-12 02:19:42,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:42,189 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:19:42,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c63aff-d8f6-4496-806a-05c67734ab44/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:19:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:42,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-12 02:19:42,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:42,777 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-12 02:19:43,179 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-12 02:19:43,568 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-12 02:19:43,937 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-12 02:19:44,315 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2023-11-12 02:19:44,808 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22