./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya --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 8b9b5c3584162f1ac164bc4062f8fb20bbcdce8e443da62cb4410d73442b6f23 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:55:56,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:55:56,830 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 03:55:56,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:55:56,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:55:56,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:55:56,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:55:56,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:55:56,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:55:56,864 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:55:56,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:55:56,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:55:56,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:55:56,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:55:56,867 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:55:56,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:55:56,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:55:56,868 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:55:56,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:55:56,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:55:56,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:55:56,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:55:56,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:55:56,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:55:56,872 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:55:56,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:55:56,873 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:55:56,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:55:56,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:55:56,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:55:56,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:55:56,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:55:56,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:55:56,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:55:56,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:55:56,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:55:56,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:55:56,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:55:56,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:55:56,877 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:55:56,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:55:56,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:55:56,878 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_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b9b5c3584162f1ac164bc4062f8fb20bbcdce8e443da62cb4410d73442b6f23 [2023-11-29 03:55:57,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:55:57,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:55:57,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:55:57,138 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:55:57,138 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:55:57,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i [2023-11-29 03:55:59,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:56:00,092 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:56:00,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i [2023-11-29 03:56:00,102 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/data/3ec164a76/fc156aa142814ea7acca315d246cd1e2/FLAGbdf3473ae [2023-11-29 03:56:00,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/data/3ec164a76/fc156aa142814ea7acca315d246cd1e2 [2023-11-29 03:56:00,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:56:00,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:56:00,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:56:00,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:56:00,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:56:00,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77aa9d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00, skipping insertion in model container [2023-11-29 03:56:00,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,163 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:56:00,282 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_f4ce913e-5d9f-44d2-838d-835130a9d470/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i[916,929] [2023-11-29 03:56:00,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:56:00,364 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:56:00,376 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_f4ce913e-5d9f-44d2-838d-835130a9d470/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i[916,929] [2023-11-29 03:56:00,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:56:00,439 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:56:00,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00 WrapperNode [2023-11-29 03:56:00,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:56:00,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:56:00,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:56:00,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:56:00,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,511 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 284 [2023-11-29 03:56:00,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:56:00,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:56:00,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:56:00,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:56:00,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,553 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:56:00,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:56:00,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:56:00,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:56:00,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:56:00,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (1/1) ... [2023-11-29 03:56:00,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:56:00,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:00,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:56:00,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:56:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:56:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:56:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:56:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:56:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:56:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:56:00,769 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:56:00,771 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:56:01,262 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:56:01,293 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:56:01,293 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:56:01,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:56:01 BoogieIcfgContainer [2023-11-29 03:56:01,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:56:01,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:56:01,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:56:01,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:56:01,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:56:00" (1/3) ... [2023-11-29 03:56:01,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5235092a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:56:01, skipping insertion in model container [2023-11-29 03:56:01,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:00" (2/3) ... [2023-11-29 03:56:01,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5235092a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:56:01, skipping insertion in model container [2023-11-29 03:56:01,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:56:01" (3/3) ... [2023-11-29 03:56:01,305 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-14.i [2023-11-29 03:56:01,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:56:01,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:56:01,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:56:01,371 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;@5be736e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:56:01,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:56:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 69 states have (on average 1.5507246376811594) internal successors, (107), 70 states have internal predecessors, (107), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:56:01,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 03:56:01,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:01,392 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:01,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:56:01,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:01,397 INFO L85 PathProgramCache]: Analyzing trace with hash 781656204, now seen corresponding path program 1 times [2023-11-29 03:56:01,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:01,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504569315] [2023-11-29 03:56:01,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:01,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:01,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:01,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751652451] [2023-11-29 03:56:01,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:01,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:01,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:01,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:01,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:56:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:01,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:56:01,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-29 03:56:01,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:56:01,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:01,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504569315] [2023-11-29 03:56:01,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:01,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751652451] [2023-11-29 03:56:01,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751652451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:56:01,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:56:01,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:56:01,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021018426] [2023-11-29 03:56:01,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:56:01,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:56:01,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:01,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:56:01,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:56:01,955 INFO L87 Difference]: Start difference. First operand has 103 states, 69 states have (on average 1.5507246376811594) internal successors, (107), 70 states have internal predecessors, (107), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-29 03:56:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:02,090 INFO L93 Difference]: Finished difference Result 205 states and 368 transitions. [2023-11-29 03:56:02,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:56:02,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2023-11-29 03:56:02,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:02,103 INFO L225 Difference]: With dead ends: 205 [2023-11-29 03:56:02,104 INFO L226 Difference]: Without dead ends: 101 [2023-11-29 03:56:02,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:56:02,112 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 11 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:02,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 600 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:56:02,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-29 03:56:02,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-29 03:56:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.4705882352941178) internal successors, (100), 68 states have internal predecessors, (100), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:56:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 162 transitions. [2023-11-29 03:56:02,170 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 162 transitions. Word has length 198 [2023-11-29 03:56:02,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:02,173 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 162 transitions. [2023-11-29 03:56:02,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-29 03:56:02,174 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 162 transitions. [2023-11-29 03:56:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-29 03:56:02,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:02,179 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:02,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:56:02,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:56:02,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:56:02,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:02,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1649297264, now seen corresponding path program 1 times [2023-11-29 03:56:02,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:02,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557849969] [2023-11-29 03:56:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:02,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:02,449 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:02,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401772076] [2023-11-29 03:56:02,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:02,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:02,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:02,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:02,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:56:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:03,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 03:56:03,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 157 proven. 162 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-11-29 03:56:04,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-29 03:56:04,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:04,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557849969] [2023-11-29 03:56:04,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:04,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401772076] [2023-11-29 03:56:04,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401772076] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:04,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:04,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2023-11-29 03:56:04,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541230259] [2023-11-29 03:56:04,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:56:04,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:56:04,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:04,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:56:04,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:56:04,918 INFO L87 Difference]: Start difference. First operand 101 states and 162 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-29 03:56:05,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:05,150 INFO L93 Difference]: Finished difference Result 209 states and 332 transitions. [2023-11-29 03:56:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:56:05,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2023-11-29 03:56:05,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:05,155 INFO L225 Difference]: With dead ends: 209 [2023-11-29 03:56:05,155 INFO L226 Difference]: Without dead ends: 109 [2023-11-29 03:56:05,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:56:05,158 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 193 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:05,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 406 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:56:05,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-29 03:56:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2023-11-29 03:56:05,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 72 states have (on average 1.4305555555555556) internal successors, (103), 73 states have internal predecessors, (103), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 03:56:05,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 169 transitions. [2023-11-29 03:56:05,180 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 169 transitions. Word has length 199 [2023-11-29 03:56:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:05,181 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 169 transitions. [2023-11-29 03:56:05,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-29 03:56:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 169 transitions. [2023-11-29 03:56:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-29 03:56:05,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:05,187 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:05,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:56:05,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 03:56:05,391 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:56:05,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:05,391 INFO L85 PathProgramCache]: Analyzing trace with hash 204075029, now seen corresponding path program 1 times [2023-11-29 03:56:05,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:05,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073041630] [2023-11-29 03:56:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:05,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:05,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:05,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695677163] [2023-11-29 03:56:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:05,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:05,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:05,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:05,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4ce913e-5d9f-44d2-838d-835130a9d470/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:56:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:06,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 86 conjunts are in the unsatisfiable core [2023-11-29 03:56:06,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:52,563 WARN L293 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:57:28,193 WARN L293 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:58:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1320 proven. 261 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-11-29 03:58:04,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:10,771 WARN L293 SmtUtils]: Spent 1.11m on a formula simplification. DAG size of input: 231 DAG size of output: 221 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:01:00,278 WARN L293 SmtUtils]: Spent 16.34s on a formula simplification that was a NOOP. DAG size: 223 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:01:50,560 WARN L293 SmtUtils]: Spent 36.51s on a formula simplification that was a NOOP. DAG size: 237 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:02:42,952 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:05:17,181 WARN L293 SmtUtils]: Spent 29.47s on a formula simplification. DAG size of input: 223 DAG size of output: 220 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:06:33,191 WARN L293 SmtUtils]: Spent 25.17s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:08:28,062 WARN L293 SmtUtils]: Spent 9.72s on a formula simplification that was a NOOP. DAG size: 221 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:09:14,555 WARN L293 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:10:46,478 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~var_1_20~0 256))) (or (< 3 .cse0) (let ((.cse4 (mod (+ (* 255 c_~var_1_23~0) c_~var_1_28~0) 256)) (.cse13 (= 0 (mod c_~var_1_13~0 16))) (.cse64 (+ c_~var_1_13~0 1)) (.cse65 (div c_~var_1_13~0 16)) (.cse66 (mod c_~var_1_23~0 256)) (.cse23 (mod (+ c_~var_1_28~0 (* 255 c_~var_1_15~0)) 256))) (let ((.cse28 (+ .cse23 1)) (.cse22 (< .cse66 (+ c_~var_1_15~0 1))) (.cse1 (< c_~var_1_15~0 .cse66)) (.cse2 (< (+ .cse65 128) 0)) (.cse12 (< 0 .cse64)) (.cse15 (and (or (< (+ .cse65 127) 0) (< 0 .cse65)) (or (< 128 .cse65) (< .cse65 1)))) (.cse16 (and (<= .cse64 0) (not .cse13))) (.cse8 (+ .cse4 1)) (.cse7 (mod c_~last_1_var_1_27~0 256)) (.cse35 (mod c_~var_1_22~0 256)) (.cse6 (mod c_~var_1_13~0 4294967296)) (.cse14 (= .cse0 (mod (+ c_~var_1_23~0 c_~var_1_22~0 c_~var_1_15~0) 256)))) (and (or (and (or .cse1 (and (or .cse2 (and (forall ((v_z_131 Int) (v_y_130 Int)) (let ((.cse5 (* v_y_130 4294967296)) (.cse3 (* 64 v_z_131))) (or (< .cse3 (+ .cse4 .cse5 1)) (< (+ .cse4 .cse5 4294967296) .cse3) (< (mod (div (+ (* (- 64) v_z_131) .cse4 .cse5 4294967296) .cse6) 4294967296) .cse7) (< 67108863 v_z_131) (< .cse3 .cse8)))) (forall ((v_y_130 Int) (v_z_136 Int)) (let ((.cse9 (* v_y_130 4294967296))) (let ((.cse10 (+ .cse4 .cse9)) (.cse11 (* 64 v_z_136))) (or (< (mod (div (+ .cse4 (* (- 64) v_z_136) .cse9) .cse6) 4294967296) .cse7) (< .cse10 .cse11) (< v_z_136 0) (< (+ .cse11 4294967295) .cse10) (< .cse4 .cse11)))))) .cse12 .cse13 .cse14) (or .cse15 .cse16 (and (forall ((v_z_142 Int) (v_y_139 Int)) (let ((.cse18 (* v_y_139 4294967296))) (let ((.cse19 (+ .cse18 .cse4)) (.cse17 (* 64 v_z_142))) (or (< .cse4 .cse17) (< (mod (div (+ .cse18 .cse4 (* (- 64) v_z_142)) .cse6) 4294967296) .cse7) (< (+ 4294967295 .cse17) .cse19) (< v_z_142 0) (< .cse19 .cse17))))) (forall ((v_z_146 Int) (v_y_139 Int)) (let ((.cse21 (* 64 v_z_146)) (.cse20 (* v_y_139 4294967296))) (or (< (+ .cse20 .cse4 4294967296) .cse21) (< .cse21 (+ .cse20 .cse4 1)) (< .cse21 .cse8) (< 67108863 v_z_146) (< (mod (div (+ .cse20 (* (- 64) v_z_146) .cse4 4294967296) .cse6) 4294967296) .cse7))))) .cse14))) (or .cse22 (and (or .cse2 (and (forall ((v_z_122 Int) (v_y_121 Int)) (let ((.cse26 (* v_y_121 4294967296))) (let ((.cse25 (+ .cse23 .cse26)) (.cse24 (* 64 v_z_122))) (or (< .cse23 .cse24) (< (+ 4294967295 .cse24) .cse25) (< v_z_122 0) (< (mod (div (+ .cse23 .cse26 (* (- 64) v_z_122)) .cse6) 4294967296) .cse7) (< .cse25 .cse24))))) (forall ((v_z_129 Int) (v_y_121 Int)) (let ((.cse29 (* v_y_121 4294967296)) (.cse27 (* 64 v_z_129))) (or (< .cse27 .cse28) (< (mod (div (+ .cse23 .cse29 4294967296 (* (- 64) v_z_129)) .cse6) 4294967296) .cse7) (< 67108863 v_z_129) (< .cse27 (+ .cse23 .cse29 1)) (< (+ .cse23 .cse29 4294967296) .cse27))))) .cse12 .cse13 .cse14) (or .cse15 .cse16 .cse14 (and (forall ((v_z_118 Int) (v_y_112 Int)) (let ((.cse32 (* v_y_112 4294967296))) (let ((.cse31 (* 64 v_z_118)) (.cse30 (+ .cse23 .cse32))) (or (< .cse30 .cse31) (< (mod (div (+ .cse23 .cse32 (* (- 64) v_z_118)) .cse6) 4294967296) .cse7) (< .cse23 .cse31) (< v_z_118 0) (< (+ .cse31 4294967295) .cse30))))) (forall ((v_z_113 Int) (v_y_112 Int)) (let ((.cse33 (* v_y_112 4294967296)) (.cse34 (* 64 v_z_113))) (or (< (mod (div (+ .cse23 (* (- 64) v_z_113) 4294967296 .cse33) .cse6) 4294967296) .cse7) (< .cse34 (+ .cse23 .cse33 1)) (< .cse34 .cse28) (< 67108863 v_z_113) (< (+ .cse23 4294967296 .cse33) .cse34))))))))) (< .cse35 (+ .cse7 1))) (or (and (or .cse2 (and (forall ((v_y_150 Int) (v_z_158 Int)) (let ((.cse39 (* v_y_150 4294967296))) (let ((.cse38 (+ (mod (div (+ .cse23 (* (- 64) v_z_158) .cse39) .cse6) 4294967296) 1)) (.cse36 (+ .cse23 .cse39)) (.cse37 (* 64 v_z_158))) (or (< .cse36 .cse37) (< .cse35 .cse38) (< .cse7 .cse38) (< v_z_158 0) (< (+ .cse37 4294967295) .cse36) (< .cse23 .cse37))))) (forall ((v_z_153 Int) (v_y_150 Int)) (let ((.cse41 (* v_y_150 4294967296))) (let ((.cse40 (+ (mod (div (+ .cse23 (* (- 64) v_z_153) 4294967296 .cse41) .cse6) 4294967296) 1)) (.cse42 (* 64 v_z_153))) (or (< .cse7 .cse40) (< (+ .cse23 4294967296 .cse41) .cse42) (< .cse35 .cse40) (< .cse42 (+ .cse23 .cse41 1)) (< 67108863 v_z_153) (< .cse42 .cse28)))))) .cse12 .cse13 .cse14) (or .cse15 .cse16 (and (forall ((v_z_164 Int) (v_y_161 Int)) (let ((.cse46 (* v_y_161 4294967296))) (let ((.cse44 (+ .cse23 .cse46)) (.cse43 (+ (mod (div (+ .cse23 .cse46 (* (- 64) v_z_164)) .cse6) 4294967296) 1)) (.cse45 (* 64 v_z_164))) (or (< .cse35 .cse43) (< .cse44 .cse45) (< (+ 4294967295 .cse45) .cse44) (< v_z_164 0) (< .cse7 .cse43) (< .cse23 .cse45))))) (forall ((v_y_161 Int) (v_z_169 Int)) (let ((.cse49 (* v_y_161 4294967296))) (let ((.cse47 (+ (mod (div (+ .cse23 .cse49 (* (- 64) v_z_169) 4294967296) .cse6) 4294967296) 1)) (.cse48 (* 64 v_z_169))) (or (< 67108863 v_z_169) (< .cse35 .cse47) (< .cse48 .cse28) (< .cse48 (+ .cse23 .cse49 1)) (< .cse7 .cse47) (< (+ .cse23 .cse49 4294967296) .cse48)))))) .cse14)) .cse22) (or .cse1 (and (or .cse2 .cse12 .cse13 .cse14 (and (forall ((v_y_183 Int) (v_z_189 Int)) (let ((.cse52 (* v_y_183 4294967296))) (let ((.cse50 (+ (mod (div (+ (* (- 64) v_z_189) .cse4 .cse52 4294967296) .cse6) 4294967296) 1)) (.cse51 (* 64 v_z_189))) (or (< .cse35 .cse50) (< .cse7 .cse50) (< .cse51 .cse8) (< (+ .cse4 .cse52 4294967296) .cse51) (< .cse51 (+ .cse4 .cse52 1)) (< 67108863 v_z_189))))) (forall ((v_z_187 Int) (v_y_183 Int)) (let ((.cse56 (* v_y_183 4294967296))) (let ((.cse53 (+ .cse4 .cse56)) (.cse54 (* 64 v_z_187)) (.cse55 (+ (mod (div (+ (* (- 64) v_z_187) .cse4 .cse56) .cse6) 4294967296) 1))) (or (< .cse53 .cse54) (< (+ 4294967295 .cse54) .cse53) (< .cse4 .cse54) (< .cse7 .cse55) (< .cse35 .cse55) (< v_z_187 0))))))) (or .cse15 .cse16 (and (forall ((v_z_175 Int) (v_y_172 Int)) (let ((.cse59 (* v_y_172 4294967296))) (let ((.cse57 (+ (mod (div (+ (* (- 64) v_z_175) .cse4 4294967296 .cse59) .cse6) 4294967296) 1)) (.cse58 (* 64 v_z_175))) (or (< .cse7 .cse57) (< .cse58 .cse8) (< .cse35 .cse57) (< .cse58 (+ .cse4 .cse59 1)) (< 67108863 v_z_175) (< (+ .cse4 4294967296 .cse59) .cse58))))) (forall ((v_y_172 Int) (v_z_181 Int)) (let ((.cse63 (* v_y_172 4294967296))) (let ((.cse60 (* 64 v_z_181)) (.cse61 (+ .cse4 .cse63)) (.cse62 (+ (mod (div (+ (* (- 64) v_z_181) .cse4 .cse63) .cse6) 4294967296) 1))) (or (< .cse4 .cse60) (< .cse61 .cse60) (< v_z_181 0) (< .cse7 .cse62) (< (+ .cse60 4294967295) .cse61) (< .cse35 .cse62)))))) .cse14)))))))) is different from true [2023-11-29 04:10:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-29 04:10:46,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:46,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073041630] [2023-11-29 04:10:46,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:46,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695677163] [2023-11-29 04:10:46,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695677163] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 04:10:46,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:10:46,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [43] total 58 [2023-11-29 04:10:46,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606446688] [2023-11-29 04:10:46,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:46,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:10:46,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:46,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:10:46,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=2741, Unknown=4, NotChecked=110, Total=3306 [2023-11-29 04:10:46,694 INFO L87 Difference]: Start difference. First operand 108 states and 169 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)